CS42325 Datasheet, PDF (11/71 Pages) Cirrus Logic – 10-In, 6-Out, 2 Vrms Audio CODEC with Headphone

CS42325
MUTEC3
Mute Control 3 (Output) - Active-low mute output can drive external circuitry to eliminate the
13
clicks and pops associated with any single-rail output. This pin will become a high-impedance out-
put during power-down mode or when an invalid MCLK to LRCK ratio is detected.
VCMBUF
14 ^{VCMBUF (Output) - Internally buffered VCMDAC}
VCMDAC
15
DAC Common-Mode Voltage (Output) - Filter connections for the DAC internal quiescent refer-
ence voltage.
VA_H
16, 18 Analog High Voltage Power (Input) - Positive power for the internal output buffer section.
GNDH
17 Analog Ground (Input) - Ground reference for high-voltage section.
AOUT1A, AOUT1B 19, 20 Line Level Analog Audio Outputs (Output) - The full-scale output level is specified in the DAC
AOUT2A, AOUT2B 21, 22 Analog Characteristics specification table.
AOUT3A/HPA
AOUT3B/HPB
23 Line Level/Headphone Analog Audio Outputs (Output) - The full-scale output level is specified
24 in the DAC Analog Characteristics specification table.
AIN5B, AIN5A
AIN4B, AIN4A
AIN3B, AIN3A
AIN2B, AIN2A
AIN1B, AIN1A
25, 26 Stereo Analog Inputs 1-5 (Input) - The full-scale input level is specified in the ADC Analog Char-
27, 28 acteristics specification table.
29, 30
31, 32
33, 34
RST
35 Reset (Input) - The device enters a low-power mode when this pin is driven low.
OVFL
36 ADC Overflow (Output) - Indicates an ADC overflow condition is present.
SDIN2
SDIN1
37 Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
38
MCLK2
39
Master Clock 2 (Input) - Optional asynchronous clock source for the DAC’s delta-sigma modula-
tors.
LRCK2
40
Serial Port 2 Left/Right Clock (Input/Output) - Determines which channel, Left or Right, is cur-
rently active on the serial audio input data line.
SCLK2
41 Serial Port 2 Serial Bit Clock (Input/Output) - Serial bit clock for serial audio interface 2.
VD
42 Digital Power (Input) - Positive power for the internal digital section.
GND
43 Digital Ground (Input) - Ground reference for the internal digital section.
Digital Interface Power (Input) - Determines the required signal level for the control and serial
VL
44 port interfaces as shown in “I/O Power Rails” on page 12. Refer to the“Recommended Operating
Conditions” on page 13 for appropriate voltages
SDOUT
45 Serial Audio Data Output (Output) - Output for two’s complement serial audio data.
SCLK1
46 Serial Port 1 Serial Bit Clock (Input/Output) - Serial bit clock for serial audio interface 1.
LRCK1
47
Serial Port 1 Left Right/Clock (Input/Output) - Determines which channel, Left or Right, is cur-
rently active on the serial audio output data line.
MCLK1
48
Master Clock 1 (Input) - Clock source for the ADC’s delta-sigma modulators. By default, this sig-
nal also clocks the DAC’s delta-sigma modulators.
DS838A2
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