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S5L9250B01-Q0R0 Datasheet

  • S5L9250B01-Q0R0

  • The CD-ROM 48X 1 chip receives the input signal read from th...

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DATA SHEET
S5L9250B
INTRODUCTION
The CD-ROM 48X 1 chip receives the input signal read from the CD-DA/VIDEO-CD/CD-ROM disc after handling
by the RF amplifier. The signal is input into the digital servo block which has a built-in DSP core, and goes
through focus and tracking adjustments. The RF signal input into a data path goes through the data slicer, PLL,
EFM demodulator, C1/C2 ECC and the audio handling block. In the case of a CD-DA, the signal is output through
the 1-bit DAC. In the case of a CD-ROM, the signal is input into an external CD-ROM controller for handling, then
transmitted to the host through the ATAPI I/F. Also, if you operate the CD-DA in audio buffering mode while
already in CAV mode, the signal is stored in the CD-ROM controller DRAM at high speed, then output at 1x from
the CD-ROM controller, after passing through the 1-bit DAC built-in to the S5L9250B.
FEATURES
鈥?/div>
Main Features
錚?/div>
Digital servo, CD-DSP, 1-bit DAC.
錚?/div>
33.8688MHz crystal.
錚?/div>
Supports CLV 4X and 8X.
錚?/div>
Supports CAV MAX 16X, 20X, 24X, 32X, 40X, and 48X.
錚?/div>
Interrupt (SINTB)
錚?/div>
MICOM interface
Digital Servo Block
錚?/div>
Automatic adjusting feature (focus/tracking loop offset, balance, loop gain)
錚?/div>
Built-in AGC feature that adapts to work optimally with various disc types
錚?/div>
Built-in search algorithm for speed control
錚?/div>
Servo monitor signal generation (FOK, MIRROR, TZC, ANTI-SHOCK)
錚?/div>
Various loop filter coefficient selection by MICOM
錚?/div>
Built-in algorithm for handling defects/shocks
錚?/div>
Disc discriminating data out (FEpk, SBADpk)
錚?/div>
RF IC and serial interface
錚?/div>
Built-in 10-bit DAC (Focus/Tracking/SLD)
錚?/div>
OAK DSP core
鈥?/div>
鈥?/div>
CD Digital Signal Processing Block
錚?/div>
Wide capture range analog PLL
錚?/div>
Data Slicer using duty feedback method
錚?/div>
EFM demodulation
錚?/div>
Sync detection, protection, insertion
錚?/div>
CLV, CAV disc spindle motor control
錚?/div>
C1/C2 ECC
錚?/div>
Built-in 16 K SRAM for ECC
錚?/div>
Subcode P - W handling feature
錚?/div>
CD-DA Audio handling feature
錚?/div>
SUB-Q De-interleaving & CRC check
錚?/div>
High speed data transmission support by CD-ROM decoder block for audio buffering (sync mode
selection
between subcode sync and CD-DA data)
錚?/div>
Digital audio out block
錚?/div>
Subcode sync. Insertion, Protection
1

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