AS3525-A/-B C22O22
Data Sheet, Confidential
7.4.6.8 Register Description
Table 113 Headphone Related Register
Name
Base
Offset
Description
AudioSet_3
IRQ_ENRD_1
I2C audio master
I2C audio master
0x16
0x26
Power save options, common mode buffer
Interrupt settings for over current and HP detection
Table 114 HPH_OUT_R Register
Name
Base
Default
0x00
HPH_OUT_R
I2C audio master
Right Headphone Output Register
Offset: 0x02
This register is reset at a DVDD-POR.
Bit
Bit Name
HP_OVC_TO
Default
00
Access
Bit Description
headphone over current time out:
7:6
R/W
11: 0 ms
10: 512 ms
01: 128 ms
00: 256 ms
do not change
5
0
n/a
4:0
HPR_VOL
00000
R/W
volume settings for right headphone output,
adjustable in 32 steps @ 1.5dB
11111: 1.07 dB gain
11110: -0.43 dB gain
..
00001: -43.93 dB gain
00000: -45.43 dB gain
Table 115 HPH_OUT_L Register
Name
Base
Default
0x00
HPH_OUT_L
I2C audio master
Left Headphone Output Register
Offset: 0x03
This register is reset at a DVDD-POR.
Bit
Bit Name
HP_Mute_on
Default
Access
Bit Description
7
0
0
0
R/W
0: normal operation
1: headphone output set to mute (mute is on during power-up)
0: headphone stage not powered
1: power up headphone stage
0: no headphone detection
1: enable headphone detection
volume settings for left headphone output,
adjustable in 32 steps @ 1.5dB
11111: 1.07 dB gain
6
HP_on
R/W
R/W
R/W
5
HPdet_on
HPL_VOL
4:0
00000
11110: -0.43 dB gain
..
00001: -43.93 dB gain
00000: -45.43 dB gain
© 2005-2009, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com Revision 1.13
133 - 194
AMSCO [ AMS(艾迈斯) ]
