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| 型號(hào)： | WM9712LSEFV |
| 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)： | 30/78頁(yè) |
| 文件大?。?/td> | 689K |
| 代理商： | WM9712LSEFV |
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WM9712L
EAR SPEAKER OUTPUT – OUT3
Production Data
w
PD Rev 4.0 December 2003
30
Pin 37 (OUT3) has a buffer that can drive load impedances down to 16
. It can be used to:
Drive an ear speaker (phone receiver). The speaker can be connected differentially
between OUT3 and HPOUTL, or in single-ended configuration (OUT3 to HPGND). The
ear speaker output is produced by the headphone mixer. The right signal must be
inverted (OUT3INV = 1), so that the left and right channel are mixed to mono in the
speaker [L–(-R) = L+R].
Eliminate the DC blocking capacitors on HPOUTL and HPOUTR. In this configuration,
OUT3 produces a buffered midrail voltage (AVDD/2) and is connected to the headphone
socket’s ground pin (see “Applications Information”)
Produce the inverse of the MONOOUT signal, for a differential mono output.
Note: OUT3 can only handle one of the above functions at any given time.
REGISTER
ADDRESS
16h
OUT3
Control
BIT
LABEL
DEFAULT
DESCRIPTION
15
MUTE
1
Mute OUT3
1: Mute (Buffer OFF)
0: No Mute (Buffer ON)
Source of OUT3 signal
00
inverse of HPOUTR
(for BTL ear speaker)
01
VREF (for capless headphone drive)
10
mono mix of both headphone channels
(for single-ended ear speaker)
11
inverse of MONOOUT
(for differential mono output)
Zero Cross Enable
0: Change gain immediately
1: Change gain only on zero crossings, or after
time-out
OUT3 Volume
000000: 0dB (maximum)
000001: -1.5dB
… (1.5dB steps)
011111: -46.5dB
1xxxxx: -46.5dB
10:9
OUT3
SRC
00
7
ZC
0
5:0
OUT3
VOL
000000
(0dB)
Table 16 OUT3 Control
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WM9713 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC 97 AUDIO + TOUCHPANEL CODEC |
| WM9713-6123-FL48-M | 功能描述:接口—CODEC WM9713EVM MINI EVAL 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 |
| WM9713-6123-FL48-M-S | 功能描述:接口—CODEC WM9713EVM FULL EVAL SYSTEM 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 |
| WM9713CLGEFL/RV | 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 |
| WM9713CLGEFL/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 |
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