cs4227 Cirrus Logic, Inc., cs4227 Datasheet - Page 30

• Manufacturer Part Number: cs4227
• Description: Six Channel, 20-bit Codec
• Manufacturer: Cirrus Logic, Inc.

Analog Inputs
AIN1L, AIN1R - Left and Right Channel Mux Input 1
AIN2L, AIN2R - Left & Right Channel Mux Input 2
AIN3L, AIN3R - Left & Right Channel Mux Input 3
AINAUX - Auxiliary Line Level Input
Analog Outputs
AOUT1, AOUT2, AOUT3, AOUT4, AOUT5, AOUT6 - Audio Outputs
CMOUT - Common Mode Output
Digital Audio Interface Signals
SDIN1 - Serial Data Input 1
SDIN2 - Serial Data Input 2
SDIN3 - Serial Data Input 3
SDOUT1- Serial Data Output 1
SDOUT2 - Serial Data Output 2
SCLK - DSP Serial Port Clock I/O
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Analog signal input connections for the right and left channels for multiplexer input 1.
Analog signal input connections for the right and left channels for multiplexer input 2.
Analog signal input connections for the right and left channels for multiplexer input 3.
Analog signal input for the mono A/D converter.
The analog outputs from the 6 D/A converters. Each output can be independently controlled for output
amplitude.
This common mode voltage output may be used for level shifting when DC coupling is desired. The load
on CMOUT must be DC only, with an impedance of not less than 50 k . CMOUT should be bypassed
with a 1.0 µF to AGND.
Digital audio data for the DACs 1 and 2 is presented to the CS4227 on this pin. This pin is also used for
one-line data input modes.
Digital audio data for the DACs 3 and 4 is presented to the CS4227 on this pin.
Digital audio data for the DACs 5 and 6 is presented to the CS4227 on this pin.
Digital audio data from the 20-bit stereo audio ADCs is output from this pin. When IS = 1 or 2,
DATAAUX is output on SDOUT1. This pin is also used for one line data output modes.
Digital audio data from the mono audio ADC is output from this pin. When IS = 2, the stereo audio
ADC's are output from this pin
SCLK clocks digital audio data into the DACs via SDIN1/2/3, and clocks data out of the ADCs on
SDOUT1/2. Active clock edge depends on the DSCK bit.
CS4227
DS281PP2