Product Information

MICRF220AYQS-TR

Product Image X-ON

RF Receiver ASK/OOK 3.3V 16-Pin QSOP T/R
Manufacturer: Microchip


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MICRF220AYQS-TR
Microchip

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Manufacturer
Microchip
Product Category
RF Receiver
RoHS - XON
Y Icon ROHS
Package / Case
QSOP-16
Mounting Style
Smd/Smt
Packaging
Cut Tape
Brand
Microchip Technology / Micrel
Product Type
Rf Receiver
Factory Pack Quantity :
2500
Subcategory
Wireless & Rf Integrated Circuits
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MICRF220 300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch General Description Features The MICRF220 is a 300MHz to 450MHz super- ? ?110dBm sensitivity at 1kbps with 0.1% BER heterodyne, image-reject, RF receiver with automatic ? Supports bit rates up to 20kbps at 433.92MHz gain control, ASK/OOK demodulator, analog RSSI ? 25dB image-reject mixer output, and integrated squelch features. It only requires ? No IF filter required a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low- ? 60dB analog RSSI output range power, RKE, TPMS, and remote actuation applications. ? 3.0V to 3.6V supply voltage range The MICRF220 achieves ?110dBm sensitivity at a bit ? 4.3mA supply current at 315MHz rate of 1kbps with 0.1% BER. Four demodulator filter ? 6.0mA supply current at 434MHz bandwidths are selectable in binary steps from 1625Hz ? 0.1?A supply current in shutdown mode to 13kHz at 433.92MHz, allowing the device to support ? Data output squelch until valid bits detected bit rates up to 20kbps. The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes ? 16-pin QSOP package (4.9mm x 6.0mm) 4.3mA of supply current at 315MHz and 6.0mA at ? ?40?C to +105?C temperature range 433.92MHz. A shutdown mode reduces supply current to ? 3kV HBM ESD Rating 0.1?A typical. The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity. Datasheets and support documentation can be found on Micrel?s website at: www.micrel.com. Typical Application 433.92MHz, 1kbps Operation Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 2.0 August 19, 2015 RadioTech@micrel.com or (408) 944-0800 MICRF220 300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch General Description Features The MICRF220 is a 300MHz to 450MHz super- ? ?110dBm sensitivity at 1kbps with 0.1% BER heterodyne, image-reject, RF receiver with automatic ? Supports bit rates up to 20kbps at 433.92MHz gain control, ASK/OOK demodulator, analog RSSI ? 25dB image-reject mixer output, and integrated squelch features. It only requires ? No IF filter required a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low- ? 60dB analog RSSI output range power, RKE, TPMS, and remote actuation applications. ? 3.0V to 3.6V supply voltage range The MICRF220 achieves -110dBm sensitivity at a bit ? 4.3mA supply current at 315MHz rate of 1kbps with 0.1% BER. Four demodulator filter ? 6.0mA supply current at 434MHz bandwidths are selectable in binary steps from 1625Hz ? 0.1?A supply current in shutdown mode to 13kHz at 433.92MHz, allowing the device to support ? Data output squelch until valid bits detected bit rates up to 20kbps. The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes ? 16-pin QSOP package (4.9mm x 6.0mm) 4.3mA of supply current at 315MHz and 6.0mA at ? -40?C to +105?C temperature range 433.92MHz. A shutdown mode reduces supply current to ? 3kV HBM ESD Rating 0.1?A typical. The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity. Datasheets and support documentation can be found on Micrel?s website at: www.micrel.com. Typical Application 433.92MHz, 1kbps Operation Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 2.0 August 19, 2015 RadioTech@micrel.com or (408) 944-0800 Micrel, Inc. MICRF220 Ordering Information Part Number Temperature Range Package MICRF220AYQS ?40?C to +105?C 16-Pin QSOP Pin Configuration MICRF220AYQS Pin Description Pin Pin Pin Function Number Name Reference resonator connection to the Pierce oscillator. May also be driven by external reference signal of 1 RO1 200mVp-p to 1.5V p-p amplitude maximum. Internal capacitance of 7pF to GND during normal operation. 