CS44600-DQZ CIRRUS [Cirrus Logic], CS44600-DQZ Datasheet - Page 57
CS44600-DQZ
Manufacturer Part Number
CS44600-DQZ
Description
6-Channel Digital Amplifier Controller
Manufacturer
CIRRUS [Cirrus Logic]
Datasheet
1.CS44600-DQZ.pdf
(78 pages)
- Current page: 57 of 78
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DS633PP1
7.10
7.10.1 Channel Volume Control - Integer (CHXx_IVOL[7:0])
7.11
7.12
7.12.1 Channel Volume Control - Fraction (CHXX_FVOL[1:0])
CHB2_FVOL1
CHXX_IVOL7
RESERVED
7
7
7
Channel XX Volume Control - Integer (addresses 09h - 0Eh)
Channel XX Volume Control1 - Fraction (address 11h)
Channel XX Volume Control2 - Fraction (address 12h)
Default = 00000000
Function:
The Channel X Volume Control - Integer register allows global control of the signal levels on all channels
in 1 dB increments from +24 to -127 dB. Volume settings are decoded as shown in Table 6. The volume
changes are implemented as specified by the Soft and Zero Cross bits (SZC[1:0]. All volume settings
greater than 00011000b are equivalent to +24 dB. Binary values for integer volume settings less than
0 dB are in two’s complement form.
Default = 00
00 - +0.00 dB
01 - +0.25 dB
10 - +0.50 dB
11 - +0.75 dB
Function:
The Channel X Volume Control - Fraction register is an additional offset to the value in the Channel Vol-
ume Control - Integer register and allows global control of the signal levels on all channels in 0.25 dB in-
crements. Volume settings are decoded as shown in Table 7. These volume changes are implemented
as specified by the Soft and Zero Cross bits (SZC[1:0]). All volume settings greater than 00011000b are
equivalent to +24 dB. Binary values for integer and fractional volume settings less than 0 dB are in two’s
complement form.
See
bers to 2’s complement binary values.
“Master Volume Control - Fraction (address 08h)” on page 57
CHB2_FVOL0
CHXX_IVOL6
RESERVED
6
6
6
CHXX_IVOL[7:0]
0001 1000
0000 0001
0000 0000
1000 0001
0001 0111
1111 1111
1111 1110
CHA2_FVOL1
CHXX_IVOL5
RESERVED
5
5
5
Table 8. Channel Integer Volume Settings
CHA2_FVOL0
CHXX_IVOL4
RESERVED
4
4
4
Hex Value
FF
FE
18
17
01
00
81
CHB1_FVOL1
CHB3_FVOL1
CHXX_IVOL3
3
3
3
CHB1_FVOL0
CHB3_FVOL0
Volume Setting
CHXX_IVOL2
-127 dB
+24 dB
+23 dB
for hints on converting decimal num-
+1 dB
-1 dB
-2 dB
2
0 dB
2
2
CHA1_FVOL1
CHA3_FVOL1
CHXX_IVOL1
1
1
1
CS44600
CHA1_FVOL0
CHA3_FVOL0
CHXX_IVOL0
0
0
0
57
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