Datasheet LM4875M - National Semiconductor AMP, AUDIO, 1 W BOOMER, 4875, SO-8-8 — 数据表

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Manufacturer: National Semiconductor

Description: AMP, AUDIO, 1 W BOOMER, 4875, SO-8-8

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LM4875 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch
January 2002
LM4875 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch
General Description
The LM4875 is a mono bridged audio power amplifier with DC voltage volume control.

The LM4875 is capable of delivering 750mW of continuous average power into an 8 load with less than 1% THD when powered by a 5V power supply. Switching between bridged speaker mode and headphone (single ended) mode is accomplished using the headphone sense pin. To conserve power in portable applications, the LM4875's micropower shutdown mode (IQ = 0.7µA, typ) is activated when less than 300mV is applied to the DC Vol/SD pin. Boomer audio power amplifiers are designed specifically to provide high power audio output while maintaining high fidelity. They require few external components and operate on low supply voltages.

Specifications:

• Amplifier Case Style: SOIC
• Amplifier Type: Power
• Bandwidth: 20 kHz
• Base Number: 4875
• IC Generic Number: 4875
• Input Offset Voltage Max: 50mV
• Load Impedance Min: 8 Ohm
• Load Impedance: 8 Ohm
• Logic Function Number: 4875
• Mounting Type: SMD
• Number of Amplifiers: 1
• Number of Channels: 1
• Number of Pins: 8
• Operating Temperature Range: -40°C to +85°C
• Output Power Pout: 750 mW @ 8 Ohm
• Output Power: 1 W
• Package / Case: SO
• Power Rating RMS: 750 mW
• SVHC: No SVHC (15-Dec-2010)
• Supply Voltage + Nom: 5.5 V
• Supply Voltage Range: 2.7 V to 5.5 V
• THD + N: 0.6% @ 300 mW, 8 Ohm, VDD=5V

RoHS: Yes