CS42448-CQZR Cirrus Logic Inc, CS42448-CQZR Datasheet - Page 49

• Manufacturer Part Number: CS42448-CQZR
• Description: IC,Soundcard Circuits,CMOS,QFP,64PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

DS648F3
6.7.4
6.8
6.8.1
6.9
6.9.1
AOUT8_MUTE
AOUTx_VOL7
7
7
DAC Channel Mute (Address 07h)
AOUTX Volume Control (Addresses 08h- 0Fh)
Mute ADC Serial Port (MUTE ADC_SP)
Default = 0
0 - Disabled
1 - Enabled
Function:
When enabled, the ADC Serial Port will be muted.
Independent Channel Mute (AOUTX_MUTE)
Default = 0
0 - Disabled
1 - Enabled
Function:
The respective Digital-to-Analog converter outputs of the CS42448 will mute when enabled. The quies-
cent voltage on the outputs will be retained. The muting function is affected by the DAC Soft and Zero
Cross bits (DAC_SZC[1:0]). When all channels are muted, the MUTEC pin will become active.
Volume Control (AOUTX_VOL[7:0])
Default = 00h
Function:
The AOUTx Volume Control registers allow independent setting of the signal levels in 0.5 dB increments
from 0 dB to -127.5 dB. Volume settings are decoded as shown in
implemented as dictated by the Soft and Zero Cross bits (DAC_SZC[1:0]). All volume settings less than
-127.5 dB are equivalent to enabling the AOUTx_MUTE bit for the given channel.
AOUT7_MUTE
AOUTx_VOL6
6
6
AOUT6_MUTE
AOUTx_VOL5
Table 14. Example AOUT Volume Settings
5
5
Binary Code
00000000
00101000
01010000
10110100
01111000
AOUT5_MUTE
AOUTx_VOL4
4
4
AOUT4_MUTE
AOUTx_VOL3
Volume Setting
3
3
-20 dB
-40 dB
-60 dB
-90 dB
0 dB
AOUT3_MUTE
AOUTx_VOL2
2
2
Table
14. The volume changes are
AOUT2_MUTE
AOUTx_VOL1
1
1
CS42448
AOUT1_MUTE
AOUTx_VOL0
0
0
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