CS42436_07 Datasheet, PDF (9/61 Pages) Cirrus Logic – 108 dB, 192 kHz 6-In, 6-Out TDM CODEC

2. PIN DESCRIPTIONS - HARDWARE MODE
CS42436
AIN5_MUX
AIN6_MUX
MFREQ
ADC3_HPF
RST
VLC
FS
VD
DGND
VLS
SCLK
MCLK
ADC_SDOUT/
ADC3_SINGLE
52 51 50 49 48 47 46 45 44 43 42 41 40
1
39
2
38
3
37
4
36
5
35
6
CS42436
34
7
33
8
32
9
31
10
30
11
29
12
28
13
27
14 15 16 17 18 19 20 21 22 23 24 25 26
AIN1+
AIN1-
VA
VQ
AGND
TSTO
TSTO
TSTO
TSTO
AOUT6-
AOUT6+
AOUT5+
AOUT5-
Pin Name
AIN5_MUX
AIN6_MUX
MFREQ
ADC3_HPF
RST
VLC
FS
VD
DGND
VLS
SCLK
MCLK
ADC_SDOUT
ADC_SINGLE
DAC_SDIN
#
Pin Description
1 Analog Input Multiplexer (Input) - Allows selection between the A and B single-ended inputs of
2 ADC3.
3 MCLK Frequency (Input) - Sets the required frequency range of the input Master Clock.
4 ADC3 High-Pass Filter Freeze (Input) - When this pin is driven high, the internal high-pass filter
will be disabled for ADC3.The current DC offset value will be frozen and continue to be subtracted
from the conversion result.
5
Reset (Input) - The device enters a low-power mode and all internal registers are reset to their
default settings when low.
6
Control Port Power (Input) - Determines the required signal level for the control port interface.
See “Digital I/O Pin Characteristics” on page 8.
7 Frame Sync (Input) - Signals the start of a new TDM frame in the TDM digital interface format.
8 Digital Power (Input) - Positive power supply for the digital section.
9,18 Digital Ground (Input) - Ground reference for the digital section.
10
Serial Port Interface Power (Input) - Determines the required signal level for the serial port inter-
faces. See “Digital I/O Pin Characteristics” on page 8.
11 Serial Clock (Input) - Serial clock for the serial audio interface. Input frequency must be 256 x Fs.
12 Master Clock (Input) - Clock source for the delta-sigma modulators and digital filters.
13
Serial Audio Data Output (Output) - TDM output for two’s complement serial audio data. Start-up
Option for Hardware Mode: Pull-up to VLS enables Single-Ended Mode for AIN5-AIN6.
14 DAC Serial Audio Data Input (Input) - TDM Input for two’s complement serial audio data.
DS647F2
9