CL-CS3712 Datasheet, PDF (1/26 Pages) Cirrus Logic – Integrated AVI/ATAPI DVD Drive Manager

PRELIMINARY DRAFT
CL-CS3712
Integrated AVI/ATAPI DVD
Drive Manager Datasheet
Features
• Integrates all required components for a complete AVI
or ATAPI interface DVD drive (front-end) electronics
solution:
- RF amp
- Data channel
- Servo control processor
- DVD ECC (error correction code)
- CSS (content scramble system)
- ATAPI decoder
• Reads DVD+RW, DVD-ROM, DVD-RW, CDDA, CD-
ROM, CD-R, CD-RW, VCD, and DVCD discs
• Direct Audio/Video interface for DVD player
applications
• ATAPI interface for game console and DVD loader
solutions
• High-performance controller supports DVD disc speeds
up to 8x and CD-ROM disc speeds up to 40x
• Partial Response Maximum Likelihood (PRML) data
channel
• Servo Control Processor (SCP) on-chip
• DVD navigation support
• 208-pin LQFP/EPAD packages
Overview
The CL-CS3712 is Cirrus Logic’s high-integration, high-
performance ATAPI DVD drive manager. It integrates all
required components for a DVD loader for DVD players,
game consoles, and DVD-ROM drives. The CL-CS3712
includes an RF amp, servo control processor, data
channel, DVD ECC, CSS authorization, CD-ROM
decoder, and ATAPI interface.
The CL-CS3712 can be configured with an audio DAC
(digital-to-analog converter), external buffer memory (8- or
16-bit DRAM), a local micro-controller with its RAM and
ROM, and power drivers to create a complete DVD-ROM
electronics solution.
The CL-CS3712 supports DVD disc speeds up to 8x and
Ultra DMA host speeds up to 33.3 Mbytes/sec.
The RF signal is over-sampled by a high-speed ADC
(analog-to-digital converter). The timing loop is closed in
the digital domain with variable decimation and
interpolation used to provide the output samples to the
data recovery logic. A channel-quality logic circuit is
provided to allow parametric calibration.
The CL-CS3712 data channel supports partial response
maximum likelihood (PRML) data acquisition, providing
state-of-the-art data recognition in a noisy environment,
coming from the pick-up head.
Block
Diagram
TO POWER
DRIVERS
FROM
IV AMP
SAMPLE
RATE GEN
VGA
ADCS
DACS
SPINDLE
CONTROL
RAM
SCP
CHANNEL
QUALITY
BAC
CAPTURE
SUM &
VGA
LOW PASS
FILTER
RF
ADC
SYNTHESIZER
DPLL &
DATA CHNL
LAYERED ECC
& DVD ECC
8/16
DEMOD
EFM
DEMOD
SUB-Q READ
C1/C2 ECC &
DE-INTERLEAVE
SUBCODE
DE-INTERLEAVE
HEADER
SEARCH &
CHECKS
MICRO
INTERFACE
CSS
AUTHENTIFICATION
FROM
SENSORS
LOCAL
MICROCONTROLLER
CSS
DESCRAMBLE
HOST
INTERFACE
NAVIGATION
BUFFER
MANAGER
ATAPI OR
MPEG
BUFFER
MEMORY
CL-CS3712
DS588PP1 - rev 0.4 April 11, 2002
© Copyright 2002 Cirrus Logic Inc.
CONFIDENTIAL
www.cirrus.com