Datasheet LM4667MM - National Semiconductor AMP, CLASS D 1.3 W, SMD, 4667, MSOP10 — Datenblatt

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Manufacturer: National Semiconductor

Description: AMP, CLASS D 1.3 W, SMD, 4667, MSOP10

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LM4667 Filterless High Efficiency 1.3W Switching Audio Amplifier
September 2004
LM4667 Filterless High Efficiency 1.3W Switching Audio Amplifier
General Description
The LM4667 is a fully integrated single-supply high efficiency switching audio amplifier.

It features an innovative modulator that eliminates the LC output filter used with typical switching amplifiers. Eliminating the output filter reduces parts count, simplifies circuit design, and reduces board area. The LM4667 processes analog inputs with a delta-sigma modulation technique that lowers output noise and THD when compared to conventional pulse width modulators. The LM4667 is designed to meet the demands of mobile phones and other portable communication devices. Operating on a single 3V supply, it is capable of driving 8 transducer loads at a continuous average output of 450mW with less than 1%THD+N. Its flexible power supply requirements allow operation from 2.7V to 5.5V. The LM4667 has high efficiency with an 8 transduc

Specifications:

• Amplifier Class: D
• Amplifier Type: Power
• Base Number: 4667
• IC Generic Number: 4667
• Load Impedance Min: 8 Ohm
• Load Impedance: 8 Ohm
• Mounting Type: SMD
• Number of Amplifiers: 1
• Number of Channels: 1
• Number of Pins: 10
• Operating Temperature Range: -40°C to +85°C
• Output Power Pout: 1.3 W @ 8 Ohm
• Output Power: 1.3 W
• Package / Case: MSOP
• Power Rating RMS: 1.3 W
• SVHC: No SVHC (19-Dec-2011)
• Supply Voltage + Nom: 6 V
• Supply Voltage Range: 2.7 V to 5.5 V
• THD + N: 0.8% @ 100 mW, VDD=5V

RoHS: Yes