Product Information

SY88149NDLMG-TR

Product Image X-ON

SP Amp Limiting Post Amplifier Single 3.6V 16-Pin QFN EP T/R
Manufacturer: MICROCHIP


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From 10.8562

889 - Global Stock
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889 - Global Stock


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SY88149NDLMG-TR
MICROCHIP

1 : $ 12.1286
10 : $ 11.4549
25 : $ 11.2663
50 : $ 11.0777
100 : $ 10.8562

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960 - Global Stock


Ships to you between Wed. 09 Dec to Fri. 11 Dec
Calender

MOQ : 1
Multiples : 1

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SY88149NDLMG-TR
MICROCHIP

1 : $ 17.2679
25 : $ 15.0343
100 : $ 13.68

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Manufacturer
MICROCHIP
Product Category
Limiting Amplifiers
Packaging
Tape And Reel
Hts
8542.33.00.01
Pcb Changed
16
Package Height
0.85(Max)
Package Width
3
Package Length
3
Mounting
Surface Mount
Type
Limiting Post Amplifier
Number Of Elements Per Chip
1
Number Of Channels Per Chip
1
Maximum Voltage Gain Range Db
35 to 50
Maximum Voltage Gain Db
48 (typ)
Typical Output Current Ma
100
Maximum Input Offset Voltage Mv
1@3.6 V @- 40c to 85c
Maximum Operating Supply Voltage V
3.6
Maximum Supply Voltage Range V
<5
Minimum Single Supply Voltage V
3
Typical Single Supply Voltage V
3.3
Maximum Single Supply Voltage V
3.6
Minimum Operating Temperature °C
- 40
Maximum Operating Temperature °C
85
Supplier Temperature Grade
industrial
Power Supply Type
single
Pin Count
16
Supplier Package
Qfn Ep
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SY88149NDL 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing Features General Description ? <5ns SD Assert (LOS Deassert) time The SY88149NDL is a high-sensitivity, burst-mode ? Option to AUTO RESET or manual RESET LOS/SD capable limiting post amplifier designed for Optical Line output Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON ? Selectable LOS/SD output option standards by providing ultra-fast Loss-of-Signal (LOS) or ? High-sensitivity LOS/SD signal detect Signal-Detect (SD) output. Auto Reset and Manual Reset ? Low-noise LVPECL data outputs options are provided to control LOS/SD output timing. For ? Squelching function to maintain output stability increased flexibility, this device also includes an option to select between LOS or SD output. The device can be ? Programmable LOS/SD level set (LOS/SD ) LVL connected to burst-mode capable transimpedance ? 5mVpp input sensitivity amplifiers (TIAs) using AC or DC coupling. ? 1.25Gbps operation The SY88149NDL generates a high-gain LOS or SD ? Single 3.3V power supply LVTTL output. A programmable LOS/SD level set pin ? ? Available in a 16-pin (3mm ? 3mm) QFN package (LOS/SD ) sets the sensitivity of the input amplitude LVL detection. When LOS/SD SEL pin is left open or tied to Applications Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by ? GE-PON/GPON OLT LOS/SD and de-asserts low otherwise. When LOS/SD LVL ? Gigabit Ethernet SEL pin is set low or tied to GND, JAM is active low, LOS ? Fibre Channel is selected and asserts low if the input amplitude rises ? OC-3/12/24 SONET/SDH above the threshold sets by LOS/SD and de-asserts LVL high otherwise. The LOS/SD output can be fed back to the ? High-gain line driver and line receiver JAM input to maintain output stability under an invalid ? Low-gain TIA interface signal conditions. Typically, 4?5 dB SD hysteresis is provided to prevent chattering. Markets The SY88149NDL also features a selectable proprietary ? FTTH PON Noise Discriminator that aids by filtering out input signals ? Datacom/Telecom that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD ? Optical transceiver Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power o o supply, over temperatures ranging from ?40 C to +85 C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs. All support documentation can be found on Micrel?s web site at: www.micrel.com. