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Sony Semiconductor Electronic Components Datasheet

CXA1782CQ Datasheet

RF Signal Processing Servo Amplifier for CD players

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CXA1782CQ/CR
RF Signal Processing Servo Amplifier for CD players
For the availability of this product, please contact the sales office.
Description
The CXA1782CQ/CR is a bipolar IC with built-in
RF signal processing and various servo ICs. A CD
player servo can be configured by using this IC,
DSP and driver.
CXA1782CQ
48 pin QFP (Plastic)
CXA1782CR
48 pin LQFP (Plastic)
Features
Low operating voltage (VCC – VEE = 3.0 to 11.0V)
Low power consumption (39mW, VCC = 3.0V)
Supports pickup of either current output, voltage
output
Automatic adjustment comparator for tracking
balance gain
Single power supply and positive/negative dual
power supplies
Applications
• RF I-V amplifier, RF amplifier
• Focus and tracking error amplifier
• APC circuit
• Mirror detection circuit
• Defect detection and prevention circuits
• Focus servo control
• Tracking servo control
• Sled servo control
• Comparators of tracking adjustment for balance
and gain
Absolute Maximum Ratings (Ta = 25°C)
Supply voltage
VCC 12 V
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –65 to +150 °C
Allowable power dissipation
PD 833 (CXA1782CQ) mW
457 (CXA1782CR) mW
Recommended Operating Condition
Operating supply voltage
VCC – VEE 3.0 to 11.0
V
Structure
Bipolar silicon monolithic IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E95908C78


Sony Semiconductor Electronic Components Datasheet

CXA1782CQ Datasheet

RF Signal Processing Servo Amplifier for CD players

No Preview Available !

Block Diagram
CXA1782CQ/CR
36 35
34 33 32
31 30
29 28
27 26
25
APC
LEVEL S
I IL 24 SENS
TTL 23 C.OUT
RF IV AMP1
FE_BIAS 37
RF IV AMP2
F 38
E 39
EI 40
FE AMP
F IV AMP
E IV AMP
TE AMP
VEE 41
TEO 42
LPFI 43
TEI 44
ATSC 45
TZC 46
TDFCT 47
VC 48
•WINDOW COMP.
ATSC
FOK
TTL
I IL
FZC COMP
MIRR
DFCT
•I IL DATA REGISTER •INPUT SHIFT REGISTER
•ADRESS.DECODER
•OUTPUT DECODER
TTL
I IL
TOG1 to 3 FS1 to 4 TG1 to 2 TM1 to 7 PS1 to 4
BAL1 to 3
22 XRST
21 DATA
20 XLT
19 CLK
18 Vcc
HPF COMP LPF COMP
•TRACKING
PHASE COMPENSATION
TM6
TG1
TZC COMP
DFCT
TM1
•FCS PHASE COMPENSATION
FS1
TM5
TM4
TM3
TM7
DFCT
FS4
FS2
TG2
•I SET
17 ISET
16 SL_O
15 SL_M
TM2
14 SL_P
13 TA_O
12
3
45
6
7
89
10 11 12
The switch state in Block Diagram is for initial resetting.
Switch turns to ° side for 1 and to side for 0 in Serial Data Truth Table.
DFCT switch turns to ° side when defect signal generates for DEFECT = E in Serial Data Truth Table.
TG1 switch turns to ° side and TG2 switch is left open when TG1 and TG2 (address 1 : D3) is 1.
–2–


Part Number CXA1782CQ
Description RF Signal Processing Servo Amplifier for CD players
Maker Sony Corporation
Total Page 30 Pages
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