SY88993AL Datasheet | Micrel Semiconductor

3.3V 3.2Gbps High-Speed Limiting Post Amplifier with High Input Sensitivity 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 4m VPP 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. The SY88993AL incorporates a programmable level detect function to identify when the input signal has been lost. This information can be fed back to the /EN input of the device to maintain stability under loss of signal conditions. Using LOSLVL pin the sensitivity of the level detect can be adjusted. The LOSLVL voltage can be set by connecting a resistor divider between VCC and VREF, Figure 5. Datasheets and support documentation can be found on Micrel’s web site at: .micrel.. 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 Markets - FTTX - Data/Tele Figure 1. LOSLVL resistor configuration Micrel Inc. - 2180 Fortune Drive - San Jose, CA 95131 -...