SY88773VMG

Special Purpose Amplifiers Overview

The SY88773VMG is a low-power limiting post amplifier designed for fiber optic receivers, operating from a single +3.3V ±10% or +5V ±10% power supply across an industrial temperature range of –40°C to +85°C. It supports multi-rate operation up to 3.2Gbps with a wide gain-bandwidth product featuring 38dB differential gain and a 2GHz 3dB bandwidth. The device provides low-noise 50Ω CML data outputs with an 800mVpp output swing, 60ps edge rates, 5ps RMS typical random jitter, and 15ps PP typical deterministic jitter. It incorporates a chatter-free Loss-of-Signal (LOS) open-collector TTL output with internal 4.75kΩ pull-up resistor and 4.6dB electrical hysteresis.

Special Purpose Amplifiers Feature Summary

• Multi-rate operation supporting data rates up to 3.2Gbps
• Chatter-free Loss-of-Signal (LOS) output with programmable sensitivity
• Low-noise 50Ω CML data outputs with integrated input bias reference
• TTL /EN input allows feedback from LOS for output stability

Special Purpose Amplifiers Applications

• 1.25Gbps and 2.5Gbps Gigabit Ethernet
• 1.062Gbps and 2.125Gbps Fibre Channel
• 155Mbps, 622Mbps, 1.25Gbps, and 2.5Gbps SONET/SDH
• Small form factor (SFF) and small form factor pluggable (SFP) transceivers

Special Purpose Amplifiers Procurement Notes

Verify the specific ordering suffix 'MG' corresponds to the MLF-16 package with NiPdAu lead finish and Pb-Free status as documented in the manufacturer's selection guide. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure the industrial temperature rating aligns with your operational environment specifications before finalizing procurement.

Special Purpose Amplifiers Selection Notes

Select this component when designing fiber optic receivers requiring a limiting post amplifier to interface with transimpedance amplifiers. It is suitable for applications needing high-gain line drivers or receivers within SFF and GBIC modules. Consider the MLF-16 package if space constraints require a compact footprint. Verify compatibility with downstream devices accepting CML or AC-coupled PECL inputs.

Special Purpose Amplifiers Part Context

The SY88773VMG belongs to Micrel's family of Limiting Amplifiers, specifically engineered for optical communication systems. It functions as a post-amplifier following a transimpedance amplifier (TIA) to quantize noisy signals into voltage-limited waveforms. This series includes variants with different signal detection features, such as the SY88823V which utilizes Signal Detect (SD) instead of Loss-of-Signal (LOS).

Special Purpose Amplifiers Replacement Considerations

SY88973V: Offers similar functionality but includes integrated input termination.