DESCRIPTION

The AZ88943 is a limiting post amplifier usable at data rates up to 2.5Gbps. It is ideal for use as a post amplifier following a transimpedance amplifier.

The AZ88943 contains a programmable signal detect function to determine when the input signal is present. This information can be used with the /EN input pin to disable the output under loss of signal conditions. The detect threshold can be set with a resistor divider between VCC and VREF. The SD output is an open drain compatible with CMOS and TTL.

The outputs produce standard PECL 100K voltage compensated levels.

FEATURES

• Up to 2.5Gbps operation

• Differential PECL Inputs

• Differential PECL Outputs

• Open Drain TTL/CMOS SD Output

• TTL/CMOS Enable Input

• High-Speed SiGe Process