Diodes Incorporated — Analog and discrete power solutions
U QFN3030 16 Type B

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PAM8901 (NRND)

NRND = Not Recommended for New Design

25mW True CAP Free Stereo Headphone Driver

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Description

The PAM8901 stereo headphone driver is designed for portable equipment where board space is at a premium. The PAM8901 uses a unique, patent pending architecture to produce a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, saving cost, board space, and component height. The PAM8901 delivers up to 25mW per channel into a 16Ω load and has low 0.03% THD+N. A high power-supply rejection ratio (80dB at 1kHz) allows this device to operate from noisy digital supplies without an additional linear regulator. The PAM8901 operates from a single supply from 2.5V t o 5.5V, has short-circuit and over temperature protection. Shutdown mode reduces supply current to less than 1μA.

Feature(s)

  • Patent Pending 3 phase power line shift
  • charge pump Eliminates Need for DC-Blocking Capacitors
  • TrueCapFree Architecture, Output Biased at 0V (System Ground)
  • Excellent Low Frequency Fidelity
  • 80dB PSRR at 1kHz
  • Less than 1uA Shutdown current
  • Support both Fully differential and Single-Ended Inputs
  • Short Circuit and Over Temperature Protection
  • Selectable Gain settings:-6dB,0dB,3dB and 6dB
  • Available in Space Saving Packages: TQFN3x3-16L

Application(s)

  • Smart Phones/Cellular Phones
  • Notebook Computers
  • Portable DVD Player
  • Personal Digital Assistants (PDAs )
  • Electronic Dictionaries
  • Digital Still Cameras
  • Portable Gaming

Product Specifications

Product Parameters

Anti-Sat No
Compliance (Only Automotive supports PPAP) No
BTL No
Class-D or AB D
Efficiency (%) N/A
Gain Max 6
Gain Min -6
Headphone Out Yes
IQ (mA) 4
Maximum VDD (V) 5.5
Minimum VDD 2.5
Minimum VDD (V) 2.5
Mono or Stereo Stereo
Power Limit No
Power/CH (W) @ THD=1% 0.035
Power/CH (W) @ THD=10% N/A
PSRR 75
AEC Qualified No
SE Yes
SNR 100
Special Features N/A
Volume/ Gain 4-Settings

Related Content

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Technical Documents

Recommended Soldering Techniques

TN1.pdf