SY88289BL

SY88289BL 3.3V, 3.2Gbps CML Limiting Post Amplifier with High-Gain TTL Loss-of-Signal General Description Features The SY88289BL low-power limiting, post amplifier is Single 3.3V power supply designed for use in fiber-optic receivers. The device DC to 3.2Gbps operation connects to typical transimpedance amplifiers (TIAs). Low-noise CML data outputs The linear signal output from TIAs can contain High-gain LOS significant amounts of noise and may vary in amplitude Chatter-free open-collector TTL signal detect (LOS) over time. The SY88289BL quantizes these signals and output with internal 4.75kΩ pull-up resistor outputs CML level waveforms. TTL /EN input The SY88289BL operates from a single +3.3V power supply, over temperatures ranging from –40oC to +85oC. Programmable LOS level set (LOSLVL) With its wide bandwidth, high gain, and signals with data Ideal for mutil-rate applications rates up to 3.2Gbps and as small as 5mVPP can be Available in a tiny 16-pin MLF® package amplified to drive devices with CML inputs or ACcoupled CML/PECL inputs. Applications The SY88289BL generates a high-gain loss-of-signal APON, BPON, EPON, and gpon (LOS) open-collector TTL output. This function has a Gigabit Ethernet high-gain input stage for increased LOS sensitivity. A Fibre Channel programmable loss-of-signal level set pin (LOSLVL) sets OC-3 and OC-12/24 SONET/SDH the sensitivity of the input amplitude detection. LOS asserts high if the input amplitude falls below w...