Datasheet
TLV320AIC3120
SLAS653A –FEBRUARY 2010–REVISED MAY 2012
www.ti.com
Page 1 / Register 42 (0x2A): Class-D Output Driver
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D5 R/W 000 Reserved. Write only zeros to these bits.
D4–D3 R/W 00 00: Class-D driver output stage gain = 6 dB
01: Class-D driver output stage gain = 12 dB
10: Class-D driver output stage gain = 18 dB
11: Class-D driver output stage gain = 24 dB
D2 R/W 0 0: Class-D driver is muted.
1: Class-D driver is not muted.
D1 R/W 0 Reserved. Write only zero to this bit.
D0 R 0 0: Not all programmed gains to class-D driver have been applied yet.
1: All programmed gains to class-D driver have been applied.
Page 1 / Register 43 (0x2B): Reserved
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W XXXX XXXX Reserved. Do not wite to this register.
Page 1 / Register 44 (0x2C): HP Driver Control
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D5 R/W 001 Debounce time for the headset short-circuit detection
MCLK/DIV (Page 3 /
(1)
register 16) = 1-MHz Internal Oscillator Source
Source
000: Debounce time = 0 μs 0 μs
001: Debounce time = 8 μs 7.8 μs
010: Debounce time = 16 μs 15.6 μs
011: Debounce time = 32 μs 31.2 μs
100: Debounce time = 64 μs 62.4 μs
101: Debounce time = 128 μs 124.9 μs
110: Debounce time = 256 μs 250 μs
111: Debounce time = 512 μs 500 μs
Note: These values are based on a nominal oscillator
frequency of 8.2 MHz. Values will scale to the actual
oscillator frequency.
D4–D3 R/W 00 00: Default mode for the DAC
01: DAC performance increased by increasing the current
10: Reserved
11: DAC performance increased further by increasing the current again
D2 R/W 0 0: HPOUT output driver is programmed as headphone driver.
1: HPOUT output driver is programmed as lineout driver.
D1–D0 R/W 00 Reserved. Write only zeros to these bits.
(1) The clock used for the debounce has a clock period = debounce duration/8.
Page 1 / Register 45 (0x2D): Reserved
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W XXXX XXXX Reserved. Do not write to these registers.
106 REGISTER MAP Copyright © 2010–2012, Texas Instruments Incorporated
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