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
|