PAM8908

Description

The PAM8908 stereo headphone driver is designed for portable equipment where board space is at a premium. The PAM8908 uses a unique, patent pending architecture to produce a ground-referenced output from a single supply, eliminating the need for large DCblocking capacitors, saving cost, board space, and component height.

The PAM8908 delivers up to 60mW per channel into a 32Ω 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 PAM8908 operates from a single supply from 2.5V to 5.5V and has short-circuit and overtemperature protections. 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
• True Cap Free Architecture, Output Biased at 0V (System Ground)
• Excellent Low Frequency Fidelity
• 80dB PSRR at 1kHz
• Less than 1µA Shutdown Current
• Support Both Fully Differential and Single-Ended Inputs
• Short-Circuit and Overtemperature Protections
• Selectable Gain Settings: -6dB, 0dB, 3dB and 6dB
• Available in Space-Saving Package: U-QFN3030-16 Standard
• Lead-Free and Green Devices Available (RoHS Compliant)
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

• Smart phones/cellular phones
• Notebook computers
• Portable DVD players
• Personal digital assistants (PDAs)
• Electronic dictionaries
• Digital still cameras
• Portable gaming