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LM4917SDX
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LM4917SDX

  • Category:Audio amplifier
  • Product Name:95mW stereo headphone amplifier
  • Manufacturers:NSC
  • Production Batch Number:08+
  • Encapsulation:TSSOP-14
  • Stock Status:There is stock
  • Stock Quantity:6580
  • Minimum order quantity: 1
  • Details:Click here to find pdf information on the LM4917SDX
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  • Product introduction
peculiarity
  • Ground reference output
  • High PSRR
  • Space-saving TSSOP package
  • Ultra-low current shutdown mode
  • Improved pop-up click circuit eliminates turn-on noise and turn-off transitions
  • 1.4 - 3.6V operation
  • No output coupling capacitors, buffer networks, bootstrap capacitors
  • Turn off independence for either channel

illustrate

The LM4917 is a stereo output capacitor headphone amplifier capable of delivering 95mW of continuous average power into a 16Ω load with less than 1% THD+N from a single 3V supply.

The LM4917 provides high-quality audio reproduction with minimal external components. A ground-referenced output eliminates the output coupling capacitance typically required by single-ended loads, reducing component count, cost, and board space consumption. This makes the premium for board space for mobile phones and other portable devices ideal for the LM4917. Since the output coupling capacitor is eliminated, the low-frequency response is also improved.

The LM4917 operates from a single 1.4V to 3.6V supply and features 0.02% THD+N and 70dB PSRR low. Independent left/right channels with low-power shutdown control provide power-saving flexibility for mono/stereo applications. Advanced click suppression eliminates transient noise heard during startup and shutdown. Short circuit and thermal overload protection protects the device under fault conditions.

Main specifications

Improved PSRR at 1kHz 70 dB (typical)
In VDD= 3V output power, RL = 16Ω, total harmonic distortion ≦1% 95mW (typical)
Shutdown current 0.01μA (typical)


apply

  • laptop
  • Desktop computers
  • mobile phone
  • Pocket PC
  • Portable electronic devices

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Model Manufacturers lot number encapsulation illustrate
LM4917SDX NSC 08+ TSSOP-14 95mW stereo headphone amplifier

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