2 GNDRF Ground connection for ANT RF input. Connect to PCB ground plane. Antenna Input: RF Signal Input from Antenna. Internally AC coupled. It is recommended to use a matching 3 ANT network with an inductor-to-RF ground to improve ESD protection. 4 GNDRF Ground connection for ANT RF input. Connect to PCB ground plane. Positive supply connection for all chip functions. Bypass with 0.1?F capacitor located as close to the VDD pin 5 VDD as possible. Squelch Control Logic-Level Input. An internal pull-up (5?A typical) pulls the logic-input HIGH when the device 6 SQ is enabled. A logic LOW on SQ squelches, or reduces, the random activity on DO pin when there is no RF input signal. Demodulator Filter Bandwidth Select Logic-Level Input. This pin has an internal pull-up (3?A typical) when the 7 SEL0 chip is on. Use in conjunction with SEL1 to control demodulation bandwidth. Shutdown Control Logic-Level Input. A logic-level LOW enables the device. A logic-level HIGH places the 8 SHDN device in low-power shutdown mode. An internal pull-up (5?A typical) pulls the logic input HIGH. 9 GND Ground connection for all chip functions except for RF input. Connect to PCB ground plane. Data Output. Demodulated data output. A current limited CMOS output during normal operation, 25k? pull- 10 DO down is present when device is in shutdown. Demodulator Filter Bandwidth Select Logic-Level Input. This pin has an internal pull-up (3?A typical) when the 11 SEL1 chip is on. Use in conjunction with SEL0 to Demodulation bandwidth. Demodulation Threshold Voltage Integration Capacitor. Connect a 0.1?F capacitor from CTH pin-to-GND to 12 CTH provide a stable slicing threshold. AGC Filter Capacitor. Connect a capacitor from this pin to GND. Refer to the AGC Loop and CAGC section for 13 CAGC information on the capacitor value. Received Signal Strength Indicator. The voltage on this pin is an inversed amplified version of the voltage on 14 RSSI CAGC. Output is from a switched capacitor integrating op amp with 250? typical output impedance. 15 NC No Connect. Leave this pin floating. Reference resonator connection to the Pierce oscillator. Internal capacitance of 7pF to GND during normal 16 RO2 operation. Revision 2.0 August 19, 2015 2 MICRF220 300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch General Description Features The MICRF220 is a 300MHz to 450MHz super- ? ?110dBm sensitivity at 1kbps with 0.1% BER heterodyne, image-reject, RF receiver with automatic ? Supports bit rates up to 20kbps at 433.92MHz gain control, ASK/OOK demodulator, analog RSSI ? 25dB image-reject mixer output, and integrated squelch features. It only requires ? No IF filter required a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low- ? 60dB analog RSSI output range power, RKE, TPMS, and remote actuation applications. ? 3.0V to 3.6V supply voltage range The MICRF220 achieves -110dBm sensitivity at a bit ? 4.3mA supply current at 315MHz rate of 1kbps with 0.1% BER. Four demodulator filter ? 6.0mA supply current at 434MHz bandwidths are selectable in binary steps from 1625Hz ? 0.1?A supply current in shutdown mode to 13kHz at 433.92MHz, allowing the device to support ? Data output squelch until valid bits detected bit rates up to 20kbps. The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes ? 16-pin QSOP package (4.9mm x 6.0mm) 4.3mA of supply current at 315MHz and 6.0mA at ? -40?C to +105?C temperature range 433.92MHz. A shutdown mode reduces supply current to ? 3kV HBM ESD Rating 0.1?A typical. The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity. Datasheets and support documentation can be found on Micrel?s website at: www.micrel.com. Typical Application 433.92MHz, 1kbps Operation Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 2.0 August 19, 2015 RadioTech@micrel.com or (408) 944-0800 MICRF220 300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch General Description Features The MICRF220 is a 300MHz to 450MHz super- ? ?110dBm sensitivity at 1kbps with 0.1% BER heterodyne, image-reject, RF receiver with automatic ? Supports bit rates up to 20kbps at 433.92MHz gain control, ASK/OOK demodulator, analog RSSI ? 