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LM4663

Features: Delta-sigma modulator. Two stereo input selector. Click and pop suppression circuitry. Micropower shutdown mode.24 lead TSSOP package (No heatsink required).Stereo headphone amplifier.ApplicationPortable computers Desktop computersMultimedia MonitorsPinoutSpecifications Power@ 4O...

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SeekIC No. : 004395735 Detail

LM4663: Features: Delta-sigma modulator. Two stereo input selector. Click and pop suppression circuitry. Micropower shutdown mode.24 lead TSSOP package (No heatsink required).Stereo headphone amplifier.A...

LM4663 Data Sheet

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Part Number:
LM4663
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:

Delta-sigma modulator.
Two stereo input selector.
"Click and pop" suppression circuitry.
Micropower shutdown mode.
24 lead TSSOP package (No heatsink required).
Stereo headphone amplifier.




Application

Portable computers
Desktop computers
Multimedia Monitors




Pinout

Connection Diagram




Specifications

Power@ 4Ohms, 1% THD 2.1 Watt
THD 0.2 %
PSRR 44 dB
Channels 2 Channels
THD Conditions Po=1W
PSRR Conditions 200mV, Vin=0
User Supply 5 Volt
Shut down Yes
Mono/Stereo Stereo
Shutdown Type High
Supply Range +4.5 - +5.5 V
Temperature Min -40 deg C
Temperature Max 85 deg C
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Description

The LM4663 is a fully integrated single supply, high efficiency Class D audio power amplifier solution. The LM4663 utilizes a continuous time delta-sigma modulation technique that lowers output noise and THD when compared to conventional pulse width modulators.

The LM4663 also features a stereo headphone amplifier that delivers 80mW into a 32 headset with less than 0.5% THD. The LM4663 has two stereo inputs that can be selected to drive either the headphone amplifier or the Class D amplifier. All amplifiers are protected with thermal shutdown.

In standby mode, the LM4663 draws an extremely low 2µA supply current. With a 4 load, the IC's efficiency for a 250mW power level is 69%, reaching 83% at a power level of 2W. The IC features click and pop reduction circuitry that minimizes audible popping during device turn-on and turn-off. The LM4663 is available in a 24-lead TSSOP package, ideal for portable and desktop computer applications.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4663MT CMOS7 0 16561 0 0 954000 4 270700104

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.







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