SY88345BL

SY88345BL 3.3V, 3.2Gbps CML Low-Power Limiting Post Amplifier w/ High-Gain TTL Signal Detect General Description Features Single 3.3V power supply The SY88345BL high-sensitivity limiting post amplifier is designed for use in fiber-optic receivers. The device 155Mbps to 3.2Gbps operation connects to typical transimpedance amplifiers (TIAs). Low-noise CML data outputs The linear signal output from TIAs can contain Chatter-free Open-Collector TTL signal detect (SD) significant amounts of noise and may vary in amplitude output with internal 4.75kΩ pull-up resistor over time. The SY88345BL quantizes these signals and TTL EN input outputs CML-level waveforms. Internal 50Ω input termination The SY88345BL operates from a single +3.3V +10% power supply, over temperatures ranging from –40oC to Programmable SD level set (SDLVL) +85oC. With its wide bandwidth and high gain, signals Ideal for multi-rate applications with data rates up to 3.2Gbps and as small as 5mVPP Available in a tiny 10-pin EPAD MSOP and 16-pin can be amplified to drive devices with CML inputs or ACMLF® package coupled CML/PECL inputs. The SY88345BL generates a signal-detect (SD) openApplications collector TTL output. A programmable signal-detect APON/BPON, EPON, GPON and GEPON level-set pin (SDLVL) sets the sensitivity of the input amplitude detection. SD asserts high if the input Gigabit Ethernet amplitude rises above the threshold sets by SDLVL and 1X and 2X Fibre Channel de-asserts low ot...