SE1230Q

SE1230Q LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final Applications SONET/SDH-based transmission systems, test equipment and modules OC-48 fibre optic modules Gigabit Ethernet Fibre Channel Wideband RF gain block Product Description SiGe Semiconductor offers a portfolio of optical networking ICs for use in high-performance optical transmitter and receiver functions, from 155 Mb/s up to 12.5 Gb/s. SiGe Semiconductor’s SE1230 is a fully integrated AGC amplifier aimed primarily at SONET OC-48 and SDH STM-16 systems. The device may also be used in any datacom application with input data rates up to 2.5 Gb/s. The device is designed with differential I/Os and signal levels compatible with SiGe Semiconductor’s SE1030 and SE1031 transimpedance amplifiers. A system block diagram is shown after the functional description, on page 4. Optimum performance is provided by differential connections but with appropriate terminations, the device can also be used in single-ended mode if required by the application. Features Single +3.3 V supply Power dissipation = 230 mW (typ) Noise figure < 12 dB Small signal gain = 23.5 dB differential Fully integrated AGC function On-chip 50 Ω input and output terminations Wide bandwidth (–3 dB) > 2.0 GHz Maximum input level of 200 mVpk AGC output level of 370 mVpk differential Loss of signal functionality Single-ended or differential operation Minimal external components Operating ambient temperature range = -40°C to +85°C Equivalent to Nort...