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MICRF011YM TR

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RF Receiver (Not Recommended for New Designs)300-440MHz RF Receiver
Manufacturer: Microchip


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MICRF011YM TR
Microchip

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Microchip
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RF Receiver
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Microchip Technology / Micrel
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MICRF011 tm QwikRadio Receiver/Data Demodulator Preliminary Information Features General Description ? Complete UHF receiver on a monolithic chip OOK (ON-OFF Keyed) Receiver IC for remote wireless applications, y ? Frequency range 300 to 440 MHz ?antenna-in, data-out? monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual ? Typical range over 200 meters with monopole antenna ? Data rates to 2.5kbps (SWP), 10kbps y r ? Automatic tuning, no manual adjustment The MICRF011 is a functional and pin equivalent upgrade to the ? No Filters or Inductors required ? Low Operating Supply Current? 2.4 mA ? Fully pin compatible with MICRF001 . In FIXED mode, the device functions like a conventionaland SWP , with an (internal) local oscillator fixed at ar ? Very low RF re-radiation at the antenna r transmit ? Direct CMOS logic interface to standard decoder be accurately controlled, generally with a crystal or SAW (Surface and microprocessor ICs . r ? Extremely low external part count In SWP mode, the MICRF0 Applications ? Garage Door/Gate Openers ? Security Systems ? . r ? Remote Fan/Light Control All post-detection (demodulator) data filtering is provided on the IMPORTANT: Items in bold type represent changes from . Bandwidths r the MICRF001 specification. Differences between the MICRF001 and -011 are identified in table 2, together with design considerations for using the -011 in present MICRF001 designs. Typical Operating Circuit 385.5 MHz, 1200 bps OOK RECEIVER Micrel Inc. ? ? USA ? ? ? http://www.micrel.com fax + 1 (408) 944-0970 tel + 1 (408) 944-0800 1849 Fortune Drive San Jose, Ca 95131 filter selection based on data rate and code modulation format. mode). The user only needs to program the appropriate 10kHz (FIXED range in binary steps, from 0.625kHz to 5kHz (SWP mode) or 1.25kHz to filter bandwidths may be selected externally by the use MICRF0 11, so no external filters need to be designed. Any one of four resonato 0.5% ceramic reference crystal can be replaced with a less expensive though the receiver topology is still superheterodyne. In this mode the expensive LC transmitters without additional components or tuning, even super-regenerative receivers. Thus the MICRF0 11 can operate with less the RF bandwidth of the receiver to a value equivalent to conventional rates greater than the baseband data rate. This effectively ?broadens? 11 sweeps the (internal) local oscillator at Acoustic Wave) resonato frequency must the any conventional superheterodyne receive , single frequency based on an external reference crystal or clock. As with superheterodyne receive The MICRF0 11 provides two fundamental modes of operation, FIXED at 315MHz higher data rate support when in FIXED mode. MICRF001, providing improved range, lower power consumption, and and production costs, and improving time to market. single-chip radio receive , it is extremely easy to appl , minimizing design (FIXED) for high volume wireless applications. Because the MICRF0 11 is a true integrated. The result is a highly reliable yet extremely low cost solution tuning and reduces production costs. Receiver functions are completely technolog . This device is a true employing Micrel?s latest QwikRadio tm The MICRF0 11, an enhanced version of the MICRF001, is a single chipMICRF011 tm QwikRadio Receiver/Data Demodulator Preliminary Information Features General Description ? Complete UHF receiver on a monolithic chip OOK (ON-OFF Keyed) Receiver IC for remote wireless applications, y ? Frequency range 300 to 440 MHz ?antenna-in, data-out? monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual ? Typical range over 200 meters with monopole antenna ? Data rates to 2.5kbps (SWP), 10kbps y r ? Automatic tuning, no manual adjustment The MICRF011 is a functional and pin equivalent upgrade to the ? No Filters or Inductors required ? Low Operating Supply Current? 2.4 mA ? Fully pin compatible with MICRF001 . In FIXED mode, the device functions like a conventionaland SWP , with an (internal) local oscillator fixed at ar ? Very low RF re-radiation at the antenna r transmit ? Direct CMOS logic interface to standard decoder be accurately controlled, generally with a crystal or SAW (Surface and microprocessor ICs . r ? Extremely low external part count In SWP mode, the MICRF0 Applications ? Garage Door/Gate Openers ? Security Systems ? . r ? Remote Fan/Light Control All post-detection (demodulator) data filtering is provided on the IMPORTANT: Items in bold type represent changes from . Bandwidths r the MICRF001 specification. Differences between the MICRF001 and -011 are identified in table 2, together with design considerations for using the -011 in present MICRF001 designs. Typical Operating Circuit 385.5 MHz, 1200 bps OOK RECEIVER Micrel Inc. ? ? USA ? ? ? http://www.micrel.com fax + 1 (408) 944-0970 tel + 1 (408) 944-0800 1849 Fortune Drive San Jose, Ca 95131 filter selection based on data rate and code modulation format. mode). The user only needs to program the appropriate 10kHz (FIXED range in binary steps, from 0.625kHz to 5kHz (SWP mode) or 1.25kHz to filter bandwidths may be selected externally by the use MICRF0 11, so no external filters need to be designed. Any one of four resonato 0.5% ceramic reference crystal can be replaced with a less expensive though the receiver topology is still superheterodyne. In this mode the expensive LC transmitters without additional components or tuning, even super-regenerative receivers. Thus the MICRF0 11 can operate with less the RF bandwidth of the receiver to a value equivalent to conventional rates greater than the baseband data rate. This effectively ?broadens? 