AD1849K Analog Devices, AD1849K Datasheet - Page 14

• Manufacturer Part Number: AD1849K
• Description: Serial-Port 16-Bit SoundPort Stereo Codec
• Manufacturer: Analog Devices

AD1849K
Data Mode Data and Control Registers
Data Byte 1, Left Audio Data—Most Significant 8 Bits
In 16-bit linear PCM mode, this byte contains the upper eight bits of the left audio data sample. In the 8-bit companded and linear
modes, this byte contains the left audio data sample. In mono mode, only the left audio data is used. MSB first format is used in all
modes, and twos-complement coding is used in 16-bit linear PCM mode.
Data Byte 2, Left Audio Data—Least Significant 8 Bits
In 16-bit linear PCM mode, this byte contains the lower eight bits of the left audio data sample. In the 8-bit companded and linear
modes, this byte is ignored on input, zeroed on output. In mono mode, only the left audio data is used. MSB first format is used in
all modes, and twos-complement coding is used in 16-bit linear PCM mode.
Data Byte 3, Right Audio Data—Most Significant 8 Bits
In 16-bit linear PCM mode, this byte contains the upper eight bits of the right audio data sample. In the 8-bit companded and linear
modes, this byte contains the right audio data sample. In mono mode, this byte is ignored on input, zeroed on output. MSB first
format is used in all modes, and twos complement coding is used in 16-bit linear PCM mode.
Data Byte 4, Right Audio Data—Least Significant 8 Bits
In 16-bit linear PCM mode, this byte contains the lower eight bits of the right audio data sample. In the 8-bit companded and linear
modes, this byte is not used. In mono mode, this byte is ignored on input, zeroed on output. MSB first format is used in all modes,
and twos-complement coding is used in 16-bit linear PCM mode.
Data Byte 5, Output Setting Register 1
OM1
OM0
LO5:0
Output Line 1 Analog Mute:
Output Line 0 Analog Mute:
Output attenuation setting for the left DAC channel; “0” represents no attenuation. Step size is 1.5 dB; “62” represents
93 dB of attenuation. Attenuation = 1.5 dB LO, except for LO = “63,” which represents full digital mute.
0
1
0
1
Data 7
Data 7
Data 7
Data 7
Data 7
OM1
L15
R15
L7
R7
63
55
47
39
31
Mute Line 1
Line 1 on
Mute Line 0
Line 0 on
Data 6
Data 6
Data 6
Data 6
Data 6
OM0
L14
R14
L6
R6
62
54
46
38
30
Data 5
Data 5
Data 5
Data 5
Data 5
LO5
L13
R13
L5
R5
61
53
45
37
29
Data 4
Data 4
Data 4
Data 4
Data 4
LO4
L12
R12
L4
R4
60
52
44
36
28
–14–
Data 3
Data 3
Data 3
Data 3
Data 3
LO3
L11
R11
51`
L3
R3
59
43
35
27
Data 2
Data 2
Data 2
Data 2
Data 2
LO2
L10
R10
L2
R2
58
50
42
34
26
Data 1
Data 1
Data 1
Data 1
Data 1
LO1
L9
L1
R9
R1
57
49
41
33
25
Data 0
Data 0
Data 0
Data 0
Data 0
LO0
L8
L0
R8
R0
56
48
40
32
24
REV. 0