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WM8753LGEB/RV

更新时间： 2024-11-23 03:20:11
品牌 Logo 应用领域
欧胜 - WOLFSON 解码器编解码器电话
页数 文件大小 规格书
92页 1038K
描述
Hi-Fi and Telephony Dual CODEC

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中文翻译

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WM8753LGEB/RV 技术参数

生命周期：TransferredReach Compliance Code：unknown
风险等级：5.57Base Number Matches：1

WM8753LGEB/RV 数据手册

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WM8753L  
w
Hi-Fi and Telephony Dual CODEC  
DESCRIPTION  
FEATURES  
The WM8753L is a low power, high quality stereo CODEC  
with integrated Voice CODEC designed for portable digital  
telephony applications such as mobile phone, or headset  
with Hi-Fi playback capability.  
•
•
Hi-Fi DAC: interfaced over I2S type link  
Audio sample rates:  
8, 11.025, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96  
DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)  
ADC SNR 95dB, THD -82dB (‘A’ weighted @ 48kHz)  
On-chip Headphone Driver with cap-less output option  
•
•
•
The device integrates dual interfaces to two differentially  
connected microphones, and includes drivers for speakers,  
headphone and earpiece. External component requirements  
are reduced as no separate microphone or headphone  
amplifiers are required, and Cap-less connections can be  
made to all loads. Advanced on-chip digital signal  
processing performs tone control, Bass Boost and automatic  
level control for the microphone or line input through the  
ADC. The two ADCs may be used to support Voice noise  
cancellation in a partnering DSP, or for stereo recording.  
-
-
-
40mW output power on 16Ω / 3.3V  
with 16Ω load: SNR 90dB, THD –75dB  
with 10kΩ load: SNR 94dB, THD –90dB  
•
•
•
•
•
On-chip speaker driver with 0.5W into 8R  
Voice CODEC: interfaced over Voice interface  
supports sample rates from 8ks/s to 48ks/s  
ADC and DAC SNR 82dB, THD -74dB  
Two Differential Microphone Interfaces  
-
-
Dual ADCs support noise cancellation in external DSP  
Programmable ALC / Noise Gate  
The WM8753L Hi-Fi DAC can operate as a master or a  
slave, with various master clock frequencies including 12 or  
24MHz for USB devices, 13MHz or 19.2MHz for cellular  
systems, or standard 256fs rates like 12.288MHz and  
24.576MHz. Internal PLLs generate all required clocks for  
both Voice and Hi-Fi converters. If audio system clocks  
already exist, the PLLs may be committed to alternative  
uses.  
•
Low-noise bias supplied for electret microphones  
Other Features  
•
•
•
On-chip PLLs supporting 12, 13, 19.2MHz and other clocks  
Cap-less connection options to headphones, earpiece, spkr.  
Low power, low voltage  
-
-
-
1.8V to 3.6V (digital core: 1.42V to 3.6V)  
power consumption <20mW all-on with 2V supplies  
<12mW for PCM CODEC operation  
The WM8753L operates at a nominal supply voltage of 2V,  
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.  
•
7x7x0.9mm QFN package, 5x5x0.9mm BGA package  
APPLICATIONS  
•
•
MP3 Player / Recorder mobile phone  
Bluetooth stereo headset  
WOLFSON MICROELECTRONICS plc  
Pre-Production, November 2005, Rev 3.4  
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/  
Copyright 2005 Wolfson Microelectronics plc  
1234567...92

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