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SY88432L

Status: In Production

Features:

  • Multi-rate operation up to 4.25Gbps
  • Single, wide range power supply: 3.3V ±10%
  • Industrial temp range: -40°C to +85°C
  • MIC3003 compatible
  • Transmitter – FP/DFP Laser Diode Driver
  • Modulation current up to 60mA
  • AC coupled laser diode modulation
  • Voltage controlled modulation current
  • Rise/Fall times 65ps (typical)
  • TX Disable with internal 75kΩ pull down resistor
  • Integrated 50&Omega input impedance to VCC
  • Receiver – Limiting Post Amplifier
  • Wide differential input range (5mVpp – 1800mVpp)
  • Wide LOS range (8mVpp – 80mVpp) with 3.5dB typical electrical hysteresis
  • Programmable LOS level (LOSLVL) sensitivity
  • Selectable LOS or SD output
  • TTL compatible JAM input with internal pull up
  • Low-noise CML data outputs with integrated 50Ω termination impedance
  • Rise/Fall times 60ps (typical)
  • Low-noise CML data inputs with integrated 50Ω termination impedance to internal reference VREF
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The SY88432L is a low power transceiver device that integrates a 4.25Gbps FP/DFB laser diode driver with a wide-sensitivity limiting post amplifier. This low power device is designed for use in fiber-optic optical modules for multi-rate applications up to 4.25Gbps. The SY88432L transmitter section can output up to 60mA of modulation current with fast rise and fall times and is designed to be AC-coupled to the laser. The transmitter output stage incorporates a transmit disable feature and integrated 50Ω input impedance referenced to VCC. The receiver section’s limiting post amplifier connects to a typical trans-impedance amplifier (TIA) to amplify the incoming weak signal from the ROSA and outputs normalized received data in CML format at the output. The receiver offers a wide LOS (loss of signal) range and is able to detect input signals of as low as 5mVpp and as high as 80mVpp. A programmable loss-of-signal level set pin (LOSLVL) sets the sensitivity of the input amplitude detection. The LOS or SD (signal-detect) is user selectable and the LOS/SD signal can be fed back to the JAM input to implement the SQUELCH function that maintains output stability under a loss-of-signal condition. The receiver input should be AC-coupled. The SY88432L interfaces with Micrel’s highly advanced optical module controller MIC3003 as an easy-to-use chipset solution for CSFP/SFP/CSFF/SFF optical module applications. The MIC3003 allows for both modulation and bias current control, with automatic power control (APC) and temperature compensation. The SY88432L operates on a single 3.3V power supply and is available in a 24 lead, 4mm x 4mm QFN package.

Additional Features
  • Multi-rate operation up to 4.25Gbps
  • Single, wide range power supply: 3.3V ±10%
  • Industrial temp range: -40°C to +85°C
  • MIC3003 compatible
  • Transmitter – FP/DFP Laser Diode Driver
    • Modulation current up to 60mA
    • AC coupled laser diode modulation
    • Voltage controlled modulation current
    • Rise/Fall times 65ps (typical)
    • TX Disable with internal 75kΩ pull down resistor
    • Integrated 50&Omega input impedance to VCC
  • Receiver – Limiting Post Amplifier
    • Wide differential input range (5mVpp – 1800mVpp)
    • Wide LOS range (8mVpp – 80mVpp) with 3.5dB typical electrical hysteresis
    • Programmable LOS level (LOSLVL) sensitivity
    • Selectable LOS or SD output
    • TTL compatible JAM input with internal pull up
    • Low-noise CML data outputs with integrated 50Ω termination impedance
    • Rise/Fall times 60ps (typical)
    • Low-noise CML data inputs with integrated 50Ω termination impedance to internal reference VREF
Parametrics
Name
Value
Part Type
Transceivers
Data Rate Capability
4.25
Power Supply (V)
3.3
Data Input Type
CML
Data Output Type
CML
LOS/SD
LOS/SD
LOS/SD Gain
1X
RC Time Constant
20X
Hysteresis Typ (dB)
3.5

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
SY88432LMG-TR
0.042200
0.204000
24
VQFN
4x4x0.9mm
NiPdAu
e4
SY88432LMG
0.042200
0.074667
24
VQFN
4x4x0.9mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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