SY88403BL Datasheet | Microchip Technology

Features - Multi-Rate up to 4.25 Gbps Operation - 5 m VPP Input Sensitivity - Low Noise 50Ω CML Data Outputs - 800 m VPP Output Swing - 60 ps Edge Rates - 1ps RMS Typ. Random Jitter - 10ps PP Typ. Deterministic Jitter - Chatter-Free Loss-of-Signal (LOS) Output - 3.5 d B Electrical Hysteresis - OC-TTL Output with Internal 4.75 kΩ Pull-Up Resistor - Programmable LOS Sensitivity Using Single External Resistor - Internal 50Ω Data Input Termination - TTL /EN Input Allows Feedback from LOS - Wide Operating Range: - Single 3.3V ±10% Power Supply - Industrial Temperature Range: - 40°C to +85°C - Available in a 16-pin QFN Package Applications - 1.062 Gbps, 2.125 Gbps, and 4.25 Gbps Fibre Channel - Cable Driver - Small Form Factor (SFF) and Small Form Factor Pluggable (SFP) Transceivers - High-Gain Line Driver and Line Receiver General Description The SY88403BL is a low-power limiting post amplifier optimized for copper applications. The device connects to typical transimpedance amplifiers (TIAs). The linear signal output from TIAs can contain significant amounts of noise and may vary in amplitude over time. The SY88403BL quantizes these signals and outputs typically 800 m VPP voltage-limited waveforms. The SY88403BL operates from a single +3.3V ±10% power supply, over an industrial temperature range of - 40°C to +85°C. With its wide bandwidth and high gain, signals with data rates up to 4.25 Gbps and as small as 5 m VPP can be amplified to drive devices with CML inputs or AC-coupled PECL inputs. The SY88403BL incorporates a loss-of-signal (LOS) open-collector TTL output with internal 4.75 kΩ pull-up resistor. A programmable loss-of-signal level set pin (LOSLVL) sets the sensitivity of the input amplitude detection. LOS asserts high if the input amplitude falls below the threshold set by LOSLVL and de-asserts low otherwise. LOS can be fed back to the enable bar (/EN) input to maintain output stability under a loss of signal condition. /EN de-asserts the true output signal without...