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WM8750LEFL PDF预览

WM8750LEFL

更新时间： 2024-11-22 22:07:47
品牌 Logo 应用领域
欧胜 - WOLFSON 解码器编解码器电信集成电路便携式PC
页数 文件大小 规格书
56页 658K
描述
STEREO CODEC FOR PORTABLE AUDIO APPLICATIONS

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中文翻译

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WM8750LEFL 技术参数

是否Rohs认证： 不符合生命周期：Transferred
Reach Compliance Code：unknown风险等级：5.62
Is Samacsys：N湿度敏感等级：1
Base Number Matches：1

WM8750LEFL 数据手册

 浏览型号WM8750LEFL的Datasheet PDF文件第2页浏览型号WM8750LEFL的Datasheet PDF文件第3页浏览型号WM8750LEFL的Datasheet PDF文件第4页浏览型号WM8750LEFL的Datasheet PDF文件第5页浏览型号WM8750LEFL的Datasheet PDF文件第6页浏览型号WM8750LEFL的Datasheet PDF文件第7页 
WM8750L  
Stereo CODEC for Portable Audio Applications  
DESCRIPTION  
FEATURES  
•
•
•
DAC SNR 98dB (‘A’ weighted), THD -95B at 48kHz, 3.3V  
ADC SNR 95dB (‘A’ weighted), THD -90dB at 48kHz, 3.3V  
Complete Stereo / Mono Microphone Interface  
The WM8750L is a low power, high quality stereo codec  
designed for portable digital audio applications.  
The device integrates complete interfaces to stereo or mono  
microphones and a stereo headphone. External component  
requirements are drastically reduced as no separate  
microphone or headphone amplifiers are required.  
Advanced on-chip digital signal processing performs  
graphic equaliser, 3-D sound enhancement and automatic  
level control for the microphone or line input.  
-
Programmable ALC / Noise Gate  
•
•
On-chip 400mW BTL Speaker Driver (mono)  
On-chip Headphone Driver  
-
-
-
>40mW output power on 16Ω / 3.3V  
THD –80dB at 20mW, SNR 90dB with 16Ω load  
No DC blocking capacitors required (capless mode)  
•
•
•
Separately mixed mono output  
Digital Graphic Equaliser  
Low Power  
The WM8750L can operate as a master or a slave, with  
various master clock frequencies including 12 or 24MHz for  
USB devices, or standard 256fs rates like 12.288MHz and  
24.576MHz. Different audio sample rates such as 96kHz,  
48kHz, 44.1kHz are generated directly from the master  
clock without the need for an external PLL.  
-
-
7mW stereo playback (1.8V / 1.5V supplies)  
14mW record & playback (1.8V / 1.5V supplies)  
•
Low Supply Voltages  
-
-
-
Analogue 1.8V to 3.6V  
Digital core: 1.42V to 3.6V  
Digital I/O: 1.8V to 3.6V  
•
•
256fs / 384fs or USB master clock rates: 12MHz, 24MHz  
Audio sample rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48,  
88.2, 96kHz generated internally from master clock  
5x5x0.9mm QFN package  
The WM8750L operates at supply voltages down to 1.8V,  
although the digital core can operate at voltages down to  
1.42V to save power, and the maximum for all supplies is  
3.6 Volts. Different sections of the chip can also be powered  
down under software control.  
•
APPLICATIONS  
The WM8750L is supplied in a very small and thin 5x5mm  
QFN package, ideal for use in hand-held and portable  
systems.  
•
•
•
•
MP3 Player / Recorder  
AAC/WMA/Multi-Format Player / Recorder  
Minidisc Player / Recorder  
Portable Digital Music Systems  
BLOCK DIAGRAM  
DGND  
DCVDD  
DBVDD  
HPGND  
HPVDD  
OUT3SW  
LMIXSEL  
M
U
X
VREF  
ROUT1  
M
U
X
-1  
OUT3  
MONOOUT  
LEFT  
MIXER  
LI2LO  
DC MEASUREMENT  
WM8750L  
LD2LO  
RD2LO  
LD2MO  
RD2MO  
LD2RO  
RD2RO  
LINPUT1  
LINPUT2  
LINPUT3  
LOUT1  
M
U
X
PGA  
+ MIC  
BOOST  
LOUT1VOL  
MONOVOL  
ROUT1VOL  
RI2LO  
LI2MO  
DIGITAL  
ADC  
ADC  
DAC  
DAC  
FILTERS  
DIGITAL  
FILTERS  
MONO  
MIXER  
LINSEL  
DIFF.  
INPUT  
L1-R1 OR  
L2-R2  
VOLUME  
MONOOUT  
(phone TX)  
ANALOGUE  
MONO MIX  
GRAPHIC  
DIGITAL  
EQUALISER  
MONO MIX  
BASS  
RINSEL  
RI2MO  
LI2RO  
3D  
BOOST  
RINPUT3/  
HPDETECT  
RIGHT  
MIXER  
ENHANCE  
M
U
X
PGA  
+ MIC  
BOOST  
RINPUT2  
RINPUT1  
ROUT1  
DC MEASUREMENT  
RI2RO  
M
U
X
LOUT2  
ROUT2  
RMIXSEL  
L - (-R)  
= L+R  
LOUT2VOL  
ROUT2VOL  
ROUT2  
INV  
-1  
MICBIAS  
AUDIO  
INTERFACE  
CLOCK  
CIRCUITRY  
CONTROL  
INTERFACE  
50K  
50K  
Product Preview, May 2003, Rev 1.77  
WOLFSON MICROELECTRONICS plc  
www.wolfsonmicro.com  
Copyright 2003 Wolfson Microelectronics plc  
1234567...56

中文翻译

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