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-020712-A February 2012 hbwhelp@micrel.com or (408) 955-1690 SY88149NDL 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing Features General Description ? <5ns SD Assert (LOS Deassert) time The SY88149NDL is a high-sensitivity, burst-mode ? Option to AUTO RESET or manual RESET LOS/SD capable limiting post amplifier designed for Optical Line output Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON ? Selectable LOS/SD output option standards by providing ultra-fast Loss-of-Signal (LOS) or ? High-sensitivity LOS/SD signal detect Signal-Detect (SD) output. Auto Reset and Manual Reset ? Low-noise LVPECL data outputs options are provided to control LOS/SD output timing. For ? Squelching function to maintain output stability increased flexibility, this device also includes an option to select between LOS or SD output. The device can be ? Programmable LOS/SD level set (LOS/SD ) LVL connected to burst-mode capable transimpedance ? 5mVpp input sensitivity amplifiers (TIAs) using AC or DC coupling. ? 1.25Gbps operation The SY88149NDL generates a high-gain LOS or SD ? Single 3.3V power supply LVTTL output. A programmable LOS/SD level set pin ? ? Available in a 16-pin (3mm ? 3mm) QFN package (LOS/SD ) sets the sensitivity of the input amplitude LVL detection. When LOS/SD SEL pin is left open or tied to Applications Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by ? GE-PON/GPON OLT LOS/SD and de-asserts low otherwise. When LOS/SD LVL ? Gigabit Ethernet SEL pin is set low or tied to GND, JAM is active low, LOS ? Fibre Channel is selected and asserts low if the input amplitude rises ? OC-3/12/24 SONET/SDH above the threshold sets by LOS/SD and de-asserts LVL high otherwise. The LOS/SD output can be fed back to the ? High-gain line driver and line receiver JAM input to maintain output stability under an invalid ? Low-gain TIA interface signal conditions. Typically, 4?5 dB SD hysteresis is provided to prevent chattering. Markets The SY88149NDL also features a selectable proprietary ? FTTH PON Noise Discriminator that aids by filtering out input signals ? Datacom/Telecom that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD ? Optical transceiver Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power o o supply, over temperatures ranging from ?40 C to +85 C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs. All support documentation can be found on Micrel?s web site at: www.micrel.com. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-020712-A February 2012 hbwhelp@micrel.com or (408) 955-1690 Micrel, Inc. SY88149NDL Ordering Information Part Number Package Type Operating Range Package Marking SY88149NDLMG Lead-Free QFN-16 Industrial 149N with Pb-Free bar-line indicator (1) SY88149NDLMG TR Lead-Free QFN-16 Industrial 149N with Pb-Free bar-line indicator Notes: 1. Tape and Reel. Pin Configuration ? 16-Pin QFN (QFN-16) Truth Table for SD/LOS Select and Noise Discriminator function LOS/SDSEL PIN LOS/SD SELECTION NOISE DISCRIMINATOR INPUT TO JAM OUTPUTS 0? to VCC SD Enabled HIGH Enabled 0? to VCC SD Enabled LOW Disabled 16K? to VCC SD Disabled HIGH Enabled 16K? to VCC SD Disabled LOW Disabled 16K? to GND LOS Disabled HIGH Disabled 16K? to GND LOS Disabled LOW Enabled 0? to GND LOS Enabled HIGH Disabled 0? to GND LOS Enabled LOW Enabled M9999-020712-A February 2012 2 hbwhelp@micrel.com or (408) 955-1690 SY88149NDL 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing Features General Description ? <5ns SD Assert (LOS Deassert) time The SY88149NDL is a high-sensitivity, burst-mode ? Option to AUTO RESET or manual RESET LOS/SD capable limiting post amplifier designed for Optical Line output Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON ? Selectable LOS/SD output option standards by providing ultra-fast Loss-of-Signal (LOS) or ? High-sensitivity LOS/SD signal detect Signal-Detect (SD) output. Auto Reset and Manual Reset ? Low-noise LVPECL data outputs options are provided to control LOS/SD output timing. For ? Squelching function to maintain output stability increased flexibility, this device also includes an option to select between LOS or SD output. The device can be ? Programmable LOS/SD level set (LOS/SD ) LVL connected to burst-mode capable transimpedance ? 5mVpp input sensitivity amplifiers (TIAs) using AC or DC coupling. ? 1.25Gbps operation The SY88149NDL generates a high-gain LOS or SD ? Single 3.3V power supply LVTTL output. A programmable LOS/SD level set pin ? ? Available in a 16-pin (3mm ? 