DESCRIPTION
The WM9715L is a highly integrated input / output device designed for mobile computing and communications. The device can connect directly to a 4-wire or 5-wire touchpanel, mono or stereo microphones, stereo headphones and a mono speaker, reducing total component count in the system. Additionally, phone input and output pins are provided for seamless integration with wireless communication devices.

FEATURES
• AC’97 Rev 2.2 compatible stereo codec
    - DAC SNR 90dB, THD –86dB
    - ADC SNR 88dB, THD –88dB
    - Variable Rate Audio, supports all WinCE sample rates
    - Tone Control, Bass Boost and 3D Enhancement
• On-chip 45mW headphone driver
• On-chip 400mW mono speaker driver
• Stereo, mono or differential microphone input
    - Automatic Level Control (ALC)
• 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 ±3 LSBs (<0.5 pixels)
    - X, Y and touch-pressure (Z) measurement
    - Pen-down detection supported in Sleep Mode
• 2 comparator inputs for battery monitoring
• Up to 4 auxiliary ADC inputs
• 1.8V to 3.6V supplies
• 7x7mm QFN

APPLICATIONS
• Personal Digital Assistants (PDA)
• Smartphones
• Handheld and Tablet Computers