Page 1 Registers
Page 1 / Register 20: Headphone Driver Startup Control Register - 0x01 / 0x14 (continued)
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D5-D2
R/W
0000
0000: Slow power up of headphone amp's is disabled
0001: Headphone amps power up slowly in 0.5 time constants
0010: Headphone amps power up slowly in 0.625 time constants
0011; Headphone amps power up slowly in 0.725 time constants
0100: Headphone amps power up slowly in 0.875 time constants
0101: Headphone amps power up slowly in 1.0 time constants
0110: Headphone amps power up slowly in 2.0 time constants
0111: Headphone amps power up slowly in 3.0 time constants
1000: Headphone amps power up slowly in 4.0 time constants
1001: Headphone amps power up slowly in 5.0 time constants
1010: Headphone amps power up slowly in 6.0 time constants
1011: Headphone amps power up slowly in 7.0 time constants
1100: Headphone amps power up slowly in 8.0 time constants
1101: Headphone amps power up slowly in 16.0 time constants ( do not use for Rchg=25K)
1110: Headphone amps power up slowly in 24.0 time constants (do not use for Rchg=25K)
1111: Headphone amps power up slowly in 32.0 time constants (do not use for Rchg=25K)
Note: Time constants assume 47uF decoupling cap
D1-D0
R/W
00
00: Headphone amps power up time is determined with 25K resistance
01: Headphone amps power up time is determined with 6K resistance
10: Headphone amps power up time is determined with 2K resistance
11: Reserved. Do not use
5.3.17
Page 1 / Register 21: Reserved Register - 0x01 / 0x15
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7-D0
R
0000 0000
Reserved. Write only default values
5.3.18
Page 1 / Register 22: INL to HPL Volume Control Register - 0x01 / 0x16
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R
0
Reserved. Write only default value.
102
Register Map
SLAU434 – May 2012
Copyright © 2012, Texas Instruments Incorporated