CS43L21-DNZR View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS43L21-DNZR' PDF : 63 Pages View PDF
CS43L21
6.12 AOUTx Volume Control:
AOUTA (Address 16h) & AOUTB (Address 17h)
7
6
5
4
3
2
1
0
AOUTx_VOL7 AOUTx_VOL6 AOUTx_VOL5 AOUTx_VOL4 AOUTx_VOL3 AOUTx_VOL2 AOUTx_VOL1 AOUTx_VOL0
Note: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.
AOUTX Volume Control (AOUTX_VOL[7:0])
Default = 00h
Binary Code
0001 1000
···
0000 0000
1111 1111
1111 1110
···
0011 0100
···
0001 1001
Function:
Volume Setting
+12.0 dB
···
0 dB
-0.5 dB
-1.0 dB
···
-102 dB
···
-102 dB
The analog output levels can be adjusted in 0.5 dB increments from +12 to -102 dB as dictated by the DAC
Soft and Zero Cross bits (DACX_SZC[1:0]). Levels are decoded in unsigned binary as described in the table
above.
Note: When the limiter is enabled, the AOUT Volume is automatically controlled and should not be ad-
justed manually. Alternative volume control may be achieved using the PCMMIXx_VOL[6:0] bits.
6.13 PCM Channel Mixer (Address 18h)
7
PCMA1
6
PCMA0
5
PCMB1
4
PCMB0
3
Reserved
2
Reserved
1
Reserved
0
Reserved
Note: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.
Channel Mixer (PCMx[1:0])
Default: 00
PCMA[1:0]
00
01
10
11
AOUTA
L
L-----+----R---
2
R
PCMB[1:0]
00
01
10
11
AOUTB
R
L-----+----R---
2
L
Function:
Implements mono mixes of the left and right channels as well as a left/right channel swap.
DS723A1
49
Share Link: 
