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MFG:ROHM  Package Cooled:QFP  

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Part Number: BU9321BKS

 

MFG: ROHM

Package Cooled: QFP

 

Description: The BU9321BKS is a servo signal processor for CD players that incorporates a double-speed, no-adjustme...


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BU9321BKS General Description


The BU9321BKS is a servo signal processor for CD players that incorporates a double-speed, no-adjustment PLL, program servo, and signal processing block on one chip. It operates off a low power supply voltage, and has low power consumption.

BU9321BKS Maximum Ratings

Parameter
Symbol
Limits
Unit
Power supply voltage
VDD
4.5
V
Power dissipation
PD
400(1)
mW
Operating temperature
Topr
-25~+75
Storage temperature
Tstg
-55~+125

(1)Reduced by 4 mW for each increase in Ta 1 over 25.

BU9321BKS Features

` PLL on chip. Bit clock extraction possible with just a few external components. EFM data modulation is possible.
` Frame synchronizing signal detection and protection.
` Servo filters for focus, tracking, and sled are on chip. Characteristics can be controlled using commands from the controller.
`Sub-code serial output pin provided.
` Output pins for both P-code and Q-code.
` CLV sequencer automatically determines the CLV mode.
` Track jump sequencer on chip. Possible to jump any number of tracks.
` De-interleave function, and 2-level error detection, correction and flag processing for C1 and C2.
` The signal to the DAC is output by the MSB first 2'SCOMP serial out, and offset circuit ON and OFF
    can be controlled for CD-ROM compatibility.
` 16 kilobits of on-chip SRAM absorb ±4 frames of jitter.
` Double-speed playback is possible.

BU9321BKS Typical Application

·Portable CD players, radio cassette players, and minicomponent systems

BU9321BKS datasheet

BU9321BKS
PDF/DataSheet Download

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