WM9713LGEFL/V Datasheet

IC型號：
WM9713LGEFL/V
PDF描述：
AC 97 AUDIO + TOUCHPANEL CODEC
文件大?。?/label>
1061.18KB
PDF頁數(shù)：
111頁
芯片廠家：
WOLFSON

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AC鈥?7 Audio + Touchpanel CODEC

DESCRIPTION

The WM9713L is a highly integrated input/output device

designed for mobile computing and communications.

The chip is architected for dual CODEC operation,

supporting Hi-Fi stereo Codec functions via the AC link

interface, and additionally supporting voice Codec functions

via a PCM type Synchronous Serial Port (SSP). A third Aux

DAC is provided which may be used to support generation

of supervisory tones, or ring-tones etc. at different sample

rates to the main codec.

The device can connect directly to a 4-wire or 5-wire touch-

panel, mono or stereo microphones, stereo headphones

and a stereo speaker, reducing total component count in the

system. Cap-less connections to the headphones,

speakers, and earpiece may be used, saving cost and

board area. Additionally, multiple analog input and output

pins are provided for seamless integration with analog

connected wireless communication devices.

All device functions are accessed and controlled through a

single AC-Link interface compliant with the AC鈥?7 standard.

The 24.576 MHz masterclock can be input directly or

generated internally from a 13MHz (or other frequency)

clock by an onboard PLL. The PLL supports a wide range

of input clock from 2.048Mhz to 78.6Mhz.

The WM9713L operates at supply voltages from 1.8 to 3.6

Volts. Each section of the chip can be powered down under

software control to save power. The device is available in a

small leadless 7x7mm QFN package, ideal for use in hand-

held portable systems.

WM9713L

FEATURES

鈥?/div>

AC鈥?7 Rev 2.2 compatible stereo codec

- DAC SNR 94dB, THD 鈥?5dB

- ADC SNR 87dB, THD 鈥?6dB

- Variable Rate Audio, supports all WinCE sample rates

- Tone Control, Bass Boost and 3D Enhancement

鈥?/div>

On-chip 45mW headphone driver

鈥?/div>

On-chip 400mW mono or stereo speaker drivers

鈥?/div>

Stereo, mono or differential microphone input

- Automatic Level Control (ALC)

- Mic insert and mic button press detection

鈥?/div>

Auxiliary mono DAC (ring tone or DC level generation)

鈥?/div>

Seamless interface to wireless chipset

鈥?/div>

Resistive touchpanel interface

- Supports 4-wire and 5-wire panels

- 12-bit resolution, INL

鹵2

LSBs (<0.5 pixels)

- X, Y and touch-pressure (Z) measurement

- Pen-down detection supported in Sleep Mode

鈥?/div>

Additional PCM/I

S interface to support voice CODEC

鈥?/div>

PLL derived audio clocks.

鈥?/div>

Supports input clock ranging from 2.048Mhz to 78.6Mhz

鈥?/div>

1.8V to 3.6V supplies (digital down to 1.62V, speaker up to

4.2V)

鈥?/div>

7x7mm 48-pin QFN package

APPLICATIONS

鈥?/div>

Personal Digital Assistants (PDA) with or without phone

鈥?/div>

Smartphones

鈥?/div>

Handheld and Tablet Computers

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

www.wolfsonmicro.com

Preliminary Technical Data, March 2004, Rev 2.2

餂?004

Wolfson Microelectronics plc

制造商
Wolfson Microelectronics
產品種類
音頻編解碼器
ADC 輸入端數(shù)量
1
DAC 輸出端數(shù)量
1
轉換速率
8 KSPs
接口類型
AC97
分辨率
12 bit
最大工作溫度
+ 85 C
安裝風格
SMD/SMT
封裝 / 箱體
QFN-48
封裝
Tray
最小工作溫度
- 25 C
通道數(shù)量
1 ADC, 1 DAC
工廠包裝數(shù)量
416

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