11 sweeps the (internal) local oscillator at Acoustic Wave) resonato frequency must the any conventional superheterodyne receive , single frequency based on an external reference crystal or clock. As with superheterodyne receive The MICRF0 11 provides two fundamental modes of operation, FIXED at 315MHz higher data rate support when in FIXED mode. MICRF001, providing improved range, lower power consumption, and and production costs, and improving time to market. single-chip radio receive , it is extremely easy to appl , minimizing design (FIXED) for high volume wireless applications. Because the MICRF0 11 is a true integrated. The result is a highly reliable yet extremely low cost solution tuning and reduces production costs. Receiver functions are completely technolog . This device is a true employing Micrel?s latest QwikRadio tm The MICRF0 11, an enhanced version of the MICRF001, is a single chiptm MICRF011 QwikRadio Micrel Ordering Information Part Number Temperature Range Package -40 ? C to +85 ?C -40 ? C to +85 ?C Pin Configuration (DIP and SOIC) Pin Description Pin Number Pin Name Pin Function 1 SEL0 Programs desired Demodulator Filter Bandwidth. This pin in internally pulled-up to VDD. See Table 1. VSSRF This pin is the ground return for the RF section of the IC. The bypass capacitor connected from VDDRF to VSSRF should have the shortest possible lead length. For best performance, connect VSSRF to VSSBB at the power supply only (i.e., keep VSSBB currents from flowing through VSSRF return path). 4 ANT This is the receive RF input, internally ac-coupled. Connect this pin to the receive antenna. Input impedance is high (FET gate) with approximately 2pF of shunt (parasitic) capacitance. For applications ?Application Note 22, MICRF001 Theory of Operation?.) 5 This pin is the positive supply input for the RF section of the IC. VDDBB and VDDRF should be connected directly at the IC pins. Connect a low ESL, low ESR decoupling capacitor from this pin to VSSRF, as short as possible. 6 VDDBB This pin is the positive supply input for the baseband section of the IC. VDDBB and VDDRF should be connected directly at the IC pins. 7 reference for the internal data slicing comparator. Treat this as a low-pass RC filter with source impedance of 118kohms . Note that variation in source resistance with filter selection no longer exists, as it does for the MICRF001. (See ?Application Note 22, MICRF001 Theory of Operation?, section 6.4). A standard ? 20% X7R ceramic capacitor is generally sufficient. 8 Output data pin. CMOS level compatible. VSSBB This is the ground return for the baseband section of the IC. The bypass and output capacitors connected to VSSBB should have the shortest possible lead lengths. For best performance, connect VSSRF to VSSBB at the power supply only (i.e., keep VSSBB currents from flowing through VSSRF return path). receive AGC (Automatic Gain Control). The Decay/Attack time-constant (TC) ratio is nominally set as 10:1. Use of 0.47 ?F or greater is strongly recommended for best range performance. See ?Application Note 22, MICRF001 Theory of Operation? for further information. SEL1 Programs desired Demodulator Filter Bandwidth. This pin in internally pulled-up to VDD. See Table 1. This is the timing reference for on-chip tuning and alignment. Connect either a ceramic resonator or crystal (mode dependent) between this pin and VSSBB, or drive the input with an AC coupled 0.5Vpp input clock. Use ceramic resonators without integral capacitors. Note that if operated in FIXED mode, a crystal must be used; however in SWP mode, one may use either a crystal or ceramic resonator. See ?Application Note 22, MICRF001 Theory of Operation? for details on frequency selection and accuracy. SWEN This logic pin controls the operating mode of the MICRF011. When SWEN = HIGH, the MICRF011 is in SWP mode. This is the normal (default) mode of the device. When SWEN = LOW, the device operates ?Application Note 22, MICRF001 Theory of Operation? for details.) This pin is internally pulled-up to VDD. 2 December 1998b MICRF011 as a conventional single-conversion superheterodyne receiver. (See 14 REFOSC 13 12 Integrating capacitor for on-chip CAGC 11 9/10 DO (for REFOSC frequency ft=4.90MHz) This capacitor extracts the (DC) average value from the demodulated waveform, which becomes the CTH VDDRF the ANT pin and VSSRF to provide additional receive selectivity and input overload protection. (See located in high ambient noise environments, a fixed value band-pass network may be connected between 2/3 14-Pin SOIC MICRF011BM 14-Pin DIP MICRF011BNMICRF011 tm QwikRadio Receiver/Data Demodulator Preliminary Information Features General Description ? Complete UHF receiver on a monolithic chip OOK (ON-OFF Keyed) Receiver IC for remote wireless applications, y ? Frequency range 300 to 440 MHz ?antenna-in, data-out? monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual ? Typical range over 200 meters with monopole antenna ? Data rates to 2.5kbps (SWP), 10kbps y r ? Automatic tuning, no manual adjustment The MICRF011 is a functional and pin equivalent upgrade to the ? No Filters or Inductors required ? Low Operating Supply Current? 