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FAN7040MX fiches techniques PDF

Fairchild Semiconductor - 3W Mono BTL Amplifier with DC Volume Control

Numéro de référence FAN7040MX
Description 3W Mono BTL Amplifier with DC Volume Control
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FAN7040MX fiche technique
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

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