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PAM8901 Schematic ( PDF Datasheet ) - Diodes

Teilenummer PAM8901
Beschreibung 25mW TRUE CAP FREE STEREO HEADPHONE AMPLIFIER
Hersteller Diodes
Logo Diodes Logo 




Gesamt 12 Seiten
PAM8901 Datasheet, Funktion
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
16load 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 Dictionaries
Digital Still Cameras
Portable Gaming
Typical Applications Circuit
Typical Applcation Configuration with Differential Input Signals
PAM8901/
PAM8908
PAM8901 / PAM8908
Document number: DSxxxxx Rev. 1 - 1
1 of 12
www.diodes.com
December 2012
© Diodes Incorporated






PAM8901 Datasheet, Funktion
A Product Line of
Diodes Incorporated
PAM8901 / PAM8908
Typical Performance Characteristics (cont.) (@TA=+25°C, PVDD=3.6V, f =1kHz, Gain=6dB, unless otherwise specified.)
PAM8901 / PAM8908
Document number: DSxxxxx Rev. 1 - 1
6 of 12
www.diodes.com
December 2012
© Diodes Incorporated

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PAM8901 pdf, datenblatt
A Product Line of
Diodes Incorporated
PAM8901 / PAM8908
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2012, Diodes Incorporated
www.diodes.com
PAM8901 / PAM8908
Document number: DSxxxxx Rev. 1 - 1
12 of 12
www.diodes.com
December 2012
© Diodes Incorporated

12 Page





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