2.4 mA ? Fully pin compatible with MICRF001 . In FIXED mode, the device functions like a conventionaland SWP , with an (internal) local oscillator fixed at ar ? Very low RF re-radiation at the antenna r transmit ? Direct CMOS logic interface to standard decoder be accurately controlled, generally with a crystal or SAW (Surface and microprocessor ICs . r ? Extremely low external part count In SWP mode, the MICRF0 Applications ? Garage Door/Gate Openers ? Security Systems ? . r ? Remote Fan/Light Control All post-detection (demodulator) data filtering is provided on the IMPORTANT: Items in bold type represent changes from . Bandwidths r the MICRF001 specification. Differences between the MICRF001 and -011 are identified in table 2, together with design considerations for using the -011 in present MICRF001 designs. Typical Operating Circuit 385.5 MHz, 1200 bps OOK RECEIVER Micrel Inc. ? ? USA ? ? ? http://www.micrel.com fax + 1 (408) 944-0970 tel + 1 (408) 944-0800 1849 Fortune Drive San Jose, Ca 95131 filter selection based on data rate and code modulation format. mode). The user only needs to program the appropriate 10kHz (FIXED range in binary steps, from 0.625kHz to 5kHz (SWP mode) or 1.25kHz to filter bandwidths may be selected externally by the use MICRF0 11, so no external filters need to be designed. Any one of four resonato 0.5% ceramic reference crystal can be replaced with a less expensive though the receiver topology is still superheterodyne. In this mode the expensive LC transmitters without additional components or tuning, even super-regenerative receivers. Thus the MICRF0 11 can operate with less the RF bandwidth of the receiver to a value equivalent to conventional rates greater than the baseband data rate. This effectively ?broadens? 11 sweeps the (internal) local oscillator at Acoustic Wave) resonato frequency must the any conventional superheterodyne receive , single frequency based on an external reference crystal or clock. As with superheterodyne receive The MICRF0 11 provides two fundamental modes of operation, FIXED at 315MHz higher data rate support when in FIXED mode. MICRF001, providing improved range, lower power consumption, and and production costs, and improving time to market. single-chip radio receive , it is extremely easy to appl , minimizing design (FIXED) for high volume wireless applications. Because the MICRF0 11 is a true integrated. The result is a highly reliable yet extremely low cost solution tuning and reduces production costs. Receiver functions are completely technolog . This device is a true employing Micrel?s latest QwikRadio tm The MICRF0 11, an enhanced version of the MICRF001, is a single chipMICRF011 tm QwikRadio Receiver/Data Demodulator Preliminary Information Features General Description ? Complete UHF receiver on a monolithic chip OOK (ON-OFF Keyed) Receiver IC for remote wireless applications, y ? Frequency range 300 to 440 MHz ?antenna-in, data-out? monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual ? Typical range over 200 meters with monopole antenna ? Data rates to 2.5kbps (SWP), 10kbps y r ? Automatic tuning, no manual adjustment The MICRF011 is a functional and pin equivalent upgrade to the ? No Filters or Inductors required ? Low Operating Supply Current? 2.4 mA ? Fully pin compatible with MICRF001 . In FIXED mode, the device functions like a conventionaland SWP , with an (internal) local oscillator fixed at ar ? Very low RF re-radiation at the antenna r transmit ? Direct CMOS logic interface to standard decoder be accurately controlled, generally with a crystal or SAW (Surface and microprocessor ICs . r ? Extremely low external part count In SWP mode, the MICRF0 Applications ? Garage Door/Gate Openers ? Security Systems ? . r ? Remote Fan/Light Control All post-detection (demodulator) data filtering is provided on the IMPORTANT: Items in bold type represent changes from . Bandwidths r the MICRF001 specification. Differences between the MICRF001 and -011 are identified in table 2, together with design considerations for using the -011 in present MICRF001 designs. Typical Operating Circuit 385.5 MHz, 1200 bps OOK RECEIVER Micrel Inc. ? ? USA ? ? ? http://www.micrel.com fax + 1 (408) 944-0970 tel + 1 (408) 944-0800 1849 Fortune Drive San Jose, Ca 95131 filter selection based on data rate and code modulation format. mode). The user only needs to program the appropriate 10kHz (FIXED range in binary steps, from 0.625kHz to 5kHz (SWP mode) or 1.25kHz to filter bandwidths may be selected externally by the use MICRF0 11, so no external filters need to be designed. Any one of four resonato 0.5% ceramic reference crystal can be replaced with a less expensive though the receiver topology is still superheterodyne. In this mode the expensive LC transmitters without additional components or tuning, even super-regenerative receivers. Thus the MICRF0 11 can operate with less the RF bandwidth of the receiver to a value equivalent to conventional rates greater than the baseband data rate. This effectively ?broadens? 