Datasheet
Output Stage Volume Controls
TLV320AIC3106
www.ti.com
........................................................................................................................................ SLAS509E – DECEMBER 2006 – REVISED DECEMBER 2008
Page 0 / Register 42: Output Driver Pop Reduction Register
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7 – D4 R/W 0000 Output Driver Power-On Delay Control
0000: Driver power-on time = 0 µ s
0001: Driver power-on time = 10 µ s
0010: Driver power-on time = 100 µ s
0011: Driver power-on time = 1 ms
0100: Driver power-on time = 10 ms
0101: Driver power-on time = 50 ms
0110: Driver power-on time = 100 ms
0111: Driver power-on time = 200 ms
1000: Driver power-on time = 400 ms
1001: Driver power-on time = 800 ms
1010: Driver power-on time = 2 s
1011: Driver power-on time = 4 s
1100 – 1111: Reserved. Do not write these sequences to these register bits.
D3 – D2 R/W 00 Driver Ramp-up Step Timing Control
00: Driver ramp-up step time = 0 ms
01: Driver ramp-up step time = 1 ms
10: Driver ramp-up step time = 2 ms
11: Driver ramp-up step time = 4 ms
D1 R/W 0 Weak Output Common-mode Voltage Control
0: Weakly driven output common-mode voltage is generated from resistor divider off the AVDD supply
1: Weakly driven output common-mode voltage is generated from bandgap reference
D0 R/W 0 Reserved. Write only zero to this register bit.
Page 0 / Register 43: Left DAC Digital Volume Control Register
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7 R/W 1 Left DAC Digital Mute
0: The left DAC channel is not muted
1: The left DAC channel is muted
D6 – D0 R/W 000 0000 Left DAC Digital Volume Control Setting
000 0000: Gain = 0 dB
000 0001: Gain = – 0.5 dB
000 0010: Gain = – 1 dB
…
111 1101: Gain = – 62.5 dB
111 1110: Gain = – 63 dB
111 1111: Gain = – 63.5 dB
Page 0 / Register 44: Right DAC Digital Volume Control Register
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7 R/W 1 Right DAC Digital Mute
0: The right DAC channel is not muted
1: The right DAC channel is muted
D6 – D0 R/W 000 0000 Right DAC Digital Volume Control Setting
000 0000: Gain = 0 dB
000 0001: Gain = – 0.5 dB
000 0010: Gain = – 1 dB
…
111 1101: Gain = – 62.5 dB
111 1110: Gain = – 63 dB
111 1111: Gain = – 63.5 dB
A basic analog volume control with range from 0 dB to – 78 dB and mute is replicated multiple times in the output
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