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| 01W146A Signal processor LSI with pre-servo amplifier for CD players BU9532KS2 Description BU9532KS2 is a digital signal processor LSI with built-in pre-servo amplifier developed for CD players. This built-in pre-servo amplifier is applied to the RW functions of the compact disc. Combining ROHM's BU24393 - a system micro controller with this new DSP BU9532KS2 provides an extremely simplified CD system. Dimension (Units : mm) 12.0 0.3 10.0 0.2 39 27 26 12.0 0.3 10.0 0.2 40 52 1 14 13 1.4 0.1 0.1 0.1 Features 1) Built-in pre-servo amplifier for playing CD-RW 2) Tracking, Focus automatic control 3) Symmetry correction function 4) Built-in x8 over sampling filter + 1 bit DAC 5) Digital bass boost, soft mute function 0.65 0.3 0.1 0.15 SQFP-T52 Applications Portable CD players, CD radio cassette players Absolute Maximum Ratings (Ta=25C) Parameter Maximum applied voltage Power dissipation Operating temperature range Storage temperature range Derating : 8.5mW/C for operation above Ta=25C Symbol Vcc Pd Topr Tstg Limits 4.5 850 -25 -55 ~ ~ 75 125 Unit V mW C C April, 2002 0.5 0.125 0.1 Recommended Operating Conditions (Ta=25C) Parameter Operating power supply voltage Symbol VDD Min. 2.5 Typ. Max. 3.3 Unit V Electrical characteristics (Unless otherwise noted; Ta=25C, Vcc=3.0V) Parameter Circuit current Audio-DAC distortion Audio-DAC Dynamic range Audio-DAC S/N rate Servo-ADC Max. conversion voltage Servo-ADC Min. conversion voltage Servo-DAC Max. output voltage Servo-DAC Min. output voltage RF amplifier Max. output amplitude RF amplifier Min. output amplitude Symbol Io THD DR S/N VADH VADL VDAH VDAL VRFH VRFL Min. 1.0 -1.4 0.8 1.1 Typ. 25 0.01 90 96 1.2 -1.2 1.2 -1.2 1.3 -1.3 Max. 32 1.4 -1.0 -0.8 -1.1 Unit mA % dB dB V V V V V V 0dB,1KHZ -60dB,1KHZ Conditions Block Diagram 45 RFRPRFM 46 TZCRFM 43 RDACO 42 VCDAC 44 AGND2 41 LDACO 40 AVDD2 50 CAGC 52 EQO 48 TEO 49 TEN 51 RFI AVDD1 1 AC BD VBIAS E F PKC FEN FEO 2 3 47 SC RF Signal Gen. 1bit DAC 39 DGND 38 XO 37 XI Servo Signal Gen. 4 5 6 7 8 9 x8 Over Sampling Digital Filter Digital Servo Filter Digital Servo Signal Processor Digital Signal Processor 36 DVDD 35 XPLCK 34 MONI1 33 MONI0 32 BUSY 31 RESETX 30 R/W 29 DOUT 28 DIN 27 MCK 16K SRAM BTC 10 PD 11 LD 12 ASY 13 APC PLL PCO 14 FCO 15 AGND1 16 FDOUT 17 Command Interface BU9532KS2 JUMPO 18 TDOUT 19 SDIN 20 SDOUT 21 CLVOUT 22 CLK88 23 LON 24 CLK 25 SUBSYQ 26 |
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