11 sweeps the (internal) local oscillator at Acoustic Wave) resonato frequency must the any conventional superheterodyne receive , single frequency based on an external reference crystal or clock. As with superheterodyne receive The MICRF0 11 provides two fundamental modes of operation, FIXED at 315MHz higher data rate support when in FIXED mode. MICRF001, providing improved range, lower power consumption, and and production costs, and improving time to market. single-chip radio receive , it is extremely easy to appl , minimizing design (FIXED) for high volume wireless applications. Because the MICRF0 11 is a true integrated. The result is a highly reliable yet extremely low cost solution tuning and reduces production costs. Receiver functions are completely technolog . This device is a true employing Micrel?s latest QwikRadio tm The MICRF0 11, an enhanced version of the MICRF001, is a single chiptm MICRF011 QwikRadio Micrel Ordering Information Part Number Temperature Range Package -40 ? C to +85 ?C -40 ? C to +85 ?C Pin Configuration (DIP and SOIC) Pin Description Pin Number Pin Name Pin Function 1 SEL0 Programs desired Demodulator Filter Bandwidth. This pin in internally pulled-up to VDD. See Table 1. VSSRF This pin is the ground return for the RF section of the IC. The bypass capacitor connected from VDDRF to VSSRF should have the shortest possible lead length. For best performance, connect VSSRF to VSSBB at the power supply only (i.e., keep VSSBB currents from flowing through VSSRF return path). 4 ANT This is the receive RF input, internally ac-coupled. Connect this pin to the receive antenna. Input impedance is high (FET gate) with approximately 2pF of shunt (parasitic) capacitance. For applications ?Application Note 22, MICRF001 Theory of Operation?.) 5 This pin is the positive supply input for the RF section of the IC. VDDBB and VDDRF should be connected directly at the IC pins. Connect a low ESL, low ESR decoupling capacitor from this pin to VSSRF, as short as possible. 6 VDDBB This pin is the positive supply input for the baseband section of the IC. VDDBB and VDDRF should be connected directly at the IC pins. 7 reference for the internal data slicing comparator. Treat this as a low-pass RC filter with source impedance of 118kohms . Note that variation in source resistance with filter selection no longer exists, as it does for the MICRF001. (See ?Application Note 22, MICRF001 Theory of Operation?, section 6.4). A standard ? 20% X7R ceramic capacitor is generally sufficient. 8 Output data pin. CMOS level compatible. VSSBB This is the ground return for the baseband section of the IC. The bypass and output capacitors connected to VSSBB should have the shortest possible lead lengths. For best performance, connect VSSRF to VSSBB at the power supply only (i.e., keep VSSBB currents from flowing through VSSRF return path). receive AGC (Automatic Gain Control). The Decay/Attack time-constant (TC) ratio is nominally set as 10:1. Use of 0.47 ?F or greater is strongly recommended for best range performance. See ?Application Note 22, MICRF001 Theory of Operation? for further information. SEL1 Programs desired Demodulator Filter Bandwidth. This pin in internally pulled-up to VDD. See Table 1. This is the timing reference for on-chip tuning and alignment. Connect either a ceramic resonator or crystal (mode dependent) between this pin and VSSBB, or drive the input with an AC coupled 0.5Vpp input clock. Use ceramic resonators without integral capacitors. Note that if operated in FIXED mode, a crystal must be used; however in SWP mode, one may use either a crystal or ceramic resonator. See ?Application Note 22, MICRF001 Theory of Operation? for details on frequency selection and accuracy. SWEN This logic pin controls the operating mode of the MICRF011. When SWEN = HIGH, the MICRF011 is in SWP mode. This is the normal (default) mode of the device. When SWEN = LOW, the device operates ?Application Note 22, MICRF001 Theory of Operation? for details.) This pin is internally pulled-up to VDD. 2 December 1998b MICRF011 as a conventional single-conversion superheterodyne receiver. (See 14 REFOSC 13 12 Integrating capacitor for on-chip CAGC 11 9/10 DO (for REFOSC frequency ft=4.90MHz) This capacitor extracts the (DC) average value from the demodulated waveform, which becomes the CTH VDDRF the ANT pin and VSSRF to provide additional receive selectivity and input overload protection. (See located in high ambient noise environments, a fixed value band-pass network may be connected between 2/3 14-Pin SOIC MICRF011BM 14-Pin DIP MICRF011BNtm MICRF011 QwikRadio Micrel SEL0 SEL1 Demodulator Bandwidth (Hz) SWP Mode FIXED Mode 1 1 5000 10000 0 1 2500 5000 1 0 1250 2500 0 0 625 1250 Table 1 Nominal Demodulator (Baseband) Filter Bandwidth vs. SEL0, SEL1 and Mode No Design Change Retrofit Design Action . 1. Local Oscillator sweep range Reconsider Tx/Rx Frequency Alignment Error Budget, per App. Note 22. reduced 2X. Affects SWP mode If alignment tolerances cannot be met, consider: only. (1) tighten ceramic resonator tolerance, (2) replace ceramic resonator with crystal, or (3) not to upgrade to -011 2. Local Oscillator sweep rate reduced Impacts SWP mode maximum data rate. 2X. Affects SWP mode only. If data rate constraint cannot be met, consider (1) reduce system data rate by 2X, or (2) not to upgrade to -011 3. IF Center Frequency reduced 2X. Factor this change into Tx/Rx Frequency Alignment Error Budget. Affects both modes SWP and FIXED mode users of -001 must change crystal frequency. 4. IF Bandwidth reduced 2X. Affects Factor this change into Tx/Rx Frequency Alignment Error Budget. both modes SWP and FIXED. 