CXA3668N

www.DataSheet4U.com CXA3668N 24 pin SSOP (Plastic) Reception Analog Signal Processor IC for Infrared Space Digital Audio Communication Description The CXA3668N is an IC that performs reception side analog signal processing for optical communication in combination with an infrared photodiode within a Digital Infrared Audio Transmission (DIAT) system. This IC incorporates a low noise trans-conductance amplifier (I/V amplifier) that converts the optical current from the photodiode into a voltage and amplifies it, an AGC amplifier, a low-pass filter, bandpass filters, and an output amplifier. The band-pass filters are used to separate the desired signal and the interfering signal. This chip has the two types of Full (3 to 6MHz) and Half (3 to 4.5MHz) band-pass filters, and these can be switched according to the application. Full: Full-band width (3 to 6MHz) Half: Half-band width (3 to 4.5MHz) Features Wide dynamic range On-chip I/V amplifier On-chip output filter Filter band switching pin Surface mounting package (24-pin SSOP) Applications Infrared headphones Infrared speakers Structure Bi-CMOS IC Absolute Maximum Ratings Supply voltage Storage temperature Allowable power dissipation (Ta = 25°C) VCCI, VCC2, VCCS, VCCO Tstg PD 3.3 V –55 to +150 °C 400 mW Recommended Operating Conditions Supply voltage VCCI, VCC2, VCCS, VCCO Operating temperature Topr 2.3 to 2.7 –40 to +85 V °C Sony reserves the right to change products and specifications without ...