RF AMP & SERVO SIGNAL PROCESSOR
PRELIMINARY
KB9223 / KB9223-L
OVERVIEW The KB9223 is a 1-chip BICMOS integrated circuit to perform the function of RF a...
Description
PRELIMINARY
KB9223 / KB9223-L
OVERVIEW The KB9223 is a 1-chip BICMOS integrated circuit to perform the function of RF amp and servo signal processor for compact disc player applications.It consist of blocks for RF signal processing ,focus, tracking, sled and spindle servo.Also this IC has adjustment free function and embedded opamp for audio post filter.
RF AMP & SERVO SIGNAL PROCESSOR
80-QFP-1420C
FEATURES RF amplifier & RF equalizer Focus error amplifier & servo control Tracking error amplifier & servo control Mirror & defect detector circuit Focus OK detector circuit ORDERING INFORMATION Device KB9223 KB9223-L Package 80-QFP-1420C Tempe. Range -20°C ~ +70°C
APC(Auto Laser Power Control) circuit for constant laser APPLICATIONS power FE bias & focus servo offset adjustment free EF balance & tracking error gain adjustment free Embedded audio post filter The circuit for Interruption countermeasure Double speed play available Operating voltage range KB9223 : 5V KB9223-L : 3.4V RELATED PRODUCT KS9286 Data Processor KS9284 Data Processor KA9258D/KA9259D Motor Driver CD Player Video-CD
M/M-97-P006 1997. 10. 17
1
PRELIMINARY
KB9223 / KB9223-L
BLOCK DIAGRAM
RF AMP & SERVO SIGNAL PROCESSOR
MDATA
TRCNT
RESET
WDCH
ISTAT
LOCK
ATSC
FGD
MCK
MLT
59
54
22
30
29
31
38
37
36
35
51
52
TZC
58
26
28
27
3
RF-
73
FRSH
FE1
TE1
FE2
FLB
FS3
RF Amp
RFO
74
Micom Data Interface Logic
Focus Phase Compensation
& Offset can...
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