5. FIXED mode Demod Filter cutoff For FIXED mode only, choose next lower filter frequency (via control pins frequencies increased 2X. Affects SEL0/1), to maintain same range performance FIXED mode only. 6. CTH Pin Impedance Recompute appropriate value of CTH capacitor, and change value on PCB 118k ? @ ft=4.90 MHz [see Note 4]. Affects both modes SWP and Table 2 MICRF001/011 Change List and Design Retrofit Guidelines 3 December 1998b MICRF011 FIXED. FIXED.MICRF011 tm QwikRadio Receiver/Data Demodulator Preliminary Information Features General Description ? Complete UHF receiver on a monolithic chip OOK (ON-OFF Keyed) Receiver IC for remote wireless applications, y ? Frequency range 300 to 440 MHz ?antenna-in, data-out? monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual ? Typical range over 200 meters with monopole antenna ? Data rates to 2.5kbps (SWP), 10kbps y r ? Automatic tuning, no manual adjustment The MICRF011 is a functional and pin equivalent upgrade to the ? No Filters or Inductors required ? Low Operating Supply Current? 2.4 mA ? Fully pin compatible with MICRF001 . In FIXED mode, the device functions like a conventionaland SWP , with an (internal) local oscillator fixed at ar ? Very low RF re-radiation at the antenna r transmit ? Direct CMOS logic interface to standard decoder be accurately controlled, generally with a crystal or SAW (Surface and microprocessor ICs . r ? Extremely low external part count In SWP mode, the MICRF0 Applications ? Garage Door/Gate Openers ? Security Systems ? . r ? Remote Fan/Light Control All post-detection (demodulator) data filtering is provided on the IMPORTANT: Items in bold type represent changes from . Bandwidths r the MICRF001 specification. Differences between the MICRF001 and -011 are identified in table 2, together with design considerations for using the -011 in present MICRF001 designs. Typical Operating Circuit 385.5 MHz, 1200 bps OOK RECEIVER Micrel Inc. ? ? USA ? ? ? http://www.micrel.com fax + 1 (408) 944-0970 tel + 1 (408) 944-0800 1849 Fortune Drive San Jose, Ca 95131 filter selection based on data rate and code modulation format. mode). The user only needs to program the appropriate 10kHz (FIXED range in binary steps, from 0.625kHz to 5kHz (SWP mode) or 1.25kHz to filter bandwidths may be selected externally by the use MICRF0 11, so no external filters need to be designed. Any one of four resonato 0.5% ceramic reference crystal can be replaced with a less expensive though the receiver topology is still superheterodyne. In this mode the expensive LC transmitters without additional components or tuning, even super-regenerative receivers. Thus the MICRF0 11 can operate with less the RF bandwidth of the receiver to a value equivalent to conventional rates greater than the baseband data rate. This effectively ?broadens? 11 sweeps the (internal) local oscillator at Acoustic Wave) resonato frequency must the any conventional superheterodyne receive , single frequency based on an external reference crystal or clock. As with superheterodyne receive The MICRF0 11 provides two fundamental modes of operation, FIXED at 315MHz higher data rate support when in FIXED mode. MICRF001, providing improved range, lower power consumption, and and production costs, and improving time to market. single-chip radio receive , it is extremely easy to appl , minimizing design (FIXED) for high volume wireless applications. Because the MICRF0 11 is a true integrated. The result is a highly reliable yet extremely low cost solution tuning and reduces production costs. Receiver functions are completely technolog . This device is a true employing Micrel?s latest QwikRadio tm The MICRF0 11, an enhanced version of the MICRF001, is a single chipMICRF011 tm QwikRadio Receiver/Data Demodulator Preliminary Information Features General Description ? Complete UHF receiver on a monolithic chip OOK (ON-OFF Keyed) Receiver IC for remote wireless applications, y ? Frequency range 300 to 440 MHz ?antenna-in, data-out? monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual ? Typical range over 200 meters with monopole antenna ? Data rates to 2.5kbps (SWP), 10kbps y r ? Automatic tuning, no manual adjustment The MICRF011 is a functional and pin equivalent upgrade to the ? No Filters or Inductors required ? Low Operating Supply Current? 2.4 mA ? Fully pin compatible with MICRF001 . In FIXED mode, the device functions like a conventionaland SWP , with an (internal) local oscillator fixed at ar ? Very low RF re-radiation at the antenna r transmit ? Direct CMOS logic interface to standard decoder be accurately controlled, generally with a crystal or SAW (Surface and microprocessor ICs . r ? Extremely low external part count In SWP mode, the MICRF0 Applications ? Garage Door/Gate Openers ? Security Systems ? . r ? Remote Fan/Light Control All post-detection (demodulator) data filtering is provided on the IMPORTANT: Items in bold type represent changes from . Bandwidths r the MICRF001 specification. Differences between the MICRF001 and -011 are identified in table 2, together with design considerations for using the -011 in present MICRF001 designs. Typical Operating Circuit 385.5 MHz, 1200 bps OOK RECEIVER Micrel Inc. ? ? USA ? ? ? http://www.micrel.com fax + 1 (408) 944-0970 tel + 1 (408) 944-0800 1849 Fortune Drive San Jose, Ca 95131 filter selection based on data rate and code modulation format. mode). The user only needs to program the appropriate 10kHz (FIXED range in binary steps, from 0.625kHz to 5kHz (SWP mode) or 1.25kHz to filter bandwidths may be selected externally by the use MICRF0 11, so no external filters need to be designed. Any one of four resonato 0.5% ceramic reference crystal can be replaced with a less expensive though the receiver topology is still superheterodyne. In this mode the expensive LC transmitters without additional components or tuning, even super-regenerative receivers. Thus the MICRF0 11 can operate with less the RF bandwidth of the receiver to a value equivalent to conventional rates greater than the baseband data rate. This effectively ?broadens? 