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