Max9860, Bit mono audio voice codec, Table 8. digital level control registers – Rainbow Electronics MAX9860 User Manual
Page 26
MAX9860
Digital Level Control
The MAX9860 includes digital gain adjustment for the
playback and record paths. Independent gain
adjustment is provided for the two record channels.
Sidetone gain adjustment is also provided to set the
sidetone level relative to the playback level.
16-Bit Mono Audio Voice Codec
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Table 8. Digital Level Control Registers
REGISTER ADDRESS
B7
B6
B5
B4
B3
B2
B1
B0
0x09
DVA
0x0A
ADCRL
ADCLL
0x0B
0
DVG
DVST
BITS
FUNCTION
DAC Level Adjust
Adjusts the digital audio level before being converted by the DAC. The least significant bit of DVA is
always 0.
CODE
GAIN
CODE
GAIN
CODE
GAIN
0x00
+3
0x40
-29
0x80
-61
0x02
+2
0x42
-30
0x82
-62
0x04
+1
0x44
-31
0x84
-63
0x06
0
0x46
-32
0x86
-64
0x08
-1
0x48
-33
0x88
-65
0x0A
-2
0x4A
-34
0x8A
-66
0x0C
-3
0x4C
-35
0x8C
-67
0x0E
-4
0x4E
-36
0x8E
-68
0x10
-5
0x50
-37
0x90
-69
0x12
-6
0x52
-38
0x92
-70
0x14
-7
0x54
-39
0x94
-71
0x16
-8
0x56
-40
0x96
-72
0x18
-9
0x58
-41
0x98
-73
0x1A
-10
0x5A
-42
0x9A
-74
0x1C
-11
0x5C
-43
0x9C
-75
0x1E
-12
0x5E
-44
0x9E
-76
0x20
-13
0x60
-45
0xA0
-77
0x22
-14
0x62
-46
0xA2
-78
0x24
-15
0x64
-47
0xA4
-79
0x26
-16
0x66
-48
0xA6
-80
0x28
-17
0x68
-49
0xA8
-81
0x2A
-18
0x6A
-50
0xAA
-82
0x2C
-19
0x6C
-51
0xAC
-83
0x2E
-20
0x6E
-52
0xAE
-84
0x30
-21
0x70
-53
0xB0
-85
0x32
-22
0x72
-54
0xB2
-86
0x34
-23
0x74
-55
0xB4
-87
0x36
-24
0x76
-56
0xB6
-88
0x38
-25
0x78
-57
0xB8
-89
0x3A
-26
0x7A
-58
0xBA
-90
0x3C
-27
0x7C
-59
≥ 0xBC
MUTE
DVA
0x3E
-28
0x7E
-60
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