11 sweeps the (internal) local oscillator at Acoustic Wave) resonato frequency must the any conventional superheterodyne receive , single frequency based on an external reference crystal or clock. As with superheterodyne receive The MICRF0 11 provides two fundamental modes of operation, FIXED at 315MHz higher data rate support when in FIXED mode. MICRF001, providing improved range, lower power consumption, and and production costs, and improving time to market. single-chip radio receive , it is extremely easy to appl , minimizing design (FIXED) for high volume wireless applications. Because the MICRF0 11 is a true integrated. The result is a highly reliable yet extremely low cost solution tuning and reduces production costs. Receiver functions are completely technolog . This device is a true employing Micrel?s latest QwikRadio tm The MICRF0 11, an enhanced version of the MICRF001, is a single chiptm MICRF011 QwikRadio Micrel Ordering Information Part Number Temperature Range Package -40 ? C to +85 ?C -40 ? C to +85 ?C Pin Configuration (DIP and SOIC) Pin Description Pin Number Pin Name Pin Function 1 SEL0 Programs desired Demodulator Filter Bandwidth. This pin in internally pulled-up to VDD. See Table 1. VSSRF This pin is the ground return for the RF section of the IC. The bypass capacitor connected from VDDRF to VSSRF should have the shortest possible lead length. For best performance, connect VSSRF to VSSBB at the power supply only (i.e., keep VSSBB currents from flowing through VSSRF return path). 4 ANT This is the receive RF input, internally ac-coupled. Connect this pin to the receive antenna. Input impedance is high (FET gate) with approximately 2pF of shunt (parasitic) capacitance. For applications ?Application Note 22, MICRF001 Theory of Operation?.) 5 This pin is the positive supply input for the RF section of the IC. VDDBB and VDDRF should be connected directly at the IC pins. Connect a low ESL, low ESR decoupling capacitor from this pin to VSSRF, as short as possible. 6 VDDBB This pin is the positive supply input for the baseband section of the IC. VDDBB and VDDRF should be connected directly at the IC pins. 7 reference for the internal data slicing comparator. Treat this as a low-pass RC filter with source impedance of 118kohms . Note that variation in source resistance with filter selection no longer exists, as it does for the MICRF001. (See ?Application Note 22, MICRF001 Theory of Operation?, section 6.4). A standard ? 20% X7R ceramic capacitor is generally sufficient. 8 Output data pin. CMOS level compatible. VSSBB This is the ground return for the baseband section of the IC. The bypass and output capacitors connected to VSSBB should have the shortest possible lead lengths. For best performance, connect VSSRF to VSSBB at the power supply only (i.e., keep VSSBB currents from flowing through VSSRF return path). receive AGC (Automatic Gain Control). The Decay/Attack time-constant (TC) ratio is nominally set as 10:1. Use of 0.47 ?F or greater is strongly recommended for best range performance. See ?Application Note 22, MICRF001 Theory of Operation? for further information. SEL1 Programs desired Demodulator Filter Bandwidth. This pin in internally pulled-up to VDD. See Table 1. This is the timing reference for on-chip tuning and alignment. Connect either a ceramic resonator or crystal (mode dependent) between this pin and VSSBB, or drive the input with an AC coupled 0.5Vpp input clock. Use ceramic resonators without integral capacitors. Note that if operated in FIXED mode, a crystal must be used; however in SWP mode, one may use either a crystal or ceramic resonator. See ?Application Note 22, MICRF001 Theory of Operation? for details on frequency selection and accuracy. SWEN This logic pin controls the operating mode of the MICRF011. When SWEN = HIGH, the MICRF011 is in SWP mode. This is the normal (default) mode of the device. When SWEN = LOW, the device operates ?Application Note 22, MICRF001 Theory of Operation? for details.) This pin is internally pulled-up to VDD. 2 December 1998b MICRF011 as a conventional single-conversion superheterodyne receiver. (See 14 REFOSC 13 12 Integrating capacitor for on-chip CAGC 11 9/10 DO (for REFOSC frequency ft=4.90MHz) This capacitor extracts the (DC) average value from the demodulated waveform, which becomes the CTH VDDRF the ANT pin and VSSRF to provide additional receive selectivity and input overload protection. (See located in high ambient noise environments, a fixed value band-pass network may be connected between 2/3 14-Pin SOIC MICRF011BM 14-Pin DIP MICRF011BNMICRF011 tm QwikRadio Receiver/Data Demodulator Preliminary Information Features General Description ? Complete UHF receiver on a monolithic chip OOK (ON-OFF Keyed) Receiver IC for remote wireless applications, y ? Frequency range 300 to 440 MHz ?antenna-in, data-out? monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual ? Typical range over 200 meters with monopole antenna ? Data rates to 2.5kbps (SWP), 10kbps y r ? Automatic tuning, no manual adjustment The MICRF011 is a functional and pin equivalent upgrade to the ? No Filters or Inductors required ? Low Operating Supply Current? 