PAM8901 / PAM8908 25mW TRUE CAP FREE STEREO HEADPHONE AMPLIFIER Description Pin Assignments The PAM8901 / PAM8908 stereo headphone driver is designed for (Top View) Top View 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 14 13 16 15 the need for large DC-blocking capacitors, saving cost, board space, and component height. 1 12 INL- PVDD 2 11 INL+ CAP+ The PAM8901 / PAM8908 delivers up to 25mW per channel into a 16 load and has low 0.03% THD+N. A high power-supply rejection INR+ 3 10 CAP- ratio (80dB at 1kHz) allows this device to operate from noisy digital INR- 4 9 PGND supplies without an additional linear regulator. 5 6 7 8 The PAM8901 / PAM8908 operates from a single supply from 2.5V to 5.5V, has short-circuit and over temperature protection. Shutdown U-QFN3030-16 mode reduces supply current to less than 1A. U-QFN3030-16 (Type US) (TTop opV Viieeww) Features Patent Pending 3 Phase Power Line Shift Charge Pump 16 15 14 13 Eliminates Need for DC-Blocking Capacitors TrueCapFree Architecture, Output Biased at 0V (System INL- 1 12 HPVDD Ground) INL+ 2 11 CAP+ Excellent Low Frequency Fidelity 3 10 INR+ PGND 80dB PSRR at 1kHz Less than 1A Shutdown Current INR- 4 9 CAP- Support Both Fully Differential and Single-Ended Inputs 5 6 7 8 Short Circuit and Over Temperature Protection Selectable Gain Settings: -6dB, 0dB, 3dB and 6dB Available in Space Saving Packages: U-QFN3030-16 (Type US) U-QFN3030-16 U-QFN3030-16 (Type US) 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) Applications Smart Phones/Cellular Phones Notebook Computers Portable DVD Player Personal Digital Assistants (PDAs) Electronic Dictionaries Digital Still Cameras Portable Gaming Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See PAM8901 / PAM8908 Typical Applications Circuit Typical Application Configuration with Differential Input Signals PAM8901/ PAM8908 Typical Application Configuration with Single-Ended Input Signal PAM8901/ PAM8908 2 of 13 PAM8901 / PAM8908 October 2016 Diodes Incorporated www.diodes.com Document number: DS36456 Rev. 2 - 2 NEW PRODUCT