25dB image-reject mixer output, and integrated squelch features. It only requires ? No IF filter required a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low- ? 60dB analog RSSI output range power, RKE, TPMS, and remote actuation applications. ? 3.0V to 3.6V supply voltage range The MICRF220 achieves -110dBm sensitivity at a bit ? 4.3mA supply current at 315MHz rate of 1kbps with 0.1% BER. Four demodulator filter ? 6.0mA supply current at 434MHz bandwidths are selectable in binary steps from 1625Hz ? 0.1?A supply current in shutdown mode to 13kHz at 433.92MHz, allowing the device to support ? Data output squelch until valid bits detected bit rates up to 20kbps. The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes ? 16-pin QSOP package (4.9mm x 6.0mm) 4.3mA of supply current at 315MHz and 6.0mA at ? -40?C to +105?C temperature range 433.92MHz. A shutdown mode reduces supply current to ? 3kV HBM ESD Rating 0.1?A typical. The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity. Datasheets and support documentation can be found on Micrel?s website at: www.micrel.com. Typical Application 433.92MHz, 1kbps Operation Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 2.0 August 19, 2015 RadioTech@micrel.com or (408) 944-0800 Micrel, Inc. MICRF220 Ordering Information Part Number Temperature Range Package MICRF220AYQS ?40?C to +105?C 16-Pin QSOP Pin Configuration MICRF220AYQS Pin Description Pin Pin Pin Function Number Name Reference resonator connection to the Pierce oscillator. May also be driven by external reference signal of 1 RO1 200mVp-p to 1.5V p-p amplitude maximum. Internal capacitance of 7pF to GND during normal operation. 2 GNDRF Ground connection for ANT RF input. Connect to PCB ground plane. Antenna Input: RF Signal Input from Antenna. Internally AC coupled. It is recommended to use a matching 3 ANT network with an inductor-to-RF ground to improve ESD protection. 4 GNDRF Ground connection for ANT RF input. Connect to PCB ground plane. Positive supply connection for all chip functions. Bypass with 0.1?F capacitor located as close to the VDD pin 5 VDD as possible. Squelch Control Logic-Level Input. An internal pull-up (5?A typical) pulls the logic-input HIGH when the device 6 SQ is enabled. A logic LOW on SQ squelches, or reduces, the random activity on DO pin when there is no RF input signal. Demodulator Filter Bandwidth Select Logic-Level Input. This pin has an internal pull-up (3?A typical) when the 7 SEL0 chip is on. Use in conjunction with SEL1 to control demodulation bandwidth. Shutdown Control Logic-Level Input. A logic-level LOW enables the device. A logic-level HIGH places the 8 SHDN device in low-power shutdown mode. An internal pull-up (5?A typical) pulls the logic input HIGH. 9 GND Ground connection for all chip functions except for RF input. Connect to PCB ground plane. Data Output. Demodulated data output. A current limited CMOS output during normal operation, 25kO pull- 10 DO down is present when device is in shutdown. Demodulator Filter Bandwidth Select Logic-Level Input. This pin has an internal pull-up (3?A typical) when the 11 SEL1 chip is on. Use in conjunction with SEL0 to Demodulation bandwidth. Demodulation Threshold Voltage Integration Capacitor. Connect a 0.1?F capacitor from CTH pin-to-GND to 12 CTH provide a stable slicing threshold. AGC Filter Capacitor. Connect a capacitor from this pin to GND. Refer to the AGC Loop and CAGC section for 13 CAGC information on the capacitor value. Received Signal Strength Indicator. The voltage on this pin is an inversed amplified version of the voltage on 14 RSSI CAGC. Output is from a switched capacitor integrating op amp with 250O typical output impedance. 