參數(shù)資料
型號(hào): AS3517-T
廠商: ams
文件頁數(shù): 57/94頁
文件大?。?/td> 0K
描述: IC CODEC AFE AUDIO STER 81-CTBGA
標(biāo)準(zhǔn)包裝: 2,000
類型: 音頻編解碼器
應(yīng)用: 便攜式音頻,電話
安裝類型: 表面貼裝
封裝/外殼: 81-TFBGA
供應(yīng)商設(shè)備封裝: 81-CTBGA(9x9)
包裝: 帶卷 (TR)
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
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