CS42436_07 Datasheet, PDF(7/61 Page) Cirrus Logic – 108 dB, 192 kHz 6-In, 6-Out TDM CODEC

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CS42436_07 Datasheet, PDF (7/61 Pages) Cirrus Logic – 108 dB, 192 kHz 6-In, 6-Out TDM CODEC

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AUX_SCLK

AUX_SDIN

AOUT1 +,-

AOUT2 +,-

AOUT3 +,-

AOUT4 +,-

AOUT5 +,-

AOUT6 +,-

TSTO

AGND

AIN1 +,-

AIN2 +,-

AIN3 +,-

AIN4 +,-

AIN5 +,-

AIN6 +,-

AIN5 A,B

AIN6 A,B

FILT+

CS42436

16 Auxiliary Serial Clock (Output) - Serial clock for the Auxiliary serial audio interface.

Auxiliary Serial Input (Input) - The 42436 provides an additional serial input for twoâs comple-

ment serial audio data.

20,19

21,22

24,23

25,26

28,27

Differential Analog Output (Output) - The full-scale differential analog output level is specified in

the Analog Characteristics specification table. Each positive leg of the differential outputs may

also be used single-ended.

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.

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

41,40

43,42

45,44

50,49

52,51

Differential Analog Input (Input) - Signals are presented differentially to the delta-sigma modula-

tors. The full-scale input level is specified in the Analog Characteristics specification table. Single-

ended inputs may be applied to the positive terminals when the ADCx SINGLE bit is enabled.

Once in Single-Ended Mode, the negative terminal of AIN1-AIN4 must be externally driven to

common mode. See below for a description of AIN5-AIN6 in Single-Ended Mode.

Single-Ended Analog Input (Input) - In Single-Ended Mode, an internal analog mux allows

50,49 selection between two channels for both analog inputs AIN5 and AIN6 (see Sections 7.6.6-7.6.8

52,51 for details). The unused leg of each input is internally connected to common mode. The full-scale

input level is specified in the Analog Characteristics specification table.

Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling cir-

cuits.

DS647F2

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