3mm) QFN package (LOS/SD ) sets the sensitivity of the input amplitude LVL detection. When LOS/SD SEL pin is left open or tied to Applications Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by ? GE-PON/GPON OLT LOS/SD and de-asserts low otherwise. When LOS/SD LVL ? Gigabit Ethernet SEL pin is set low or tied to GND, JAM is active low, LOS ? Fibre Channel is selected and asserts low if the input amplitude rises ? OC-3/12/24 SONET/SDH above the threshold sets by LOS/SD and de-asserts LVL high otherwise. The LOS/SD output can be fed back to the ? High-gain line driver and line receiver JAM input to maintain output stability under an invalid ? Low-gain TIA interface signal conditions. Typically, 4?5 dB SD hysteresis is provided to prevent chattering. Markets The SY88149NDL also features a selectable proprietary ? FTTH PON Noise Discriminator that aids by filtering out input signals ? Datacom/Telecom that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD ? Optical transceiver Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power o o supply, over temperatures ranging from ?40 C to +85 C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs. All support documentation can be found on Micrel?s web site at: www.micrel.com. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-020712-A February 2012 hbwhelp@micrel.com or (408) 955-1690 SY88149NDL 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing Features General Description ? <5ns SD Assert (LOS Deassert) time The SY88149NDL is a high-sensitivity, burst-mode ? Option to AUTO RESET or manual RESET LOS/SD capable limiting post amplifier designed for Optical Line output Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON ? Selectable LOS/SD output option standards by providing ultra-fast Loss-of-Signal (LOS) or ? High-sensitivity LOS/SD signal detect Signal-Detect (SD) output. Auto Reset and Manual Reset ? Low-noise LVPECL data outputs options are provided to control LOS/SD output timing. For ? Squelching function to maintain output stability increased flexibility, this device also includes an option to select between LOS or SD output. The device can be ? Programmable LOS/SD level set (LOS/SD ) LVL connected to burst-mode capable transimpedance ? 5mVpp input sensitivity amplifiers (TIAs) using AC or DC coupling. ? 1.25Gbps operation The SY88149NDL generates a high-gain LOS or SD ? Single 3.3V power supply LVTTL output. A programmable LOS/SD level set pin ? ? Available in a 16-pin (3mm ? 3mm) QFN package (LOS/SD ) sets the sensitivity of the input amplitude LVL detection. When LOS/SD SEL pin is left open or tied to Applications Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by ? GE-PON/GPON OLT LOS/SD and de-asserts low otherwise. When LOS/SD LVL ? Gigabit Ethernet SEL pin is set low or tied to GND, JAM is active low, LOS ? Fibre Channel is selected and asserts low if the input amplitude rises ? OC-3/12/24 SONET/SDH above the threshold sets by LOS/SD and de-asserts LVL high otherwise. The LOS/SD output can be fed back to the ? High-gain line driver and line receiver JAM input to maintain output stability under an invalid ? Low-gain TIA interface signal conditions. Typically, 4?5 dB SD hysteresis is provided to prevent chattering. Markets The SY88149NDL also features a selectable proprietary ? FTTH PON Noise Discriminator that aids by filtering out input signals ? Datacom/Telecom that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD ? Optical transceiver Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power o o supply, over temperatures ranging from ?40 C to +85 C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs. All support documentation can be found on Micrel?s web site at: www.micrel.com. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-020712-A February 2012 hbwhelp@micrel.com or (408) 955-1690 Micrel, Inc. SY88149NDL Ordering Information Part Number Package Type Operating Range Package Marking SY88149NDLMG Lead-Free QFN-16 Industrial 149N with Pb-Free bar-line indicator (1) SY88149NDLMG TR Lead-Free QFN-16 Industrial 149N with Pb-Free bar-line indicator Notes: 1. Tape and Reel. Pin Configuration ? 16-Pin QFN (QFN-16) Truth Table for SD/LOS Select and Noise Discriminator function LOS/SDSEL PIN LOS/SD SELECTION NOISE DISCRIMINATOR INPUT TO JAM OUTPUTS 0? to VCC SD Enabled HIGH Enabled 0? to VCC SD Enabled LOW Disabled 16K? to VCC SD Disabled HIGH Enabled 16K? to VCC SD Disabled LOW Disabled 16K? to GND LOS Disabled HIGH Disabled 16K? to GND LOS Disabled LOW Enabled 0? to GND LOS Enabled HIGH Disabled 0? to GND LOS Enabled LOW Enabled M9999-020712-A February 2012 2 hbwhelp@micrel.com or (408) 955-1690 Micrel, Inc. SY88149NDL Pin Description Pin Number Pin Name Pin Function 1, 4 DIN, /DIN Differential Data Inputs. If AC-coupled, terminate each pin to V with 50 ?. REF 2 VREF Reference Voltage Output. Typically V ? 