15 NC No Connect. Leave this pin floating. Reference resonator connection to the Pierce oscillator. Internal capacitance of 7pF to GND during normal 16 RO2 operation. Revision 2.0 August 19, 2015 2 Micrel, Inc. MICRF220 (1) (2) Absolute Maximum Ratings Operating Ratings Supply Voltage (V ) .................................................. +5V Supply Voltage (V ) ............................. +3.0V to +3.6V DD DD ).................. ?40?C to +105?C ANT, SQ, SEL0, SEL1, Ambient Temperature (T A ANT, SQ, SEL0, SEL1, SHDN DC Voltage. .................... ?0.3V to V + 0.3V DD Junction Temperature ........................................... +150?C SHDN DC Voltage ................ ....?0.3V to V + 0.3V DD Lead Temperature (soldering, 10sec.) .................. +300?C Maximum Input RF Power .................................. 0 dBm Receive Modulation Duty Cycle ....................... 20~80% Storage Temperature ............................. ?65?C to +150?C Maximum Receiver Input Power ......................... +10dBm Frequency Range .......................... 300MHz to 450MHz (3) ESD Rating .................................................... 3kV HBM Electrical Characteristics V = 3.3V, V = GND = 0V, SQ = open, C = 4.7?F, C = 0.1?F, unless otherwise noted. Bold values indicate DD SHDN CAGC CTH ?40?C ? T ? 105?C. ?Bit rate? refers to the encoded bit rate throughout this datasheet (see Note 4). A Parameter Condition Min. Typ. Max. Units Continuous Operation, f = 315MHz 4.3 RF Operating Supply Current mA Continuous Operation, f = 433.92MHz 6.0 RF Shutdown Current V = V 0.1 ?A SHDN DD Receiver 433.92MHz, V = V = 0V, BER = 1% ?112.5 SEL1 SEL0 433.92MHz, V = V = 0V, SEL1 SEL0 ?110 BER = 0.1% Conducted Receiver dBm 315MHz, V = 0V, V = 3.3V, SEL1 SEL0 Sensitivity@1kbps (Note 5) ?112.5 BER = 1% 315MHz, V = 0V, V = 3.3V, SEL1 SEL0 ?110 BER = 0.1% Image Rejection f = f ? 2f 25 dB IMAGE RF IF f = 315MHz 0.85 RF IF Center Frequency (f ) MHz IF f = 433.92MHz 1.18 RF f = 315MHz 235 RF ?3dB IF Bandwidth kHz f = 433.92MHz 330 RF 1.15 ?40dBm RF input level CAGC Voltage Range V ?100dBm RF input level 1.55 Reference Oscillator f = 315 MHz 9.81713 RF Reference Oscillator MHz Frequency f = 433.92 MHz 13.52313 RF Reference Buffer Input RO1 when driven externally 1.6 k? Impedance Reference Oscillator Bias RO2 1.15 V Voltage Reference Oscillator Input External input, AC couple to RO1 0.2 1.5 V P-P Range Reference Oscillator Source V = 0V 300 ?A RO1 Current Revision 2.0 August 19, 2015 3 MICRF220 300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch General Description Features The MICRF220 is a 300MHz to 450MHz super- ? ?110dBm sensitivity at 1kbps with 0.1% BER heterodyne, image-reject, RF receiver with automatic ? Supports bit rates up to 20kbps at 433.92MHz gain control, ASK/OOK demodulator, analog RSSI ? 25dB image-reject mixer output, and integrated squelch features. It only requires ? No IF filter required a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low- ? 60dB analog RSSI output range power, RKE, TPMS, and remote actuation applications. ? 3.0V to 3.6V supply voltage range The MICRF220 achieves -110dBm sensitivity at a bit ? 4.3mA supply current at 315MHz rate of 1kbps with 0.1% BER. Four demodulator filter ? 6.0mA supply current at 434MHz bandwidths are selectable in binary steps from 1625Hz ? 0.1?A supply current in shutdown mode to 13kHz at 433.92MHz, allowing the device to support ? Data output squelch until valid bits detected bit rates up to 20kbps. The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes ? 16-pin QSOP package (4.9mm x 6.0mm) 4.3mA of supply current at 315MHz and 6.0mA at ? -40?C to +105?C temperature range 433.92MHz. A shutdown mode reduces supply current to ? 3kV HBM ESD Rating 0.1?A typical. The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity. Datasheets and support documentation can be found on Micrel?s website at: www.micrel.com. Typical Application 433.92MHz, 1kbps Operation Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 2.0 August 19, 2015 RadioTech@micrel.com or (408) 944-0800 MICRF220 300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch General Description Features The MICRF220 is a 300MHz to 450MHz super- ? ?110dBm sensitivity at 1kbps with 0.1% BER heterodyne, image-reject, RF receiver with automatic ? Supports bit rates up to 20kbps at 433.92MHz gain control, ASK/OOK demodulator, analog RSSI ? 