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PDF FAN7021 Data sheet ( Hoja de datos )
| Número de pieza | FAN7021 | |
| Descripción | CMOS Power Amplifier | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FAN7021 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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FAN7021
CMOS Power Amplifier
www.fairchildsemi.com
Features
• Continuous Average Power is 1.0W (8Ω)
• Low THD: Under 0.2% (5V)
• Do not Need Output Coupling Capacitor or Bootstrap
Capacitor
• Low Shutdown Current: 0.01µA
• Shutdown: High Active
• Built in Reduction Circuit for Popping noise
• Built in TSD Circuit
Typical Applications
• Cellular Phone
• Portable Computer
• Audio Systems
Description
The FAN7021 is a bridge connected audio power amplifier
capable of delivering 1W of continuous average power to an
8Ω load with less than 0.2%(THD) from a 5V power supply.
The FAN7021 require few external components and operate
on low supply voltage from 2.0V to 5.5V. Since the
FAN7021 does not require output coupling capacitor,
bootstrap capacitors, or snubber networks, it is ideally suited
for low power portable systems that require minimum
volume and weight. The FAN7021 feqtures an externally
controlled, low power consumption shutdown mode (0.01
uA,typ). Additional FAN7021 features include thermal
shutdown protection, unity gain stability, and external gain
set.
8-SOP-225
Internal Block Diagram
1
IN- 4
IN+ 3
BP 2
SD 1
VDD 6
Bias
20kΩ
20kΩ
5 VO1
8 VO2
100kΩ
100kΩ
7 GND
©2002 Fairchild Semiconductor Corporation
Rev. 1.0.1
1 page  
Performance Characteristics
FAN7021
Figure 1. THD+N versus output power
Figure 3. THD+N versus output power
10
VDD=3.3V
Po=250mW
RL=8
1
0.1
0.01
100
1k
Frequency [Hz]
10k
Figure 5. THD+N versus Frequency
Figure 2. THD+N versus output power
10
VDD=5V
Po=1W
RL=8
1
0.1
0.01
100
1k
Frequency [Hz]
10k
Figure 4. THD+N versus Frequency
10
VDD=2.6V
Po=250mW
RL=8
1
0.1
0.01
100
1k
Frequency [Hz]
10k
Figure 6. THD+N versus Frequency
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet FAN7021.PDF ] | |
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