Datasheet LM48820TM/NOPB - National Semiconductor IC, AMP STER HEADPHONE 14MROSMD — Ficha de datos

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Manufacturer: National Semiconductor

Description: IC, AMP STER HEADPHONE 14MROSMD

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Docket:
LM48820 Ground-Referenced, Ultra Low Noise, Fixed Gain, 95mW Stereo Headphone Amplifier
June 2007
LM48820 Ground-Referenced, Ultra Low Noise, Fixed Gain, 95mW Stereo Headphone Amplifier
General Description
The LM48820 is a ground referenced, fixed-gain audio power amplifier capable of delivering 95mW of continuous average power into a 16 single-ended load, with less than 1% THD +N from a 3V power supply.

The LM48820 features a new circuit technology that utilizes a charge pump to generate a negative reference voltage. This allows the outputs to be biased about ground, thereby eliminating output-coupling capacitors typically used with normal single-ended loads. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal number of external components. The LM48820 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other portable applications. The LM48820 features a low

Specifications:

• Amplifier Class: AB
• Base Number: 48820
• Load Impedance Min: 16 Ohm
• Load Impedance: 2 kOhm
• Mounting Type: SMD
• Number of Channels: 2
• Number of Pins: 14
• Operating Temperature Range: -40°C to +85°C
• Output Power Pout: 95 mW
• Output Power: 95 mW
• Package / Case: µSMD
• Power Rating RMS: 95 mW
• SVHC: No SVHC (19-Dec-2011)
• Supply Voltage Range: 1.6 V to 4.5 V
• THD + N: 0.01% @ 60 mW, 16 Ohm, VDD=3V

RoHS: Yes