GENERAL DESCRIPTION
The TZA3024 is a high gain limiting amplifier that is designed to process signals from fibre optic preamplifiers such as the TZA3023. It is pin compatible with the NE/SA5224 and NE/SA5225 but with an extended power supply range, and needs less external components. Capable of operating at 622 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 620 MHz typical
• Applicable in 622 Mbits/s SDH/SONET receivers
• Single supply voltage from 3.0 to 5.5 V
• PECL (Positive Emitter Coupled Logic) 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
• Fully differential for excellent PSRR.

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.