GENERAL DESCRIPTION
The TZA3034 is a high gain limiting amplifier that is designed to process signals from fibre optic preamplifiers like the TZA3033. It is pin compatible with the NE/SA5224 and NE/SA5225 but with extended power supply range, and needs less external components. Capable of operating at 155 Mbits/s, the chip has input signal level detection with a user-programmable threshold. The data and level detection status outputs are differential outputs for optimum noise margin and ease of use.

FEATURES
• Pin compatible with the NE/SA5224 and NE/SA5225 but
   with extended power supply range and less external
   component count
• Wideband operation from 1.0 kHz to 150 MHz typical
• Applicable in 155 Mbits/s SDH/SONET receivers
• Single supply voltage from 3.0 to 5.5 V
• Positive Emitter Coupled Logic (PECL) compatible data outputs
• Programmable input signal level detection which can be
   adjusted using a single external resistor
• On-chip DC offset compensation without external capacitor.

APPLICATIONS
• Digital fibre optic receiver in short, medium and long
   haul optical telecommunications transmission systems
   or in high speed data networks
• Wideband RF gain block.