PAM8407 Datasheet, PDF (1/12 Pages) Diodes Incorporated – 2x3W Stereo Differential Input Class D Audio Amplifier with Up/Down Volume Control

A PRODUCT LINE OF
DIODES INCORPORATED
2x3W Stereo Differential Input Class D Audio Amplifier
with Up/Down Volume Control
Description
The PAM8407 is a filter-less Class-D amplifier with high SNR and
differential input that helps eliminate noise. Advanced 32-step
Up/Down volume control minimizes external components and allows
speaker volume control.
Pin Assignments
SO-16
PAM8407
The PAM8407 supports 2.5V to 6V operation make it idea for up to 4
cells alkaline battery applications.
Features like greater than 87% efficiency and small PCB area make
the PAM8407 Class-D amplifier ideal for portable applications. The
output uses a filter-less architecture minimizing the number of
external components and PCB area whilst providing a high
performance, simple and lower cost system.
The PAM8407 built in auto recovery SCP (short circuit protection) and
thermal shutdown.
RINP ¹
RINN ²
SD ³
UP 4
DOWN ⁵
GND 6
LINN ₇
LINP ₈
16 VDD
15 _ROUTP
14 ROUTN
13 GND
12 GND
11 LOUTN
10 LOUTP
9 VDD
The PAM8407 is available in SO-16 package.
Features
 3W Output at 10% THD with a 4Ω load and 5V Supply
 2.4W Output at 1% THD with a 4Ω Load and 5V Supply
 2.5V to 6.0V VDD Operating
 Fully Differential Input
 Filterless, Low Quiescent Current and Low EMI
 Low THD+N
 32-stepUp/Down Volume Control from -80dB to 24dB
 Superior Low Noise: 60uV
 Minimize Pop/Clip Noise
 Auto Recovery Short Circuit Protection
 Thermal Shutdown
 Pb-Free SO-16 Package
Applications
 PC Speaker
 Wireless Speaker
 Home Sound Systems
 Active Speakers
 Docking stations
Typical Applications Circuit
RINP
RINN
C5
0. 1uF
C6
0. 1uF
ON
SHDN
LINN
LINP
C7
0. 1uF
C8
0. 1uF
1 RINP
VDD 16
2 RINN
ROUTP 15
3 SD
ROUTN 14
4 UP
PAM8407 GND 13
5 DOWN
GND 12
6 GND
7 LINN
8 LINP
LOUTN 11
LOUTP 10
VDD 9
V _DD
C2
1uF
4Ω
4Ω
C2
1uF
V _DD
PAM8407
Document number: DS36815 Rev. 1 - 2
1 of 12
www.diodes.com
January 2014
© Diodes Incorporated