cs42324 Cirrus Logic, Inc., cs42324 Datasheet - Page 53

• Manufacturer Part Number: cs42324
• Description: 10-in, 6-out, 2 Vrms Audio Codec
• Manufacturer: Cirrus Logic, Inc.

DS721A6
6.9.3
6.10
6.10.1 DAC1 De-Emphasis Control
6.10.2 DAC1 Single Volume Control
6.10.3 DAC1 Soft Ramp Control
DAC1_DEPH
7
DAC1 Control (Address 0Bh)
Analog Input Selection
These bits are used to select the input source for the ADC.
This bit enables the digital filter to apply the standard 15
sample rate (Fs) of 44.1 kHz. De-emphasis is available only in Single-Speed Mode.
The individual channel volume levels are independently controlled by their respective Volume Control reg-
isters when this function is disabled. When enabled, the volume on DAC1 channels is determined by the
DAC1A Volume Control register and the DAC1B Volume Control register is ignored.
Soft Ramp allows level changes, both muting and attenuation, to be implemented by incrementally ramp-
ing, in 1/8 dB steps, from the current level to the new level at a rate of 1 dB per 8 left/right clock periods.
0
1
000
001
010
011
100
101
110
111
0
1
0
1
0
1
AIN_SEL[2:0]
DAC1_DEPH
DAC1_SNGVOL
DAC1_SOFT
ADC_SOFT
DAC1_SNGV
OL
6
Off
On
Reserved
Line-Level Input Pair 1
Line-Level Input Pair 2
Line-Level Input Pair 3
Line-Level Input Pair 4
Line-Level Input Pair 5
Reserved
Reserved
Off
On (valid for Fs = 44.1 kHz)
Off
On
DAC1_SOFT
Off
On
5
DAC1_ZC
4
DAC1 De-Emphasis Control
DAC1 Single Volume Control
DAC1 Soft Ramp Control
ADC Soft Ramp Control
ADC Soft Ramp Control
LOOPBACK
DAC1_
3
μ
s/50
μ
s digital de-emphasis filter response for a
DAC1_INV
2
DAC1_MIX1
1
CS42324
DAC1_MIX0
0
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