Cirrus Logic CS48DV2B - Manual

Copyright 2009 Cirrus Logic FEB ’09
CONFIDENTIAL DS875F2
http://www.cirrus.com
CS48DV2B Data Sheet
CONFIDENTI
A
L
DRA
FT
DELPHI
FEATURES
‰
World’s most cost-effective 32-bit DSP featuring Dolby ®
Volume and Audistry ® by Dolby
— Supports native processing at input Fs up to 48kHz
— Single download image enables support for 32 KHz,
44.1 kHz, and 48 kHz audio input
‰ CS48DV2B supports up to 2.0 channels of audio input
and up to 2.1 channels of output
‰
Enables concurrent processing features beyond Dolby
Volume including Tone Control, Multiband Parametric EQ,
Bass Management, Delays.
‰
Configurable Serial Audio Inputs/Outputs
— Configurable for all input/output digital audio types
(I
2
S/LJ/RJ)
— 32-bit data path delivers uncompromised dynamic
range
— 192 kHz capable integrated S/PDIF transmitter
— DAO can operate in master or slave mode (SCLK &
LRCLK)
‰
Integrated Clock Manager/PLL
— Capable of operating from a wide variety of external
crystals or external oscillators
‰
Slave Host Boot Capability via Serial Interface
— SPI
™
interface capable of running up to 25 MHz
during run time
‰
1.8V Core and 3.3V I/O that is tolerant to 5V input
‰
Low-power Mode enabled
— Energy Star ® Design Compliance Capability via low-
power mode, 268 µW in Standby mode
32-bit
DSP
D
M
A
P X Y
Serial
Control 1
Up to 2.1 Ch
Audio Out
GPIO Debug
Watchdog
TMR1
TMR2
PLL
S/PDIF
2.0 Ch.
Audio In
The new CS48DV2B supports a host of signal processing
applications concurrently, including the mass production-ready
Dolby Volume solution. See
Section 3. for details about
firmware concurrency on the CS48DV2B. The target
applications for the CS48DV2B DSP are:
— Digital Televisions
— Soundbars / DTVs with Integrated Soundbars
— PMD/iPod
®
Docking Stations
— Automotive Head Units
— Automotive Outboard Amplifiers
— Blu-ray Disc ® & DVD Receivers / HTiBs
— PC Speakers
All of these applications and many more that use volume
control and are subject to playback from sources that do not
have consistent volume levels will benefit from the CS48DV2B
Dolby Volume solution.
Ordering Information:
See page 21 for ordering information.