25dB image-reject mixer output, and integrated squelch features. It only requires ? No IF filter required a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low- ? 60dB analog RSSI output range power, RKE, TPMS, and remote actuation applications. ? 3.0V to 3.6V supply voltage range The MICRF220 achieves -110dBm sensitivity at a bit ? 4.3mA supply current at 315MHz rate of 1kbps with 0.1% BER. Four demodulator filter ? 6.0mA supply current at 434MHz bandwidths are selectable in binary steps from 1625Hz ? 0.1?A supply current in shutdown mode to 13kHz at 433.92MHz, allowing the device to support ? Data output squelch until valid bits detected bit rates up to 20kbps. The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes ? 16-pin QSOP package (4.9mm x 6.0mm) 4.3mA of supply current at 315MHz and 6.0mA at ? -40?C to +105?C temperature range 433.92MHz. A shutdown mode reduces supply current to ? 3kV HBM ESD Rating 0.1?A typical. The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity. Datasheets and support documentation can be found on Micrel?s website at: www.micrel.com. Typical Application 433.92MHz, 1kbps Operation Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 2.0 August 19, 2015 RadioTech@micrel.com or (408) 944-0800 Micrel, Inc. MICRF220 Ordering Information Part Number Temperature Range Package MICRF220AYQS ?40?C to +105?C 16-Pin QSOP Pin Configuration MICRF220AYQS Pin Description Pin Pin Pin Function Number Name Reference resonator connection to the Pierce oscillator. May also be driven by external reference signal of 1 RO1 200mVp-p to 1.5V p-p amplitude maximum. Internal capacitance of 7pF to GND during normal operation. 2 GNDRF Ground connection for ANT RF input. Connect to PCB ground plane. Antenna Input: RF Signal Input from Antenna. Internally AC coupled. It is recommended to use a matching 3 ANT network with an inductor-to-RF ground to improve ESD protection. 4 GNDRF Ground connection for ANT RF input. Connect to PCB ground plane. Positive supply connection for all chip functions. Bypass with 0.1?F capacitor located as close to the VDD pin 5 VDD as possible. Squelch Control Logic-Level Input. An internal pull-up (5?A typical) pulls the logic-input HIGH when the device 6 SQ is enabled. A logic LOW on SQ squelches, or reduces, the random activity on DO pin when there is no RF input signal. Demodulator Filter Bandwidth Select Logic-Level Input. This pin has an internal pull-up (3?A typical) when the 7 SEL0 chip is on. Use in conjunction with SEL1 to control demodulation bandwidth. Shutdown Control Logic-Level Input. A logic-level LOW enables the device. A logic-level HIGH places the 8 SHDN device in low-power shutdown mode. An internal pull-up (5?A typical) pulls the logic input HIGH. 9 GND Ground connection for all chip functions except for RF input. Connect to PCB ground plane. Data Output. Demodulated data output. A current limited CMOS output during normal operation, 25kO pull- 10 DO down is present when device is in shutdown. Demodulator Filter Bandwidth Select Logic-Level Input. This pin has an internal pull-up (3?A typical) when the 11 SEL1 chip is on. Use in conjunction with SEL0 to Demodulation bandwidth. Demodulation Threshold Voltage Integration Capacitor. Connect a 0.1?F capacitor from CTH pin-to-GND to 12 CTH provide a stable slicing threshold. AGC Filter Capacitor. Connect a capacitor from this pin to GND. Refer to the AGC Loop and CAGC section for 13 CAGC information on the capacitor value. Received Signal Strength Indicator. The voltage on this pin is an inversed amplified version of the voltage on 14 RSSI CAGC. Output is from a switched capacitor integrating op amp with 250O typical output impedance. 15 NC No Connect. Leave this pin floating. Reference resonator connection to the Pierce oscillator. Internal capacitance of 7pF to GND during normal 16 RO2 operation. Revision 2.0 August 19, 2015 2 MICRF220 300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch General Description Features The MICRF220 is a 300MHz to 450MHz super- ? ?110dBm sensitivity at 1kbps with 0.1% BER heterodyne, image-reject, RF receiver with automatic ? Supports bit rates up to 20kbps at 433.92MHz gain control, ASK/OOK demodulator, analog RSSI ? 