1.3V. CC Device Ground. Exposed pad must be soldered (or equivalent) to the same potential as the 3, 11, 8 GND ground pins. LVTTL Input. This pin is internally connected to a 25k? pull-up resistor and defaults to HIGH. When this pin is LOW or tied to ground, the /AUTO RESET function is enabled and SD deasserts 10 /AUTO RESET or LOS asserts within 120ns (typical) after the last high-to-low transition of the burst input. When this pin is left floating or tied high, the AUTO RESET function is disabled and the SD deassert or LOS assert must be forced by using the manual RESET function. Positive power supply. Bypass with 0.1uF | | 0.01uF low ESR capacitors. 0.01uF capacitors 5, 16 VCC should be as close as possible to VCC pins. LVTTL Input. Apply a high-level signal ( >2V) to this pin to reset the SD deassert time or LOS assert within 5ns. RESET defaults to LOW if left floating. If the /AUTO RESET function is not 6 RESET used, this RESET function needs to be used to quickly deassert the SD or assert LOS. This pin is internally connected to a 25k? pull-down resistor and defaults to LOW. LVTTL Output. Signal detect (SD) asserts high when the data input amplitude rises above the threshold sets by SD . Conversely, loss-of-signal (LOS) deasserts low when the data input 7 SD/LOS LVL amplitude rises above the threshold set by LOS/SD . LVL LVPECL Outputs. When JAM disables the device, output DOUT is forced to logic LOW and 12, 9 DOUT, /DOUT output /DOUT is forced to logic HIGH. Allows the user to select between whether LOS or SD is outputted on the LOS/SD pin. Also controls the polarity of the JAM input. When SD is selected, JAM is active HIGH and LOS/SD 13 LOS/SD SEL (Pin 7) operates as signal detect. Conversely, when LOS is selected, JAM is active LOW and LOS/SD operates as loss-of-signal. This pin is internally connected to a 25k? pull-up resistor and defaults to HIGH (SD output selected). Voltage Input. Sets the LOS/SD level. A resistor from this pin to V sets the threshold for the CC 14 LOS/SDLVL data input amplitude at which LOS/SD will be asserted. LVTTL Input. This JAM input acts as a squelch function and switches its polarity depending on LOS/SD SEL status. When LOS is selected, this pin is active LOW. When SD is selected, this 15 JAM pin is Active HIGH. To create a squelch function, connect JAM to LOS/SD. When JAM disables the device, output Q is forced to logic LOW and output /Q is forced to logic HIGH. Note that this input is internally connected to a 25k? pull-up resistor. M9999-020712-A February 2012 3 hbwhelp@micrel.com or (408) 955-1690 SY88149NDL 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing Features General Description ? <5ns SD Assert (LOS Deassert) time The SY88149NDL is a high-sensitivity, burst-mode ? Option to AUTO RESET or manual RESET LOS/SD capable limiting post amplifier designed for Optical Line output Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON ? Selectable LOS/SD output option standards by providing ultra-fast Loss-of-Signal (LOS) or ? High-sensitivity LOS/SD signal detect Signal-Detect (SD) output. Auto Reset and Manual Reset ? Low-noise LVPECL data outputs options are provided to control LOS/SD output timing. For ? Squelching function to maintain output stability increased flexibility, this device also includes an option to select between LOS or SD output. The device can be ? Programmable LOS/SD level set (LOS/SD ) LVL connected to burst-mode capable transimpedance ? 5mVpp input sensitivity amplifiers (TIAs) using AC or DC coupling. ? 1.25Gbps operation The SY88149NDL generates a high-gain LOS or SD ? Single 3.3V power supply LVTTL output. A programmable LOS/SD level set pin ? ? Available in a 16-pin (3mm ? 