EVAL-SSM3525Z
User Guide
UG-1183
One
Technology Way
•
P.O. Box 9106
•
Norwood, MA 02062-9106, U.S.A.
•
Tel: 781.329.4700
•
Fax: 781.461.3113
•
www.analog.com
Evaluating the
SSM3525
30 W
,
Filterless
,
Class-D
,
Output Sensing Audio Amplifier
Rev. 0 | Page 1 of 16
FEATURES
15.3 W into 4 Ω at 12 V with a 1% THD + N
EVALUATION KIT CONTENTS
USBi USB interface board
USB cable
EVAL-SSM3525Z evaluation board
DOCUMENTS NEEDED
SSM3525
data sheet
EVAL-SSM3525Z user guide
DLL for
SigmaStudio
GENERAL DESCRIPTION
The EVAL-SSM3525Z is an evaluation board for the
SSM3525
,
which is an integrated mono 30 W, high efficiency, stereo Class-D
audio amplifier with digital input. The application circuit requires a
few external components and can operate from a single 4.5 V to
17 V supply. It is capable of delivering 15.3 W of continuous output
power into a 4 Ω load from a 12 V power supply, with <1% total
harmonic distortion plus noise (THD + N).
The
SSM3525
features a high efficiency, low noise modulation
scheme that requires no external inductor/capacitor (LC) output
filters. This scheme continues to provide high efficiency even at
low output power.
The
SSM3525
operates with 92.1% efficiency at 9 W into an 8 Ω
load, and it has a typical output noise voltage of 37.5 µV rms,
A weighted.
This user guide describes how to configure and use the EVAL-
SSM3525Z evaluation board. Read this user guide in conjunction
with the
SSM3525
data sheet, which provides specifications,
internal block diagrams, register map, and application guidance
for the amplifier IC.
Figure 1 shows the top view of the evaluation board, and Figure 2
shows the bottom view of the evaluation board.
EVALUATION BOARD PHOTOGRAPHS
16199-
001
Figure 1.
SSM3525
Evaluation Board Top View
16199-
002
Figure 2.
SSM3525
Evaluation Board Bottom View
