72006HKIM No.7974-1/11
LC83210W
Overview
The LC83210W is an IC that integrates all the functions required for Dolby headphone and Dolby Virtual Speaker in a
single chip. This IC generates Dolby headphone or Dolby Virtual Speaker audio output signals from either a 5.1-channel
or 2-channel audio input. It provides DH2 and stereo mixdown as Dolby Headphone room modes, and can be used in any
product that has a headphone jack. This IC also supports REFERENCE and WIDE Dolby Virtual Speaker modes.
Features
Dolby headphone room mode processing functions: DH2, stereo mixdown
Dolby Virtual Speaker mode processing functions REFERENCE,WIDE
Supported sampling rates: 32kHz, 44.1kHz and 48kHz
No external memory required
Audio interfaces
Serial audio input: 2-channels (left and right) or 5.1-channels (left, center, right, left surround, right surround, and
low frequency effect)
Serial audio output: 2-channels (left and right)
Formats: I2S (24 bits), left justified (24 bits), right justified (16, 18, 20, or 24 bits)
Muting
Host interface: The IC registers can be set using serial data sent over the microcontroller interface, or can be set in
parallel using IC pins.
PLL stop pin
Package form and power supply
Package: SQFP48
Operating supply voltages: Logic system: 2.5V, I/O system: 3.3V
Operating clock frequency: Approx. 50MHz (external clock: 27MHz/13.5 MHz or 512fs/256fs clock)
Ordering number : EN7974B
CMOS IC
Single-chip Dolby Virtual Speaker IC
Dolby and the Dolby-D symbol are registered trademarks of Dolby Laboratories, Inc.
This IC can be used only by Dolby licensees.
Licensing information and the corresponding technical information are available from: Dolby Licensing Corporation
San Francisco C-94103-4813.