Description

The PAM8901 / PAM8908 stereo headphone driver is designed for

portable equipment where board space is at a premium. The

PAM8901 / PAM8908 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 / PAM8908 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 / PAM8908 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

Features

•  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

Pin Assignments

Applications

•  Smart Phones/Cellular Phones

•  Notebook Computers

•  Portable DVD Player

•  Personal Digital Assistants (PDAs )

•  Electronic Dictionaries

•  Digital Still Cameras

•  Portable Gaming