WM9711_06 WOLFSON [Wolfson Microelectronics plc], WM9711_06 Datasheet
WM9711_06
Manufacturer Part Number
WM9711_06
Description
Low Power Audio CODEC for Portable Applications
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM9711_06.pdf
(65 pages)
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DESCRIPTION
The WM9711L is a highly integrated input / output device
designed for mobile computing and communications. The
device can connect directly to 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.
The WM9711L also offers five GPIO pins for interfacing to
buttons or other digital devices. To monitor the battery
voltage in portable systems, the WM9711L has two
uncommitted comparator inputs.
All device functions are accessed and controlled through a
single AC-Link interface compliant with the AC’97 standard.
Additionally, the WM9711L can generate interrupts to
indicate low battery, dead battery, thermal cut-out and GPIO
conditions.
The WM9711L operates at supply voltages from 1.8 to 3.6
Volts. Each section of the chip can be powered down under
software control to save power. The device is available in a
small leadless 7x7mm QFN package, ideal for use in hand-
held portable systems.
BLOCK DIAGRAM
WOLFSON MICROELECTRONICS plc
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Low Power Audio CODEC for Portable Applications
at
http://www.wolfsonmicro.com/enews/
FEATURES
• AC’97 Rev 2.2 compatible stereo codec
• On-chip 45mW headphone driver
• On-chip 400mW mono speaker driver
• Stereo, mono or differential microphone input
• Auxiliary mono DAC (ring tone or DC level generation)
• Seamless interface to wireless chipset
• Up to 5 GPIO pins
• 2 comparator inputs for battery monitoring
• 1.8V to 3.6V supplies
• 7x7mm QFN
APPLICATIONS
• Personal Digital Assistants (PDA)
• Smartphones
• Handheld and Tablet Computers
- DAC SNR 94dB, THD –87dB
- ADC SNR 92dB, THD –87dB
- Variable Rate Audio, supports all WinCE sample rates
- Tone Control, Bass Boost and 3D Enhancement
- Automatic Level Control (ALC)
Copyright ©2004 Wolfson Microelectronics plc
Production Data, August 2006, Rev 4.3
WM9711L
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