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AS3517H-ECTP Datasheet(PDF) 60 Page - ams AG

Part # AS3517H-ECTP
Description  Stereo Audio Codec with enhanced System Power Management
PDF  94 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3517H-ECTP Datasheet(HTML) 60 Page - ams AG

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AS3517 V17
Data Sheet, Confidential
© 2003-2007, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
Table 49 HPH_OUT_R Register
Name
Base
Default
HPH_OUT_R
2-wire serial
00h
Right Headphone Output Register
Offset: 02h
Configures MUX_C and the audio gain from MUX_C output to HPR output.
This register is reset at a DVDD-POR.
Bit
Bit Name
Default
Access
Bit Description
7:6
HP_OVC_TO
00
R/W
Headphone amplifier over current time out. The headphone
amplifier is powered down if an over-current is detected. The
current thresholds are 150mA at pins HPR / HPL pin or 300mA
at pin HPCM (e.g. shorted headphone outputs)
11: 0 ms ( no power down)
10: 512ms
01: 128ms
00: 256 ms
5
DAC_DIRECT
0
R/W
0: MUX_C output connected to limiter (N24/N25)
1: MUX_C output connected to DAC (N23/N26)
4:0
HPR_VOL
00000
R/W
volume settings for right headphone output, adjustable in 32
steps @ 1.5dB; gain from MUX_C to HPR output
11111: 1.07 dB gain
11110: -0.43 dB gain
..
00001: -43.93 dB gain
00000: -45.43 dB gain
Table 50 HPH_OUT_L Register
Name
Base
Default
HPH_OUT_L
2-wire serial
00h
Left Headphone Output Register
Offset: 03h
Configures the audio gain from MUX_C output to HPL output and controls
MUTE switch K
This register is reset at a DVDD-POR.
Bit
Bit Name
Default
Access
Bit Description
7
MUTE_ON_K
0
R/W
Control of MUTE switch K
0: normal operation
1: headphone output set to mute (mute is on during power-up)
6
HP_ON
0
R/W
0: headphone stage not powered
1: power up headphone stage
5
HPDET_ON
0
R/W
Enables the detection when a headset gets connected. HPCM
is used as a sense pin and is biased to 150mV
0: no headphone detection
1: enable headphone detection
4:0
HPL_VOL
00000
R/W
volume settings for left headphone output, adjustable in 32
steps @ 1.5dB; gain from MUX_C output to HPL output
11111: 1.07 dB gain
11110: -0.43 dB gain
..
00001: -43.93 dB gain
00000: -45.43 dB gain
Revision 1v3
59
- 93



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