SY88432LMG-TR Microchip

SY88432L 4.25 Gbps Transceiver with Integrated FP/DFP Laser Diode Driver and Limiting Post Amplifier General Description Features Multi-rate operation up to 4.25Gbps The SY88432L is a low power transceiver device that Single, wide range power supply: 3.3V 10% integrates a 4.25Gbps FP/DFB laser diode driver with a wide-sensitivity limiting post amplifier. This low power Industrial temp range: -40C to +85C device is designed for use in fiber-optic optical modules MIC3003 compatible for multi-rate applications up to 4.25Gbps. The SY88432L transmitter section can output up to Transmitter FP/DFP Laser Diode Driver 60mA of modulation current with fast rise and fall times Modulation current up to 60mA and is designed to be AC-coupled to the laser. The - AC coupled laser diode modulation transmitter output stage incorporates a transmit disable feature and integrated 50 input impedance referenced - Voltage controlled modulation current to V . CC Rise/Fall times 65ps (typical) The receiver sections limiting post amplifier connects to TX Disable with internal 75k pull down resistor a typical trans-impedance amplifier (TIA) to amplify the Integrated 50 input impedance to V CC incoming weak signal from the ROSA and outputs normalized received data in CML format at the output. Receiver Limiting Post Amplifier The receiver offers a wide LOS (Loss Of Signal) Assert Wide differential input range (10mVpp 1800mVpp) range between 8mV to 40mV differential. A PP PP programmable loss-of-signal level set pin (LOSLVL) sets Programmable LOS level (LOSLVL) sensitivity the sensitivity of the input amplitude detection. The LOS Wide LOS Assert range (8mVpp 40mVpp) or SD (signal-detect) is user selectable and the LOS/SD - With 3.5dB typical electrical hysteresis signal can be fed back to the JAM input to implement Selectable LOS or SD output the SQUELCH function that maintains output stability TTL compatible JAM input with internal pull up under a loss-of-signal condition. The receiver input should be AC-coupled. Low-noise CML data outputs with integrated 50 termination impedance The SY88432L interfaces with Micrels highly advanced optical module controller MIC3003 as an easy-to-use - Rise/Fall times 60ps (typical) chipset solution for CSFP/SFP/CSFF/SFF optical Low-noise CML data inputs with integrated 50 module applications. The MIC3003 allows for both termination impedance to internal reference V REF modulation and bias current control, with automatic power control (APC) and temperature compensation. Applications The SY88432L operates on a single 3.3V power supply and is available in a 24 lead, 4x4mm QFN package. Gigabit Ethernet Fibre Channel 1FC, 2FC, 4FC All support documentation can be found on Micrels web SONET OC3/12/24/48 and with FEC site at: www.micrel.com. SDH STM1/4/8/16 and with FEC Markets Datacom / Telecom / Storage Compact SFP/SFF Optical transceiver SFP/SFF Optical transceiver Wireless backhaul Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. SY88432L Ordering Information Operating Part Number Package Type Package Marking Lead Finish Range SY88432LMG 4mm x 4mm QFN-24 Industrial 88432L with Pb-Free bar line indicator NiPdAu Pb-Free (1) SY88432LMG TR 4mm x 4mm QFN-24 Industrial 88432L with Pb-Free bar line indicator NiPdAu Pb-Free Note: 1. TR = Tape and Reel (1kpcs) (2) Typical Application: Single-ended AC-coupled Configuration R LOSLVL 50 Transmission Lines TIA V = 3.3V CC V = 3.3V CC 24 23 22 21 20 19 GND T JAM 1 18 3.3V VCC T 2 17 LOS/SD VCC = 3.3V VCC T VCC R SY88432LMG 3 16 DATA OUT- MOD+ RXOUT- 4.25Gbps 4 15 Transceiver 50 Lines MOD- RXOUT+ 5 14 DATA OUT+ VCC R VCC T 6 13 7 8 9 10 11 12 V = 3.3V CC DATA IN+ 23 24 22 21 20 19 FB VDD D 1 18 50 Transmission Lines VMPD 2 17 QGPO DATA IN- GND A MIC3003LMG GND D 3 16 TX DISABLE 3.3V VDD A Fiber Optic 4 15 RS0 Module Controller VILD- 5 14 VIN/INT VILD+ CLK 6 13 7 8 9 10 11 12 Serial CLK Serial DATA Note: 2. For reference only. Please refer to the Evaluation or Reference board schematics for more complete information. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000