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Sony Semiconductor Electronic Components Datasheet

CXA1821M Datasheet

RF Amplifier for CD Players

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RF Amplifier for CD Players
CXA1821M
Description
The CXA1821M is an IC developed for compact
disc players. This IC incorporates an APC circuit and
RF, focus error, and tracking error amplifiers for 3-
spot optical pickup output. (The voltage-converted
optical pickup output is supported.)
20 pin SOP (Plastic)
Features
Low power consumption (40mW at ±2.5V)
APC circuit
Both single power supply (+5V) and dual power
supply (±2.5V) operations possible.
Compatible with pickup for LC and PD
Supports the RF amplifier at double speed.
Applications
Compact disc players
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta = 25°C)
Supply voltage
VCC
12
Operating temperature Topr –20 to +75
Storage temperature Tstg –65 to +150
Allowable power dissipation
PD 600
V
°C
°C
mW
Operating Conditions
Supply voltage VCC – VEE 2.8 to 11.0
V
Block Diagram and Pin Configuration
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–
E94932-TE


Sony Semiconductor Electronic Components Datasheet

CXA1821M Datasheet

RF Amplifier for CD Players

No Preview Available !

Pin Description
Pin No. Symbol
I/O
1 LD O
Equivalent circuit
VCC VCC
10k
1k
1
55.7k
VEE
CXA1821M
Description
Output pin of APC
amplifier.
2 PD I
147
2
VCC
17µ
55k
10k
Input pin of APC
amplifier.
3A
4B
5C
6D
14 FE BIAS
I
I
I
I
I
A3
B4
C5
D6
24k
30k
24k
30k
24k
30k
24k
30k
7 VEE
VEE VEE VEE VEE
VCC VCC
VCC VCC
28k
4.9k
100µ
25p
174k
87k
Input pin of RF and
FE amplifier for Pins
3, 4, 5 and 6; focus
25p bias adjustment for
Pin 14.
VEE VC
VEE
164k
VC
14
FE BIAS
VEE.
–2–


Part Number CXA1821M
Description RF Amplifier for CD Players
Maker Sony Corporation
Total Page 13 Pages
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