●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, auxiliary DAC is provided which may be used to support generation of supervisory tones, or ring-tones at different sample rates to the main codec.
●FEATURES
●• 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/I2S 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-lead QFN package
●APPLICATIONS
●• Personal Digital Assistants (PDA) with or without phone
●• Smartphones
●• Handheld and Tablet Computers
