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PDF FAN7040 Data sheet ( Hoja de datos )
| Número de pieza | FAN7040 | |
| Descripción | 3W Mono BTL Amplifier with DC Volume Control | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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www.fairchildsemi.com
FAN7040
3W Mono BTL Amplifier with DC Volume Control
Features
• DC Volume Control : +37dB ~ -52dB
• Few External Components
• Mute Mode
• Thermal Protection
• Short-Circuit Proof
• No Switch-On or Switch-Off Clicks
• Good Overall Stability
• Low Power Consumption
• Low HF Radiation
• ESD Protected On All Pins
Applications
• TVs and Monitors
• Portable Computers
• Desktop computers
• Low Voltage Audio Systems
Description
The FAN7040 is a mono Bridge-Tied Load(BTL) output
amplifier with DC volume control. It is designed for use in
TVs and monitors, but is also suitable for battery-fed porta-
ble recorders and radios. The device is contained in a 20-lead
small outline package.
A Missing Current Limiter(MCL) is built in. the MCL cir-
cuit is activated when the difference in current between the
output terminal of each amplifier exceeds 130mA. This level
of 130mA allows for Single-Ended(SE) headphone applica-
tions.
20SOP
1
Internal Block Diagram
VCC
4
FAN7040
IN 5
VGA
Power Amp
14 OUT+
VC 7
17 OUT-
DC Gain
Control
Missing current
Bandgap
protection
Reference Over-Temperature
Protection
Power Amp
1-3, 8-13, 16, 18 and 20
NC
6
SGND
15
PGND
©2004 Fairchild Semiconductor Corporation
Rev. 1.1.0
1 page  
Performance Characteristics
7.0m
6.0m
5.0m
4.0m
3.0m
2.0m
1.0m
0.0
0
VCC=12V
VC=2V
No load
4 8 12
Supply Voltage [V]
Fig. 1 Supply Current
16
FAN7040
+0
-10
-20 VC=2V, Rs=5kΩ
-30 VC=2V, Rs=0 Ω
-40
-50
-60
-70 VC=0.5V, Rs=5kΩ
-80
-90
20
-100
20
50 100 200
500 1k
2k
5k 10k 20k
50k 100k
Frequency [Hz]
Fig. 2 Power Supply Rejection Ratio
30
20
10 VCC=12V
VC=2V
5 f=1kHz
RL=16Ω
2 BW<22kHz
1
0.5
0.2
0.1
0.05
0.02
0.01
10m
20m
50m 100m 200m
500m
1
2
Output Power [W]
Fig. 3 THD+N vs. Output Power
5 10
10
5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
20
VCC=12V
VC=2V
RL=16Ω
BW<80kHz
50 100 200
500 1k
2k
Frequency [Hz]
Fig. 4 THD+N vs. Frequency
5k
10k 20k
40
20 VCC=12V
0
-20
-40
-60
-80
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
DC Volume Control Voltage [V]
Fig. 5 Gain vs. DC Volume Control
1.0
0.9 VCC=12V
VC=0.8V
0.8
RL=16Ω
THD+N=1%
0.7
0.6
0.5
0.4
0.3
2 4 6 8 10 12 14 16 18 20
Power Supply [V]
Fig. 6 Input Signal Handling
5
5 Page 
Ordering Information
Device
FAN7040M
FAN7040MX
Package
20SOP
Operating Temperature
-40°C ~ +85°C
FAN7040
Remarks
Tube
Tape & Reel
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet FAN7040.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| FAN7040 | 3W Mono BTL Amplifier with DC Volume Control | Fairchild Semiconductor |
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| FAN7040MX | 3W Mono BTL Amplifier with DC Volume Control | Fairchild Semiconductor |
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