2.4 mA ? Fully pin compatible with MICRF001 . In FIXED mode, the device functions like a conventionaland SWP , with an (internal) local oscillator fixed at ar ? Very low RF re-radiation at the antenna r transmit ? Direct CMOS logic interface to standard decoder be accurately controlled, generally with a crystal or SAW (Surface and microprocessor ICs . r ? Extremely low external part count In SWP mode, the MICRF0 Applications ? Garage Door/Gate Openers ? Security Systems ? . r ? Remote Fan/Light Control All post-detection (demodulator) data filtering is provided on the IMPORTANT: Items in bold type represent changes from . Bandwidths r the MICRF001 specification. Differences between the MICRF001 and -011 are identified in table 2, together with design considerations for using the -011 in present MICRF001 designs. Typical Operating Circuit 385.5 MHz, 1200 bps OOK RECEIVER Micrel Inc. ? ? USA ? ? ? http://www.micrel.com fax + 1 (408) 944-0970 tel + 1 (408) 944-0800 1849 Fortune Drive San Jose, Ca 95131 filter selection based on data rate and code modulation format. mode). The user only needs to program the appropriate 10kHz (FIXED range in binary steps, from 0.625kHz to 5kHz (SWP mode) or 1.25kHz to filter bandwidths may be selected externally by the use MICRF0 11, so no external filters need to be designed. Any one of four resonato 0.5% ceramic reference crystal can be replaced with a less expensive though the receiver topology is still superheterodyne. In this mode the expensive LC transmitters without additional components or tuning, even super-regenerative receivers. Thus the MICRF0 11 can operate with less the RF bandwidth of the receiver to a value equivalent to conventional rates greater than the baseband data rate. This effectively ?broadens? 11 sweeps the (internal) local oscillator at Acoustic Wave) resonato frequency must the any conventional superheterodyne receive , single frequency based on an external reference crystal or clock. As with superheterodyne receive The MICRF0 11 provides two fundamental modes of operation, FIXED at 315MHz higher data rate support when in FIXED mode. MICRF001, providing improved range, lower power consumption, and and production costs, and improving time to market. single-chip radio receive , it is extremely easy to appl , minimizing design (FIXED) for high volume wireless applications. Because the MICRF0 11 is a true integrated. The result is a highly reliable yet extremely low cost solution tuning and reduces production costs. Receiver functions are completely technolog . This device is a true employing Micrel?s latest QwikRadio tm The MICRF0 11, an enhanced version of the MICRF001, is a single chipMICRF011 tm QwikRadio Receiver/Data Demodulator Preliminary Information Features General Description ? Complete UHF receiver on a monolithic chip OOK (ON-OFF Keyed) Receiver IC for remote wireless applications, y ? Frequency range 300 to 440 MHz ?antenna-in, data-out? monolithic device. All RF and IF tuning is accomplished automatically within the IC, which eliminates manual ? Typical range over 200 meters with monopole antenna ? Data rates to 2.5kbps (SWP), 10kbps y r ? Automatic tuning, no manual adjustment The MICRF011 is a functional and pin equivalent upgrade to the ? No Filters or Inductors required ? Low Operating Supply Current? 2.4 mA ? Fully pin compatible with MICRF001 . In FIXED mode, the device functions like a conventionaland SWP , with an (internal) local oscillator fixed at ar ? Very low RF re-radiation at the antenna r transmit ? Direct CMOS logic interface to standard decoder be accurately controlled, generally with a crystal or SAW (Surface and microprocessor ICs . r ? Extremely low external part count In SWP mode, the MICRF0 Applications ? Garage Door/Gate Openers ? Security Systems ? . r ? Remote Fan/Light Control All post-detection (demodulator) data filtering is provided on the IMPORTANT: Items in bold type represent changes from . Bandwidths r the MICRF001 specification. Differences between the MICRF001 and -011 are identified in table 2, together with design considerations for using the -011 in present MICRF001 designs. Typical Operating Circuit 385.5 MHz, 1200 bps OOK RECEIVER Micrel Inc. ? ? USA ? ? ? http://www.micrel.com fax + 1 (408) 944-0970 tel + 1 (408) 944-0800 1849 Fortune Drive San Jose, Ca 95131 filter selection based on data rate and code modulation format. mode). The user only needs to program the appropriate 10kHz (FIXED range in binary steps, from 0.625kHz to 5kHz (SWP mode) or 1.25kHz to filter bandwidths may be selected externally by the use MICRF0 11, so no external filters need to be designed. Any one of four resonato 0.5% ceramic reference crystal can be replaced with a less expensive though the receiver topology is still superheterodyne. In this mode the expensive LC transmitters without additional components or tuning, even super-regenerative receivers. Thus the MICRF0 11 can operate with less the RF bandwidth of the receiver to a value equivalent to conventional rates greater than the baseband data rate. This effectively ?broadens? 