S5L9250B - Samsung semiconductor

S5L9250B 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.

Table 1. Pin Description No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Name VSSA1 VREFI VSSA2 RFRP RFCT SBAD CEI TZCA TE TELPF FE FELPF VCCA2 AOUT PPUMP VSSA3 TRD FOD SLED0 SLED1 SPINDLE VREFO VCCA3 SMON DVSS1 GPIO0 STOP/GPIO PS1/GPIO FG Description Analog ground (EQ controller) VREF input Analog ground (for servo ADC use) .

Features

• Main Features  Digital servo, CD-DSP, 1-bit DAC.  33.8688MHz crystal.  Supports CLV 4X and 8X.  Supports CAV MAX 16X, 20X, 24X, 32X, 40X, and 48X.  Interrupt (SINTB)  MICOM interface Digital Servo Block  Automatic adjusting feature (focus/tracking loop offset, balance, loop gain)  Built-in AGC feature that adapts to work optimally with various disc types  Built-in search algorithm for speed control  Servo monitor signal generation (FOK, MIRROR, TZC, ANTI-SHOCK)  Various loop filter coefficient selection by MICOM  Built-in algorithm for handling defects/shocks  Disc discriminatin.