3mm) QFN package (LOS/SD ) sets the sensitivity of the input amplitude LVL detection. When LOS/SD SEL pin is left open or tied to Applications Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by ? GE-PON/GPON OLT LOS/SD and de-asserts low otherwise. When LOS/SD LVL ? Gigabit Ethernet SEL pin is set low or tied to GND, JAM is active low, LOS ? Fibre Channel is selected and asserts low if the input amplitude rises ? OC-3/12/24 SONET/SDH above the threshold sets by LOS/SD and de-asserts LVL high otherwise. The LOS/SD output can be fed back to the ? High-gain line driver and line receiver JAM input to maintain output stability under an invalid ? Low-gain TIA interface signal conditions. Typically, 4?5 dB SD hysteresis is provided to prevent chattering. Markets The SY88149NDL also features a selectable proprietary ? FTTH PON Noise Discriminator that aids by filtering out input signals ? Datacom/Telecom that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD ? Optical transceiver Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power o o supply, over temperatures ranging from ?40 C to +85 C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs. All support documentation can be found on Micrel?s web site at: www.micrel.com. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-020712-A February 2012 hbwhelp@micrel.com or (408) 955-1690 SY88149NDL 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing Features General Description ? <5ns SD Assert (LOS Deassert) time The SY88149NDL is a high-sensitivity, burst-mode ? Option to AUTO RESET or manual RESET LOS/SD capable limiting post amplifier designed for Optical Line output Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON ? Selectable LOS/SD output option standards by providing ultra-fast Loss-of-Signal (LOS) or ? High-sensitivity LOS/SD signal detect Signal-Detect (SD) output. Auto Reset and Manual Reset ? Low-noise LVPECL data outputs options are provided to control LOS/SD output timing. For ? Squelching function to maintain output stability increased flexibility, this device also includes an option to select between LOS or SD output. The device can be ? Programmable LOS/SD level set (LOS/SD ) LVL connected to burst-mode capable transimpedance ? 5mVpp input sensitivity amplifiers (TIAs) using AC or DC coupling. ? 1.25Gbps operation The SY88149NDL generates a high-gain LOS or SD ? Single 3.3V power supply LVTTL output. A programmable LOS/SD level set pin ? ? Available in a 16-pin (3mm ? 3mm) QFN package (LOS/SD ) sets the sensitivity of the input amplitude LVL detection. When LOS/SD SEL pin is left open or tied to Applications Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by ? GE-PON/GPON OLT LOS/SD and de-asserts low otherwise. When LOS/SD LVL ? Gigabit Ethernet SEL pin is set low or tied to GND, JAM is active low, LOS ? Fibre Channel is selected and asserts low if the input amplitude rises ? OC-3/12/24 SONET/SDH above the threshold sets by LOS/SD and de-asserts LVL high otherwise. The LOS/SD output can be fed back to the ? High-gain line driver and line receiver JAM input to maintain output stability under an invalid ? Low-gain TIA interface signal conditions. Typically, 4?5 dB SD hysteresis is provided to prevent chattering. Markets The SY88149NDL also features a selectable proprietary ? FTTH PON Noise Discriminator that aids by filtering out input signals ? Datacom/Telecom that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD ? Optical transceiver Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power o o supply, over temperatures ranging from ?40 C to +85 C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs. All support documentation can be found on Micrel?s web site at: www.micrel.com. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-020712-A February 2012 hbwhelp@micrel.com or (408) 955-1690 Micrel, Inc. SY88149NDL Ordering Information Part Number Package Type Operating Range Package Marking SY88149NDLMG Lead-Free QFN-16 Industrial 149N with Pb-Free bar-line indicator (1) SY88149NDLMG TR Lead-Free QFN-16 Industrial 149N with Pb-Free bar-line indicator Notes: 1. Tape and Reel. Pin Configuration ? 16-Pin QFN (QFN-16) Truth Table for SD/LOS Select and Noise Discriminator function LOS/SDSEL PIN LOS/SD SELECTION NOISE DISCRIMINATOR INPUT TO JAM OUTPUTS 0? to VCC SD Enabled HIGH Enabled 0? to VCC SD Enabled LOW Disabled 16K? to VCC SD Disabled HIGH Enabled 16K? to VCC SD Disabled LOW Disabled 16K? to GND LOS Disabled HIGH Disabled 16K? to GND LOS Disabled LOW Enabled 0? to GND LOS Enabled HIGH Disabled 0? to GND LOS Enabled LOW Enabled M9999-020712-A February 2012 2 hbwhelp@micrel.com or (408) 955-1690 SY88149NDL 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing Features General Description ? <5ns SD Assert (LOS Deassert) time The SY88149NDL