The TLV320AIC22 is a dual coder/decoder (codec) for voice applications, including voice-over-internet protocol (VOIP). It features two ADC conversion channels and two DAC conversion channels that can be connected to a handset, headset, speaker, microphone, or a subscriber line via an analog crosspoint. The TLV320AIC22 has a flexible serial interface that allows the two channels of the TLV320AIC22 to be interfaced to a single multichannel buffered serial port (McBSP) of the DSP. The two channels share the digital interface at different time slots. Up to four TLV320AIC22 units can be cascaded together to allow eight channels. For control purposes, either the serial interface or the I2C interface can be used. Programmable gain amplifiers, preamplifier gain, microphone bias voltages, and analog crosspoint are programmed through the serial interface or the I2C interface. The TLV320AIC22 can be powered down, via a dedicated pin or by using software control, to reduce power dissipation. The TLV320AIC22 is available in a 48-pin LQFP package and is characterized for operation from 40C to 85C. ORDERING INFORMATION