AD1839A
Table 11. DAC Control 1
Address
R/W RES
15, 14, 13, 12 11 10
0000
00
De-emphasis
9, 8
00 = None
01 = 44.1 kHz
10 = 32.0 kHz
11 = 48.0 kHz
DAC Data Format
7, 6, 5
000 = I2S
001 = RJ
010 = DSP
011 = LJ
100 = Packed 256
101 = Packed128
110 = Reserved
111 = Reserved
Function
DAC Data-Word Width
4, 3
00 = 24 Bits
01 = 20 Bits
10 = 16 Bits
11 = Reserved
Power-Down Reset
2
0 = Normal
1 = Power-Down
Sample Rate
1, 0
00 = 8 × (48 kHz)
01 = 4 × (96 kHz)
10 = 2 × (192 kHz)
11 = 8 × (48 kHz)
Table 12. DAC Control 2
Address R/W RES Reserved
15, 14,
13, 12
11 10 9
0001
0
0
0
Stereo
Replicate
8
0 = Off
1 = Replicate
Reserved
7
0 = On
1 = Mute
Reserved
6
0 = On
1 = Mute
Function
MUTE DAC
OUTR3 OUTL3 OUTR2
5
4
3
0 = On 0 = On 0 = On
1 = Mute 1 = Mute 1 = Mute
OUTL2
2
0 = On
1 = Mute
OUTR1
1
0 = On
1 = Mute
OUTL1
0
0 = On
1 = Mute
Table 13. DAC Volume Control
Function
Address
R/W
RES
DAC Volume
15, 14, 13, 12
11
10
9, 8, 7, 6, 5, 4, 3, 2, 1, 0
0010 = DACL1
0
0
0000000000 = Mute
0011 = DACR1
0000000001 = 1/1023
0100 = DACL2
0000000010 = 2/1023
0101 = DACR2
1111111110 = 1022/1023
0110 = DACL3
1111111111 = 1023/1023
0111 = DACR3
Table 14. ADC Peak
Address
15, 14, 13, 12
1010 = Left ADC
1011 = Right ADC
R/W
RES
Six Data Bits
11
10
9, 8, 7, 6, 5, 4
1
0
000000 = 0.0 dBFS
000001 = –1.0 dBFS
000010 = –2.0 dBFS
111111 = –63.0 dBFS
Function
Four Fixed Bits
3, 2, 1, 0
0000
These four bits are always 0.
Table 15. ADC Control 1
Address
15, 14, 13, 12
1100
R/W RES Reserved
11
10 9
0
0
0
Filter
8
0 = All Pass
1 = High-Pass
Function
ADC Power-
Down
7
0 = Normal
1 = Power-Down
Sample Rate
6
0 = 48 kHz
1 = 96 kHz
Reserved
5, 4, 3, 2, 1, 0
0, 0, 0, 0, 0, 0
0, 0, 0, 0, 0, 0
Rev. B | Page 21 of 24