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LM4875

Features: Precision DC voltage volume control Headphone amplifier mode Click and pop suppressionShutdown control when volume control pin is lowThermal shutdown protectionApplication GSM phones and accessories, DECT, office phones Hand held radioOther portable audio devicesPinoutSpecifications ...

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SeekIC No. : 004395834 Detail

LM4875: Features: Precision DC voltage volume control Headphone amplifier mode Click and pop suppressionShutdown control when volume control pin is lowThermal shutdown protectionApplication GSM phones an...

LM4875 Data Sheet

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Part Number:
LM4875
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Precision DC voltage volume control
Headphone amplifier mode
"Click and pop" suppression
Shutdown control when volume control pin is low
Thermal shutdown protection




Application

GSM phones and accessories, DECT, office phones
Hand held radio
Other portable audio devices




Pinout

Connection Diagram




Specifications

Supply Voltage

6.0V

Storage Temperature
-65°C to +150°C
Input Voltage
-0.3V to VDD +0.3V
Power Dissipation (Note 11)
Internally limited
Solder Information (Note 1)Vapor Phase (60 sec.)
Infrared (15 sec.)
215°C
220°C
ESD Susceptibility (Note 13)
200V
Junction Temperature
150°C
Thermal Resistanc
JC (SOP)
JA (SOP)
JC (MSOP)
JA (MSOP)
35°C/W
150°C/W
56°C/W
190°C/W





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 8Ω 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.






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