Wolfson Microelectronics
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Wolfson Microelectronics is a global leader in the design and manufacture of high-performance, mixed-signal semiconductors for digital applications. Wolfson Microelectronics ICs process highly complex digital data into signals that meet the demand for higher, faster performance required by audio products for the consumer marketplace including digital TVs, set-top boxes, DVDs, as well as portable devices.
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Wolfson Microelectronics AC´97 Audio and Touch Panel CODEC
The AC´97 Audio and Touch Panel CODEC from Wolfson Microelectronics are highly integrated input/output devices for mobile computing and communications. The WM9712L device is equipped with phone input/output pins for seamless integration with wireless communication devices. The device contains up to four auxiliary ADC inputs for analog measurements such as temperature or light, and five GPIO pins for interfacing to buttons or other digital devices. Two uncommitted comparator inputs allow monitoring battery voltage in portable systems. The device can generate interrupts to indicate pen down, pen up, availability of touch panel data, low or dead battery, and GPIO conditions. All device functions are accessed and controlled through a single AC-Link interface that is compliant with AC`97 standard.
Application Notes
Wolfson Microelectronics Stereo CODEC WM8960
The Wolfson Microelectronics' WM8960 is a low-power, high-quality stereo CODEC designed for portable digital audio applications. Stereo class D speaker drivers provide 1W per channel into 8Ω loads with a 5V supply. Low leakage, excellent PSRR, and pop/click suppression mechanisms enable direct battery connection to the speaker supply. The WM8960 has a flexible speaker boost settings allow for maximum speaker output power while minimizing other analog supply currents. External component requirements are drastically reduced as no separate microphone, speaker or headphone amplifiers are required.
Application Notes