WM9713L/WOLFSON，AC’97 Audio + Touchpanel CODECAC ' 97音频+ Touchpanel编解码器

• AC’97 Rev 2.2 compatible stereo codec 
- DAC SNR 94dB, THD –85dB 
- ADC SNR 87dB, THD –86dB 
- Variable Rate Audio, supports all WinCE sample rates 
- Tone Control, Bass Boost and 3D Enhancement 
• On-chip 45mW headphone driver 
• On-chip 400mW mono or stereo speaker drivers 
• Stereo, mono or differential microphone input 
- Automatic Level Control (ALC) 
- Mic insert and mic button press detection 
• Auxiliary mono DAC (ring tone or DC level generation) 
• Seamless interface to wireless chipset 
• Resistive touchpanel interface 
- Supports 4-wire and 5-wire panels 
- 12-bit resolution, INL ±2 LSBs (<0.5 pixels) 
- X, Y and touch-pressure (Z) measurement 
- Pen-down detection supported in Sleep Mode 
• Additional PCM/I2
S interface to support voice CODEC 
• PLL derived audio clocks. 
• Supports input clock ranging from 2.048Mhz to 78.6Mhz 
• 1.8V to 3.6V supplies (digital down to 1.62V, speaker up to 
4.2V) 
• 7x7mm 48-pin QFN package 
APPLICATIONS 
• Personal Digital Assistants (PDA) with or without phone 
• Smartphones 
• Handheld and Tablet Computers

•AC ' 97转速2.2兼容立体声编解码器

- DAC信噪比94 db,-85分贝

- ADC信噪比87 db,-86分贝

——可变利率音频,支持所有畏缩样本率

——音调控制、低音增强和3 d增强

•芯片上45兆瓦耳机驱动程序

•芯片上的400 mw单声道或立体声扬声器驱动程序

•立体声,mono或微分麦克风输入

——自动电平控制(ALC)

——麦克风插入和麦克风按钮按下检测

•辅助mono DAC(铃声或直流级别生成)

•无缝接口无线芯片组

•电阻touchpanel接口

——支持四线和5-wire面板

- 12位分辨率,INL±2 lsb(< 0.5像素)

- X,Y和touch-pressure(Z)测量

——Pen-down检测支持睡眠模式

•额外的PCM / I2

接口以支持语音编解码器

•锁相环提取音频时钟。

•支持输入时钟从2.048 mhz至78.6 mhz

•1.8 v至3.6 v供应(数字降至1.62 v,议长

4.2 v)

•7 x7mm 48-pin QFN包

应用程序

•个人数字助理(PDA)有或没有电话

•智能手机

•手持和平板电脑