PAM8908

A Product Line of Diodes Incorporated PAM8901 / PAM8908 25mW TRUE CAP FREE STEREO HEADPHONE AMPLIFIER 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. Pin Assignments 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 Applications Smart Phones/Cellular Phones Notebook Computers Portable DVD Player Personal Digital Assistants (PDAs ) Electronic ...