25dB image-reject mixer output, and integrated squelch features. It only requires ? No IF filter required a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low- ? 60dB analog RSSI output range power, RKE, TPMS, and remote actuation applications. ? 3.0V to 3.6V supply voltage range The MICRF220 achieves -110dBm sensitivity at a bit ? 4.3mA supply current at 315MHz rate of 1kbps with 0.1% BER. Four demodulator filter ? 6.0mA supply current at 434MHz bandwidths are selectable in binary steps from 1625Hz ? 0.1?A supply current in shutdown mode to 13kHz at 433.92MHz, allowing the device to support ? Data output squelch until valid bits detected bit rates up to 20kbps. The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes ? 16-pin QSOP package (4.9mm x 6.0mm) 4.3mA of supply current at 315MHz and 6.0mA at ? -40?C to +105?C temperature range 433.92MHz. A shutdown mode reduces supply current to ? 3kV HBM ESD Rating 0.1?A typical. The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity. Datasheets and support documentation can be found on Micrel?s website at: www.micrel.com. Typical Application 433.92MHz, 1kbps Operation Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 2.0 August 19, 2015 RadioTech@micrel.com or (408) 944-0800 MICRF220 300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch General Description Features The MICRF220 is a 300MHz to 450MHz super- ? ?110dBm sensitivity at 1kbps with 0.1% BER heterodyne, image-reject, RF receiver with automatic ? Supports bit rates up to 20kbps at 433.92MHz gain control, ASK/OOK demodulator, analog RSSI ? 25dB image-reject mixer output, and integrated squelch features. It only requires ? No IF filter required a crystal and a minimum number of external components to implement. The MICRF220 is ideal for low-cost, low- ? 60dB analog RSSI output range power, RKE, TPMS, and remote actuation applications. ? 3.0V to 3.6V supply voltage range The MICRF220 achieves -110dBm sensitivity at a bit ? 4.3mA supply current at 315MHz rate of 1kbps with 0.1% BER. Four demodulator filter ? 6.0mA supply current at 434MHz bandwidths are selectable in binary steps from 1625Hz ? 0.1?A supply current in shutdown mode to 13kHz at 433.92MHz, allowing the device to support ? Data output squelch until valid bits detected bit rates up to 20kbps. The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes ? 16-pin QSOP package (4.9mm x 6.0mm) 4.3mA of supply current at 315MHz and 6.0mA at ? -40?C to +105?C temperature range 433.92MHz. A shutdown mode reduces supply current to ? 3kV HBM ESD Rating 0.1?A typical. The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity. Datasheets and support documentation can be found on Micrel?s website at: www.micrel.com. Typical Application 433.92MHz, 1kbps Operation Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com Revision 2.0 August 19, 2015 RadioTech@micrel.com or (408) 944-0800 Micrel, Inc. MICRF220 Ordering Information Part Number Temperature Range Package MICRF220AYQS ?40?C to +105?C 16-Pin QSOP Pin Configuration MICRF220AYQS Pin Description Pin Pin Pin Function Number Name Reference resonator connection to the Pierce oscillator. May also be driven by external reference signal of 1 RO1 200mVp-p to 1.5V p-p amplitude maximum. Internal capacitance of 7pF to GND during normal operation. 2 GNDRF Ground connection for ANT RF input. Connect to PCB ground plane. Antenna Input: RF Signal Input from Antenna. Internally AC coupled. It is recommended to use a matching 3 ANT network with an inductor-to-RF ground to improve ESD protection. 