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參數(shù)資料
| 型號(hào)： | WM9712LEFL |
| 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： | WM9712LEFL |
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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 |
|---|---|
| WM9712LEFT | AC97 Audio and Touchpanel CODEC |
| WM9712LEFV | AC97 Audio and Touchpanel CODEC |
| WM9712LSEFL | AC97 Audio and Touchpanel CODEC |
| WM9712LSEFT | AC97 Audio and Touchpanel CODEC |
| WM9712LSEFV | AC97 Audio and Touchpanel CODEC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WM9712LEFL/RV | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC |
| WM9712LEFL/V | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC |
| WM9712LEFT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio and Touchpanel CODEC |
| 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 |
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