|Micrel's SY88063AL is a multi-rate limiting post amplifier designed for fiber-optic transceiver applications up to 12.5 Gbps. Featuring an automatic digital offset correction function, this amplifier will automatically counteract any inherent offset present in the input signal and amplifier. The highly sensitive SY88063AL can amplify input signals as low as 20 mVpp at 12.5 Gbps or 10 mVpp at 10.3 Gbps to differential CML output levels.
The SY88063AL generates a loss-of-signal (LOS) open-collector TTL output. 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. The enable input (/EN) de-asserts the true output signal without removing the input signal. The LOS output can be fed back to the /EN input to implement the squelch function that maintains output stability under a loss-of-signal condition.
The SY88063AL operates from a single +3.3 V power supply, over –40°C to +85°C, and is available in 3 mm x 3 mm 16-pin QFN package.