is a high-sensitivity, burst-mode ? Option to AUTO RESET or manual RESET LOS/SD capable limiting post amplifier designed for Optical Line output Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON ? Selectable LOS/SD output option standards by providing ultra-fast Loss-of-Signal (LOS) or ? High-sensitivity LOS/SD signal detect Signal-Detect (SD) output. Auto Reset and Manual Reset ? Low-noise LVPECL data outputs options are provided to control LOS/SD output timing. For ? Squelching function to maintain output stability increased flexibility, this device also includes an option to select between LOS or SD output. The device can be ? Programmable LOS/SD level set (LOS/SD ) LVL connected to burst-mode capable transimpedance ? 5mVpp input sensitivity amplifiers (TIAs) using AC or DC coupling. ? 1.25Gbps operation The SY88149NDL generates a high-gain LOS or SD ? Single 3.3V power supply LVTTL output. A programmable LOS/SD level set pin ? ? Available in a 16-pin (3mm ? 3mm) QFN package (LOS/SD ) sets the sensitivity of the input amplitude LVL detection. When LOS/SD SEL pin is left open or tied to Applications Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by ? GE-PON/GPON OLT LOS/SD and de-asserts low otherwise. When LOS/SD LVL ? Gigabit Ethernet SEL pin is set low or tied to GND, JAM is active low, LOS ? Fibre Channel is selected and asserts low if the input amplitude rises ? OC-3/12/24 SONET/SDH above the threshold sets by LOS/SD and de-asserts LVL high otherwise. The LOS/SD output can be fed back to the ? High-gain line driver and line receiver JAM input to maintain output stability under an invalid ? Low-gain TIA interface signal conditions. Typically, 4?5 dB SD hysteresis is provided to prevent chattering. Markets The SY88149NDL also features a selectable proprietary ? FTTH PON Noise Discriminator that aids by filtering out input signals ? Datacom/Telecom that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD ? Optical transceiver Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power o o supply, over temperatures ranging from ?40 C to +85 C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs. All support documentation can be found on Micrel?s web site at: www.micrel.com. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-020712-A February 2012 hbwhelp@micrel.com or (408) 955-1690 SY88149NDL 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing Features General Description ? <5ns SD Assert (LOS Deassert) time The SY88149NDL is a high-sensitivity, burst-mode ? Option to AUTO RESET or manual RESET LOS/SD capable limiting post amplifier designed for Optical Line output Terminal (OLT) receiver applications. The SY88149NDL satisfies the strict timing restrictions of the GPON ? Selectable LOS/SD output option standards by providing ultra-fast Loss-of-Signal (LOS) or ? High-sensitivity LOS/SD signal detect Signal-Detect (SD) output. Auto Reset and Manual Reset ? Low-noise LVPECL data outputs options are provided to control LOS/SD output timing. For ? Squelching function to maintain output stability increased flexibility, this device also includes an option to select between LOS or SD output. The device can be ? Programmable LOS/SD level set (LOS/SD ) LVL connected to burst-mode capable transimpedance ? 5mVpp input sensitivity amplifiers (TIAs) using AC or DC coupling. ? 1.25Gbps operation The SY88149NDL generates a high-gain LOS or SD ? Single 3.3V power supply LVTTL output. A programmable LOS/SD level set pin ? ? Available in a 16-pin (3mm ? 3mm) QFN package (LOS/SD ) sets the sensitivity of the input amplitude LVL detection. When LOS/SD SEL pin is left open or tied to Applications Vcc, JAM is active high, SD is selected and asserts high if the input amplitude rises above the threshold sets by ? GE-PON/GPON OLT LOS/SD and de-asserts low otherwise. When LOS/SD LVL ? Gigabit Ethernet SEL pin is set low or tied to GND, JAM is active low, LOS ? Fibre Channel is selected and asserts low if the input amplitude rises ? OC-3/12/24 SONET/SDH above the threshold sets by LOS/SD and de-asserts LVL high otherwise. The LOS/SD output can be fed back to the ? High-gain line driver and line receiver JAM input to maintain output stability under an invalid ? Low-gain TIA interface signal conditions. Typically, 4?5 dB SD hysteresis is provided to prevent chattering. Markets The SY88149NDL also features a selectable proprietary ? FTTH PON Noise Discriminator that aids by filtering out input signals ? Datacom/Telecom that do not qualify as a 1.25Gbps GPON preamble signal in the initial startup phase. This feature minimizes false SD ? Optical transceiver Asserts that can be triggered by random noise. The SY88149NDL operates from a single +3.3V power o o supply, over temperatures ranging from ?40 C to +85 C. With its wide bandwidth and high gain, signals up to 1.25Gbps and as small as 5mVpp can be amplified to drive devices with LVPECL inputs. All support documentation can be found on Micrel?s web site at: www.micrel.com. