CL-CR3475 Datasheet: ATAPI CD-R/RW Encoder/Decoder





CL-CR3475 ATAPI CD-R/RW Encoder/Decoder Datasheet

Part Number CL-CR3475
Description ATAPI CD-R/RW Encoder/Decoder
Manufacture Cirrus Logic
Total Page 4 Pages
PDF Download Download CL-CR3475 Datasheet PDF

Features: CL-CR3470/CR3475 Product Bulletin FEATU RES General — Single-chip integrati on of CD-ROM decoder, CD-ROM encoder, C IRC encoder, EFM modulator, ATIP decode r, buffer manager, and interface to SCS I protocol ICs — DVD port (CL-CR3475 only) — Highly automated and high-p erformance CD-Recordable formatter — High-performance CD-ROM decoder — D esigned for easy and efficient firmwa re programming — High-performance bu ilt-in ATAPI interface — Fully compa tible with the ATAPI Specification SFF -8020 — Automatic power-down interfa ces when idle — 144- and 176-pin LQF P packages available — Built-in cloc k synthesizer s CD-ROM Decoder — Su pports CD-ROM, CD-I, and CD-DA™ (CD-D igital Audio) formats — Supports var ious compact disc DSP (digital signal p rocessor) controllers — Supports dis c speeds up to 65-MHz MCLK — CD spee ds up to 40x (cont.) ATAPI CD-R/RW En coder/Decoder OVERVIEW The CL-CR3470 an d CL-CR3475 are single-chip, highperformance, highly integrated ATAPI interface devices for the CD-.

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CL-CR3470/CR3475
Product Bulletin
FEATURES
General
— Single-chip integration of CD-ROM decoder,
CD-ROM encoder, CIRC encoder, EFM modulator,
ATIP decoder, buffer manager, and interface to SCSI
protocol ICs
— DVD port (CL-CR3475 only)
— Highly automated and high-performance CD-Record-
able formatter
— High-performance CD-ROM decoder
— Designed for easy and efficient firmware
programming
— High-performance built-in ATAPI interface
— Fully compatible with the ATAPI Specification
SFF-8020
— Automatic power-down interfaces when idle
— 144- and 176-pin LQFP packages available
— Built-in clock synthesizer
s CD-ROM Decoder
— Supports CD-ROM, CD-I, and CD-DA(CD-Digital
Audio) formats
— Supports various compact disc DSP (digital signal
processor) controllers
— Supports disc speeds up to 65-MHz MCLK
— CD speeds up to 40x
(cont.)
ATAPI CD-R/RW
Encoder/Decoder
OVERVIEW
The CL-CR3470 and CL-CR3475 are single-chip, high-
performance, highly integrated ATAPI interface devices
for the CD-R/RW (CD-Recordable/CD-Rewritable) mar-
ket. The CL-CR3470/CR3475 integrates CD-ROM
decoder, CIRC encoder, EFM modulation, ATIP
decoder, buffer manager, and ATAPI interface logic. In
addition to its CD-Rewritable capability, the CL-CR3475
features a DVD port enabling drive manufacturers to
develop a drive that reads DVD, CD-ROM, CD-R, and
CD-RW.
The CL-CR3470/CR3475 supports up to 40x read and
10x record disc speeds, allowing customers to preserve
all CD-R/E encode/decode electronics and firmware as
the disc speed requirements increase. All write
methods are supported by the CL-CR3470/CR3475
disc-at-once, track-at-once, packet recording, and
(cont.)
System and Functional
Block Diagram
LOCAL MICROCONTROLLER
ROM/RAM
ATAPI
BUS
MICROCONTROLLER
INTERFACE
ATAPI BUS
INTERFACE
CD-ROM
ENCODER
CD-RW
FORMATTER
ADB
BUFFER
MANAGER
CL-CR3470/CR3475
CD-ROM
DECODER
DVD
PORT
CIRC
ENCODER
EFM
MODULATOR
ATIP
DECODER
ECC
DSP
WRITE
STRATEGY
CD-RW
SERVO
CONTROLLER
DAC
BUFFER MEMORY
July 1998

           






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