Datasheet LM4809MM - National Semiconductor IC, AMP, AUDIO, 105 mW, AB, 8MSOP — Datenblatt

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Manufacturer: National Semiconductor

Description: IC, AMP, AUDIO, 105 mW, AB, 8MSOP

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LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode
April 2004
LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode
General Description
The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16 load with 0.1% (THD+N) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The unity-gain stable LM4809 can be configured by external gain-setting resistors. The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

Specifications:

• Amplifier Class: AB
• Base Number: 4809
• Load Impedance: 16 Ohm
• Number of Channels: 2
• Number of Pins: 8
• Operating Temperature Range: -40°C to +85°C
• Output Power Pout: 105 mW
• Output Power: 105 mW
• Package / Case: MSOP
• SVHC: No SVHC (19-Dec-2011)
• Supply Voltage Range: 2 V to 5.5 V
• THD + N: 0.3% @ 50 mW, 32 Ohm, VDD=5V

RoHS: Yes