CDB44800 Cirrus Logic Inc, CDB44800 Datasheet - Page 60

• Manufacturer Part Number: CDB44800
• Description: BOARD EVAL FOR CS44800 PWM CTRL
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r

Specifications of CDB44800

• Amplifier Type: Class D
• Output Type: 8-Channel
• Voltage - Supply: 20 V ~ 50 V
• Operating Temperature: -10°C ~ 70°C
• Board Type: Fully Populated
• Utilized Ic / Part: CS44800
• Description/function: Audio DSPs
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS44800
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Max Output Power X Channels @ Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1532; CDB-44800

60
7.13
7.13.1 Independent Channel Mute (CHXX_MUTE)
7.14
7.14.1 Invert Signal Polarity (CHXX_INV)
CHB4_MUTE
CHB4_INV
7
7
Channel Mute (address 13h)
Channel Invert (address 14h)
Default = 0
0 - Disabled
1 - Enabled
Function:
The PWM outputs of the CS44800 will mute when enabled. The muting function is affected, similar to at-
tenuation changes, by the Soft and Zero Cross bits (SZC[1:0]).
Default = 0
0 - Disabled
1 - Enabled
Function:
When enabled, these bits will invert the signal polarity of their respective channels.
CHA4_MUTE
CHA4_INV
6
6
CHXX_IVOL[7:0]
0001 1000
0000 0001
0000 0001
0000 0000
0000 0000
1000 0010
1000 0001
1000 0001
0001 0111
1111 1101
1111 1110
1111 1111
1111 1111
CHB3_MUTE
CHB3_INV
5
5
Table 9. Channel Fractional Volume Settings
CHA3_MUTE
CHA3_INV
CHXX_FVOL(1:0)
4
4
00
10
00
01
00
10
00
10
00
00
11
11
11
CHB2_MUTE
CHB2_INV
3
3
Volume Setting
CHA2_MUTE
CHA2_INV
-126.00 dB
-126.25 dB
-127.00 dB
+24.00 dB
+23.50 dB
+1.75 dB
+1.00 dB
+0.25 dB
-0.50 dB
-1.00 dB
-1.25 dB
-2.50 dB
0 dB
2
2
CHB1_MUTE
CHB1_INV
1
1
CS44800
CHA1_MUTE
CHA1_INV
DS632F1
0
0