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參數資料
| 型號： | WM8753LGEF |
| 廠商： | Wolfson Microelectronics |
| 元件分類： | Codec |
| 英文描述： | HI FI AND TELEPHONY DUAL CODEC |
| 中文描述： | 高保真度的音響和電話雙通道編解碼 |
| 文件頁數： | 1/87頁 |
| 文件大小： | 1033K |
| 代理商： | WM8753LGEF |
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WM8753L
Hi-Fi and Telephony Dual Codec
DESCRIPTION
WOLFSON MICROELECTRONICS plc
www.wolfsonmicro.com
Advanced Information, June 2004, Rev 3.1
Copyright
2004 Wolfson Microelectronics plc
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.
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.
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 256f
s
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.
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.
FEATURES
Hi-Fi DAC:
interfaced over I
2
S 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
- 40mW output power on 16
/ 3.3V
- with 16
load: SNR 90dB, THD –75dB
- with 10k
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
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
7x7x0.9mm QFN package, 5x5x0.9mm BGA package
APPLICATIONS
MP3 Player / Recorder mobile phone
Bluetooth stereo headset
相關PDF資料 |
PDF描述 |
|---|---|
| WM8753LGEFL | HI FI AND TELEPHONY DUAL CODEC |
| WM8753L | HI FI AND TELEPHONY DUAL CODEC |
| WM8753 | 9V-I GRY BOX (3.25X5.624X1.5) |
| WM8759ED | 24 BIT 192KHZ STEREO DAC WITH HEADPHONE BUFFER |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| WM8753LGEFL | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:HI FI AND TELEPHONY DUAL CODEC |
| WM8753LGEFL/RV | 功能描述:接口—CODEC Stereo CODEC plus PCM CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量: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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| WM8753LGEFL/V | 功能描述:接口—CODEC Stereo CODEC plus PCM CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量: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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| WM8756 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC |
| WM8756EFT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC |
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