ALC5611

AC'97 AUDIO CODEC + TOUCH PANEL CONTROLLER

The ALC5611 is a highly-integrated AC'97 interface audio codec with multiple input/output ports and a 4-wire touch panel controller.

The ALC5611 is designed for mobile computing and communications.

Stereo audio is supported via the AC'97 interface. To reduce component count, the device can connect directly to:

A 4-wire touch panel
MONO or stereo differential analog inputs
Stereo headphone
Single-end or BTL MONO output
MONO or Stereo Bridge-Tied Load (BTL) speaker
Multiple analog input and output pins are provided for seamless integration with analog connected wireless communication devices. Differential input/output connections efficiently reduce noise interference, providing better sound quality. Class-AB or Class-D amplifiers are easily swapped via simple register configuration, and the 1 Watt speaker removes the need for an additional amplifier, further cutting both cost and required board area. Additionally, a flexible hardware 5-band equalizer with configurable gain, bandwidth, and center frequency, and enriches the sound experience.
The ALC5611 operates at supply voltages from 1.8 to 5 Volts. To extend battery life, each section of the device can be powered down individually under software control. Leakage current in maximum power saving state is less than 10uA.
The ALC5611 is available in a 7x7mm ‘Green’ QFN package, making it ideal for use in handheld portable systems.

16-bit DAC SNR 90dB, THD+N -85dB
16-bit ADC SNR 85dB, THD+N -80dB
Supports all WinCE variable rates (8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz)

One analog stereo input (LINE-IN)
One analog MONO single-ended or differential input (PHONE and PHONEN input)
Stereo, single-ended MONO, or differential analog microphone inputs, with boost pre-amplifiers (+20/+30/+40dB)
BTL (Bridge-Tied Load) Max. output with on-chip 1W speaker driver (SPKVDD=5V, 8W load)
Stereo headphone output with on-chip 45mW headphone driver (HPVDD=3.3V, 16W load)
25mW SE or 75mW BTL MONO output support (AVDD=3.3V, 32W load)
Microphone switch detection
Power management and enhanced power saving
Supports digital 5 band equalizer (EQ)
Supports digital spatial sound and pseudo stereo effect
Supports pop noise suppression
nternal PLL can receive wide range of clock input (Digital IO power > 2.3V)
Digital power supplies from 1.8V to 3.6V, speaker amplifier power supplies from 2.3V to 5V
Analog power, headphone power, and touch panel power supplies from 2.3V to 3.6V
Resistive touch panel interface