參數(shù)資料
型號： XWM8731EDS
廠商： Wolfson Microelectronics
元件分類： Codec
英文描述： Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates
中文描述： 便攜式互聯(lián)網(wǎng)三極管編解碼器的耳機(jī)驅(qū)動器和可編程采樣率
文件頁數(shù)： 28/56頁
文件大?。?/td> 595K
代理商： XWM8731EDS
WM8731
Advanced Information
WOLFSON MICROELECTRONICS LTD
AI Rev 2.0 February 2001
28
The recommended external components required to complete the application are shown in Figure 21.
AGND
R1
C1
AGND
HPOUT
Figure 21 Headphone Output Application Drawing
Recommended values are C1 = 220uF (10V electrolytic), R1 = 47k
C1 forms a DC blocking capacitor to isolate the dc of the HPOUT from the headphones. R1 form a
pull down resistor to discharge C1 to prevent the voltage at the connection to the headphones from
rising to a level that may damage the headphones.
BYPASS MODE
The WM8731 includes a bypass mode whereby analogue line inputs are routed directly to the
analogue line outputs and headphone outputs. The scheme for this is in Figure 22.
12.5K
VMID
LINEIN
VMID
HPOUT
VMID
FROM
LINE
INPUTS
LINEOUT
FROM
DAC
BYPASS (ON)
DACSEL (OFF)
SIDETONE (OFF)
Figure 22 Signal Routing in Bypass Mode
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XWM8733ED 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:102dB Stereo DAC
XWM8734EDS 功能描述:接口—CODEC Stereo CODEC 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
XWM8734EDS/R 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Stereo Audio CODEC
XWM8734EDS/RV 功能描述:接口—CODEC Stereo CODEC 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
XWM8734EDS/V 功能描述:接口—CODEC Stereo CODEC 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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