CXA2089Q/S is a 5-input, 2-output audio/video switch featuring I2C bus compatibility for TVs. This IC has input pins that are compatible with S2 protocol. The features include: 3 inputs that are compatible with S2 protocol, serial control with I2C bus, 5 inputs, 2 outputs, the desired inputs can be selected independently for each of the 2 outputs, wide band video amplifier (20MHz, –3dB), Y/C MIX circuit, slave address can be changed (90H/92H), audio muting from external pin, high impedance maintained by I2C bus lines (SDA, SCL) even when power is off, wide audio dynamic range (3Vrms typ.).
The CXA2089Q/S is a Sony 5‑input, 2‑output audio/video switch IC with I²C bus compatibility for TVs. It supports independent selection of inputs for each output, wide‑band video amplification, and audio muting via an external pin. The device is offered in two package types: a 48‑pin QFP (CXA2089Q) and a 48‑pin SDIP (CXA2089S).
The datasheet details pin assignments, electrical characteristics such as supply voltage, current consumption, gain, frequency response, and distortion figures, as well as package dimensions and material specifications. It also explains how the I²C slave address can be set and provides typical application circuits.
| Supply voltage | 12 V |
|---|---|
| Operating temperature range | -20 °C to +75 °C |
| Allowable power dissipation | 1500 mW |
| Current consumption (no signal, no load) | 30 mA min / 45 mA typ / 62 mA max |
| Video system gain | 5.9 dB min / 6.4 dB typ / 6.9 dB max |
| Cross talk (audio) | -90 dB min / -80 dB max |
The device operates from a 12 V supply (Vcc).
It has five inputs and two outputs that can be selected independently.
The IC can operate up to +75 °C.