CS42432
AUX_SCLK
AUX_SDIN
AOUT1 +,-
AOUT2 +,-
AOUT3 +,-
AOUT4 +,-
AOUT5 +,-
AOUT6 +,-
TSTO
TSTN
AGND
VQ
VA
16
17
Auxiliary Serial Clock
(Output)
- Serial clock for the Auxiliary serial audio interface.
Auxiliary Serial Input
(Input) - The 42432 provides an additional serial input for two’s comple-
ment serial audio data.
20,19
21,22
Differential Analog Output
(Output) - The full-scale differential analog output level is specified in
24,23
the Analog Characteristics specification table. Each positive leg of the differential outputs may
25,26
also be used single-ended.
28,27
29,30
31,32
Test Out
- These pins are outputs used for test purposes only. They must not be connected to any
33,34 external trace or other connection.
49,50
Test In
- These pins are inputs used for test purposes only. They must be tied to ground for nor-
51,52 mal operation.
35,48
Analog Ground
(Input) - Ground reference for the analog section.
36
Quiescent Voltage
(Output)
-
Filter connection for internal quiescent reference voltage.
37,46
Analog Power
(Input) - Positive power supply for the analog section.
39,38
Differential Analog Input
(Input) - Signals are presented differentially to the delta-
41,40
sigma modulators. The full-scale input level is specified in the Analog Characteristics
43,42
45,44
specification table.
47
Positive Voltage Reference
(Output) - Positive reference voltage for the internal sampling cir-
cuits.
AIN1 +,-
AIN2 +,-
AIN3 +,-
AIN4 +,-
FILT+
DS673F2
7
CIRRUS [ CIRRUS LOGIC ]