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-020712-A February 2012 hbwhelp@micrel.com or (408) 955-1690 Micrel, Inc. SY88149NDL Ordering Information Part Number Package Type Operating Range Package Marking SY88149NDLMG Lead-Free QFN-16 Industrial 149N with Pb-Free bar-line indicator (1) SY88149NDLMG TR Lead-Free QFN-16 Industrial 149N with Pb-Free bar-line indicator Notes: 1. Tape and Reel. Pin Configuration ? 16-Pin QFN (QFN-16) Truth Table for SD/LOS Select and Noise Discriminator function LOS/SDSEL PIN LOS/SD SELECTION NOISE DISCRIMINATOR INPUT TO JAM OUTPUTS 0? to VCC SD Enabled HIGH Enabled 0? to VCC SD Enabled LOW Disabled 16K? to VCC SD Disabled HIGH Enabled 16K? to VCC SD Disabled LOW Disabled 16K? to GND LOS Disabled HIGH Disabled 16K? to GND LOS Disabled LOW Enabled 0? to GND LOS Enabled HIGH Disabled 0? to GND LOS Enabled LOW Enabled M9999-020712-A February 2012 2 hbwhelp@micrel.com or (408) 955-1690 Micrel, Inc. SY88149NDL Pin Description Pin Number Pin Name Pin Function 1, 4 DIN, /DIN Differential Data Inputs. If AC-coupled, terminate each pin to V with 50 ?. REF 2 VREF Reference Voltage Output. Typically V ? 1.3V. CC Device Ground. Exposed pad must be soldered (or equivalent) to the same potential as the 3, 11, 8 GND ground pins. LVTTL Input. This pin is internally connected to a 25k? pull-up resistor and defaults to HIGH. When this pin is LOW or tied to ground, the /AUTO RESET function is enabled and SD deasserts 10 /AUTO RESET or LOS asserts within 120ns (typical) after the last high-to-low transition of the burst input. When this pin is left floating or tied high, the AUTO RESET function is disabled and the SD deassert or LOS assert must be forced by using the manual RESET function. Positive power supply. Bypass with 0.1uF | | 0.01uF low ESR capacitors. 0.01uF capacitors 5, 16 VCC should be as close as possible to VCC pins. LVTTL Input. Apply a high-level signal ( >2V) to this pin to reset the SD deassert time or LOS assert within 5ns. RESET defaults to LOW if left floating. If the /AUTO RESET function is not 6 RESET used, this RESET function needs to be used to quickly deassert the SD or assert LOS. This pin is internally connected to a 25k? pull-down resistor and defaults to LOW. LVTTL Output. Signal detect (SD) asserts high when the data input amplitude rises above the threshold sets by SD . Conversely, loss-of-signal (LOS) deasserts low when the data input 7 SD/LOS LVL amplitude rises above the threshold set by LOS/SD . LVL LVPECL Outputs. When JAM disables the device, output DOUT is forced to logic LOW and 12, 9 DOUT, /DOUT output /DOUT is forced to logic HIGH. Allows the user to select between whether LOS or SD is outputted on the LOS/SD pin. Also controls the polarity of the JAM input. When SD is selected, JAM is active HIGH and LOS/SD 13 LOS/SD SEL (Pin 7) operates as signal detect. Conversely, when LOS is selected, JAM is active LOW and LOS/SD operates as loss-of-signal. This pin is internally connected to a 25k? pull-up resistor and defaults to HIGH (SD output selected). Voltage Input. Sets the LOS/SD level. A resistor from this pin to V sets the threshold for the CC 14 LOS/SDLVL data input amplitude at which LOS/SD will be asserted. LVTTL Input. This JAM input acts as a squelch function and switches its polarity depending on LOS/SD SEL status. When LOS is selected, this pin is active LOW. When SD is selected, this 15 JAM pin is Active HIGH. To create a squelch function, connect JAM to LOS/SD. When JAM disables the device, output Q is forced to logic LOW and output /Q is forced to logic HIGH. Note that this input is internally connected to a 25k? pull-up resistor. M9999-020712-A February 2012 3 hbwhelp@micrel.com or (408) 955-1690

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