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PDF CXA1821 Data sheet ( Hoja de datos )
| Número de pieza | CXA1821 | |
| Descripción | RF Amplifier for CD Players | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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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
1 page  
CXA1821M
–5–
5 Page 
CXA1821M
Example of Representative Characteristics
Current consumption characteristics
10
9
8
7
6
5
4
2 3 4 5 6 7 8 9 10 11
Single power supply voltage (V)
30
26
22
18
14
10
100
RF amplifier frequency characteristics
Supply voltage ±2.5V
RF Amp 100 mV input
A + B + C + D input
∗ Short between VC and GND
1k
10k 100k 1M
10M
Frequency (Hz)
FE amplifier frequency characteristics
(Frequency response comparison for A+C input and B+D input)
30
Supply voltage ±2.5V
FE Amp 260mVp-p input
A + C input
∗
B + D input
Short between VC
and
GND
20
FE amplifier frequency errer characteristics
–30
Supply voltage ±2.5V
FE Amp 260mVp-p input
A + C + B + D input
∗ Short between VC and GND
–40
10 –50
0
100
1k
–60
10k
100k
100
1k
10k 100k
Frequency (Hz)
Frequency (Hz)
– 11 –
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet CXA1821.PDF ] | |
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