4 GNDRF Ground connection for ANT RF input. Connect to PCB ground plane. Positive supply connection for all chip functions. Bypass with 0.1?F capacitor located as close to the VDD pin 5 VDD as possible. Squelch Control Logic-Level Input. An internal pull-up (5?A typical) pulls the logic-input HIGH when the device 6 SQ is enabled. A logic LOW on SQ squelches, or reduces, the random activity on DO pin when there is no RF input signal. Demodulator Filter Bandwidth Select Logic-Level Input. This pin has an internal pull-up (3?A typical) when the 7 SEL0 chip is on. Use in conjunction with SEL1 to control demodulation bandwidth. Shutdown Control Logic-Level Input. A logic-level LOW enables the device. A logic-level HIGH places the 8 SHDN device in low-power shutdown mode. An internal pull-up (5?A typical) pulls the logic input HIGH. 9 GND Ground connection for all chip functions except for RF input. Connect to PCB ground plane. Data Output. Demodulated data output. A current limited CMOS output during normal operation, 25kO pull- 10 DO down is present when device is in shutdown. Demodulator Filter Bandwidth Select Logic-Level Input. This pin has an internal pull-up (3?A typical) when the 11 SEL1 chip is on. Use in conjunction with SEL0 to Demodulation bandwidth. Demodulation Threshold Voltage Integration Capacitor. Connect a 0.1?F capacitor from CTH pin-to-GND to 12 CTH provide a stable slicing threshold. AGC Filter Capacitor. Connect a capacitor from this pin to GND. Refer to the AGC Loop and CAGC section for 13 CAGC information on the capacitor value. Received Signal Strength Indicator. The voltage on this pin is an inversed amplified version of the voltage on 14 RSSI CAGC. Output is from a switched capacitor integrating op amp with 250O typical output impedance. 15 NC No Connect. Leave this pin floating. Reference resonator connection to the Pierce oscillator. Internal capacitance of 7pF to GND during normal 16 RO2 operation. Revision 2.0 August 19, 2015 2 Micrel, Inc. MICRF220 (1) (2) Absolute Maximum Ratings Operating Ratings Supply Voltage (V ) .................................................. +5V Supply Voltage (V ) ............................. +3.0V to +3.6V DD DD ).................. ?40?C to +105?C ANT, SQ, SEL0, SEL1, Ambient Temperature (T A ANT, SQ, SEL0, SEL1, SHDN DC Voltage. .................... -0.3V to V + 0.3V DD Junction Temperature ........................................... +150?C SHDN DC Voltage ................ ....-0.3V to V + 0.3V DD Lead Temperature (soldering, 10sec.) .................. +300?C Maximum Input RF Power .................................. 0 dBm Receive Modulation Duty Cycle ....................... 20~80% Storage Temperature ............................. -65?C to +150?C Maximum Receiver Input Power ......................... +10dBm Frequency Range .......................... 300MHz to 450MHz (3) ESD Rating .................................................... 3kV HBM Electrical Characteristics V = 3.3V, V = GND = 0V, SQ = open, C = 4.7?F, C = 0.1?F, unless otherwise noted. Bold values indicate DD SHDN CAGC CTH ?40?C = T = 105?C. ?Bit rate? refers to the encoded bit rate throughout this datasheet (see Note 4). A Parameter Condition Min. Typ. Max. Units Continuous Operation, f = 315MHz 4.3 RF Operating Supply Current mA Continuous Operation, f = 433.92MHz 6.0 RF Shutdown Current V = V 0.1 ?A SHDN DD Receiver 433.92MHz, V = V = 0V, BER = 1% -112.5 SEL1 SEL0 433.92MHz, V = V = 0V, SEL1 SEL0 -110 BER = 0.1% Conducted Receiver dBm 315MHz, V = 0V, V = 3.3V, SEL1 SEL0 Sensitivity@1kbps (Note 5) -112.5 BER = 1% 315MHz, V = 0V, V = 3.3V, SEL1 SEL0 -110 BER = 0.1% Image Rejection f = f ? 2f 25 dB IMAGE RF IF f = 315MHz 0.85 RF IF Center Frequency (f ) MHz IF f = 433.92MHz 1.18 RF f = 315MHz 235 RF -3dB IF Bandwidth kHz f = 433.92MHz 330 RF 1.15 -40dBm RF input level CAGC Voltage Range V -100dBm RF input level 1.55 Reference Oscillator f = 315 MHz 9.81713 RF Reference Oscillator MHz Frequency f = 433.92 MHz 13.52313 RF Reference Buffer Input RO1 when driven externally 1.6 k? Impedance Reference Oscillator Bias RO2 1.15 V Voltage Reference Oscillator Input External input, AC couple to RO1 0.2 1.5 V P-P Range Reference Oscillator Source V = 0V 300 ?A RO1 Current Revision 2.0 August 19, 2015 3

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