General Description
The SY88993AL limiting post amplifier, with its wide bandwidth, is ideal for use as a post amplifier in fiber-optic receivers with data rates up to 3.2Gbps. Signals as small as 4mVPP can be amplified to drive devices with CML inputs or AC-coupled PECL inputs. The SY88993AL generates a chatter-free Loss-of-Signal (LOS) open collector TTL output using an external resistor, as shown Figure 1.

Features
• Up to 3.2Gbps operation
• Low noise CML data outputs
• Chatter-Free LOS generation
• Open Collector TTL LOS output
• TTL /EN Input
• Differential PECL inputs for data
• Single 3.3V power supply
• Available in a tiny 10-pin (3mm x 3mm) MSOP

Applications
• PON
• SFP/SFF/GBIC optical transceivers
• Gigabit Ethernet
• 1X and 2X Fibre Channel
• SONET/SDH: OC 3/12/24/48 – STM 1/4/8/16
• Line driver and line receiver