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| PAM8408 Datasheet, PDF (1/11 Pages) Diodes Incorporated – 2x3W STEREO DIFFERENTIAL INPUT CLASS D AUDIO AMPLIFIER WITH MEMORY UP/DOWN VOLUME | |||
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A PRODUCT LINE OF
DIODES INCORPORATED
PAM8408
2x3W STEREO DIFFERENTIAL INPUT CLASS D
AUDIO AMPLIFIER WITH MEMORY UP/DOWN VOLUME
Description
The PAM8408 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. The gain will held when the chip is in
shutdown mode.
The PAM8408 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 PAM8408 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 PAM8408 built in auto recovery SCP (short circuit protection) and
thermal shutdown.
The PAM8408 is available in SO-16L package.
Features
⢠3W Output at 10% THD with a 4⦠Load and 5V Supply
⢠2.4W Output at 1% THD with a 4⦠Load and 5V Supply
⢠2.5V to 6.0V VDD Operating
⢠Fully Differential Input
⢠Filter-less, Low Quiescent Current and Low EMI
⢠Low THD+N
⢠32-Step Memory Up/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-16L Package
Pin Assignments
SO-16L
RINP 1
RINN 2
SD 3
UP 4
DOWN 5
GND 6
LINN 7
LINP 8
Applications
⢠PC Speaker
⢠Wireless Speaker
⢠Home Sound Systems
⢠Active Speakers
⢠Docking Stations
16 VDD
15 ROUTP
14 ROUTN
13 GND
12 GND
11 LOUTN
10 LOUTP
9 VDD
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
PAM8408 GND 13
5 DOWN
GND 12
6 GND
7 LINN
8 LINP
LOUTN 11
LOUTP 10
VDD 9
VDD
C2
1uF
4â¦
4â¦
C2
1uF
VDD
PAM8408
Document number: DS36992 Rev. 1 - 2
1 of 11
www.diodes.com
June 2014
© Diodes Incorporated
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