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LM4845

Features: I2C/SPI Control InterfaceI2C/SPI programmable National 3D AudioI2C/SPI controlled 32 step digital volume control (-54dB to +18dB)Three independent volume channels (Left, Right, Mono) Eight distinct output modesmicroSMD surface mount packaging Click and Pop suppression circuitry Thermal ...

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SeekIC No. : 004395799 Detail

LM4845: Features: I2C/SPI Control InterfaceI2C/SPI programmable National 3D AudioI2C/SPI controlled 32 step digital volume control (-54dB to +18dB)Three independent volume channels (Left, Right, Mono) Eight...

LM4845 Data Sheet

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Part Number:
LM4845
Supply Ability:
5000

Price Break

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

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Upload time: 2024/6/3

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Product Details

Description



Features:

I2C/SPI Control Interface
I2C/SPI programmable National 3D Audio
I2C/SPI controlled 32 step digital volume control (-54dB to +18dB)
Three independent volume channels (Left, Right, Mono)
Eight distinct output modes
microSMD surface mount packaging
"Click and Pop" suppression circuitry
Thermal shutdown protection
Low shutdown current (0.1uA, typ)


Application

 Moblie Phones
 PDAs


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 Resistance
JA (typ) - TLA25CBA
65°C/W (Note 8)



Description

The LM4845 is an audio power amplifier capable of delivering 500mW of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 25mW per channel of continuous average power into stereo 32Ω single-ended (SE) loads with 1% THD+N, or an output capacitor-less (OCL) configuration with identical specification as the SE configuration, from a 3.3V power supply.

The LM4845 features a 32-step digital volume control and eight distinct output modes. The digital volume control, 3D enhancement, and output modes (mono/SE/OCL) are programmed through a two-wire I2C or a three-wire SPI compatible interface that allows flexibility in routing and mixing audio channels. The LM4845 has three input channels: one pair for a two-channel stereo signal and the third for a single-channel mono input.




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