參數(shù)資料
型號(hào)： WM9712LEFT
廠商： Wolfson Microelectronics
元件分類： Codec
英文描述： AC97 Audio and Touchpanel CODEC
中文描述： AC97音頻編解碼器和觸摸屏
文件頁(yè)數(shù)： 31/78頁(yè)
文件大?。?/td> 689K
代理商： WM9712LEFT
Production Data
WM9712L
w
PD Rev 4.0 December 2003
31
LOUDSPEAKER OUTPUTS – LOUT2 AND ROUT2
The LOUT2 and ROUT2 outputs are designed to differentially drive an 8
mono speaker. They can
also be used as a stereo line-out or headphone output.
For speaker drive, the LOUT2 signal must be inverted (INV = 1), so that the left and right channel are
added up in the speaker [R–(-L) = R+L].
REGISTER
ADDRESS
02h
LOUT2/ROUT2
Volume
BIT
LABEL
DEFAULT
DESCRIPTION
15
MUTE
1
Mute LOUT2 and ROUT2
1: Mute (OFF)
0: No Mute (ON)
LOUT2 Volume
000000: 0dB (maximum)
000001: -1.5dB
… (1.5dB steps)
011111: -46.5dB
1xxxxx: -46.5dB
Zero Cross Enable
0: Change gain immediately
1: Change gain only on zero crossings,
or after time-out
LOUT2 Invert
0 = No Inversion (0
°
phase shift)
1 = Signal inverted (180
°
phase shift)
ROUT2 Volume
Similar to LOUT2VOL
Source of LOUT2/ROUT2 signals
0: speaker mixer (for BTL speaker)
1: headphone mixer (for stereo output)
13:8
LOUT2VOL
00000
(0dB)
7
ZC
0
6
INV
0
5:0
ROUT2VOL
00000
(0dB)
0
16h
8
SRC
Table 17 LOUT2 / ROUT2 Control
Note:
1.
For BTL speaker drive, it is recommended that LOUT2VOL = ROUT2VOL.
相關(guān)PDF資料
PDF描述
WM9712LEFV AC97 Audio and Touchpanel CODEC
WM9712LSEFL AC97 Audio and Touchpanel CODEC
WM9712LSEFT AC97 Audio and Touchpanel CODEC
WM9712LSEFV AC97 Audio and Touchpanel CODEC
WME128K8-XXX 128Kx8 CMOS MONOLITHIC EEPROM, SMD 5962-96796
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
WM9712LEFT/RV 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC
WM9712LEFV 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC
WM9712LGEFL/RV 功能描述:接口—CODEC STR AC’97 CODEC TP 48-pin TQFP RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
WM9712LGEFL/V 功能描述:接口—CODEC Stereo AC’97 CODEC T/P Interface RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
WM9712LSEFL 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC
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