11 sweeps the (internal) local oscillator at Acoustic Wave) resonato frequency must the any conventional superheterodyne receive , single frequency based on an external reference crystal or clock. As with superheterodyne receive The MICRF0 11 provides two fundamental modes of operation, FIXED at 315MHz higher data rate support when in FIXED mode. MICRF001, providing improved range, lower power consumption, and and production costs, and improving time to market. single-chip radio receive , it is extremely easy to appl , minimizing design (FIXED) for high volume wireless applications. Because the MICRF0 11 is a true integrated. The result is a highly reliable yet extremely low cost solution tuning and reduces production costs. Receiver functions are completely technolog . This device is a true employing Micrel?s latest QwikRadio tm The MICRF0 11, an enhanced version of the MICRF001, is a single chiptm MICRF011 QwikRadio Micrel Ordering Information Part Number Temperature Range Package -40 ? C to +85 ?C -40 ? C to +85 ?C Pin Configuration (DIP and SOIC) Pin Description Pin Number Pin Name Pin Function 1 SEL0 Programs desired Demodulator Filter Bandwidth. This pin in internally pulled-up to VDD. See Table 1. VSSRF This pin is the ground return for the RF section of the IC. The bypass capacitor connected from VDDRF to VSSRF should have the shortest possible lead length. For best performance, connect VSSRF to VSSBB at the power supply only (i.e., keep VSSBB currents from flowing through VSSRF return path). 4 ANT This is the receive RF input, internally ac-coupled. Connect this pin to the receive antenna. Input impedance is high (FET gate) with approximately 2pF of shunt (parasitic) capacitance. For applications ?Application Note 22, MICRF001 Theory of Operation?.) 5 This pin is the positive supply input for the RF section of the IC. VDDBB and VDDRF should be connected directly at the IC pins. Connect a low ESL, low ESR decoupling capacitor from this pin to VSSRF, as short as possible. 6 VDDBB This pin is the positive supply input for the baseband section of the IC. VDDBB and VDDRF should be connected directly at the IC pins. 7 reference for the internal data slicing comparator. Treat this as a low-pass RC filter with source impedance of 118kohms . Note that variation in source resistance with filter selection no longer exists, as it does for the MICRF001. (See ?Application Note 22, MICRF001 Theory of Operation?, section 6.4). A standard ? 20% X7R ceramic capacitor is generally sufficient. 8 Output data pin. CMOS level compatible. VSSBB This is the ground return for the baseband section of the IC. The bypass and output capacitors connected to VSSBB should have the shortest possible lead lengths. For best performance, connect VSSRF to VSSBB at the power supply only (i.e., keep VSSBB currents from flowing through VSSRF return path). receive AGC (Automatic Gain Control). The Decay/Attack time-constant (TC) ratio is nominally set as 10:1. Use of 0.47 ?F or greater is strongly recommended for best range performance. See ?Application Note 22, MICRF001 Theory of Operation? for further information. SEL1 Programs desired Demodulator Filter Bandwidth. This pin in internally pulled-up to VDD. See Table 1. This is the timing reference for on-chip tuning and alignment. Connect either a ceramic resonator or crystal (mode dependent) between this pin and VSSBB, or drive the input with an AC coupled 0.5Vpp input clock. Use ceramic resonators without integral capacitors. Note that if operated in FIXED mode, a crystal must be used; however in SWP mode, one may use either a crystal or ceramic resonator. See ?Application Note 22, MICRF001 Theory of Operation? for details on frequency selection and accuracy. SWEN This logic pin controls the operating mode of the MICRF011. When SWEN = HIGH, the MICRF011 is in SWP mode. This is the normal (default) mode of the device. When SWEN = LOW, the device operates ?Application Note 22, MICRF001 Theory of Operation? for details.) This pin is internally pulled-up to VDD. 2 December 1998b MICRF011 as a conventional single-conversion superheterodyne receiver. (See 14 REFOSC 13 12 Integrating capacitor for on-chip CAGC 11 9/10 DO (for REFOSC frequency ft=4.90MHz) This capacitor extracts the (DC) average value from the demodulated waveform, which becomes the CTH VDDRF the ANT pin and VSSRF to provide additional receive selectivity and input overload protection. (See located in high ambient noise environments, a fixed value band-pass network may be connected between 2/3 14-Pin SOIC MICRF011BM 14-Pin DIP MICRF011BNtm MICRF011 QwikRadio Micrel SEL0 SEL1 Demodulator Bandwidth (Hz) SWP Mode FIXED Mode 1 1 5000 10000 0 1 2500 5000 1 0 1250 2500 0 0 625 1250 Table 1 Nominal Demodulator (Baseband) Filter Bandwidth vs. SEL0, SEL1 and Mode No Design Change Retrofit Design Action . 1. Local Oscillator sweep range Reconsider Tx/Rx Frequency Alignment Error Budget, per App. Note 22. reduced 2X. Affects SWP mode If alignment tolerances cannot be met, consider: only. (1) tighten ceramic resonator tolerance, (2) replace ceramic resonator with crystal, or (3) not to upgrade to -011 2. Local Oscillator sweep rate reduced Impacts SWP mode maximum data rate. 2X. Affects SWP mode only. If data rate constraint cannot be met, consider (1) reduce system data rate by 2X, or (2) not to upgrade to -011 3. IF Center Frequency reduced 2X. Factor this change into Tx/Rx Frequency Alignment Error Budget. Affects both modes SWP and FIXED mode users of -001 must change crystal frequency. 4. IF Bandwidth reduced 2X. Affects Factor this change into Tx/Rx Frequency Alignment Error Budget. both modes SWP and FIXED. 5. FIXED mode Demod Filter cutoff For FIXED mode only, choose next lower filter frequency (via control pins frequencies increased 2X. Affects SEL0/1), to maintain same range performance FIXED mode only. 6. CTH Pin Impedance Recompute appropriate value of CTH capacitor, and change value on PCB 118k O @ ft=4.90 MHz [see Note 4]. Affects both modes SWP and Table 2 MICRF001/011 Change List and Design Retrofit Guidelines 3 December 1998b MICRF011 FIXED. FIXED.

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8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

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