SSM2306-MINI-EVALZ Analog Devices Inc, SSM2306-MINI-EVALZ Datasheet

BOARD EVAL FOR SSM2306-MINI

SSM2306-MINI-EVALZ

Manufacturer Part Number
SSM2306-MINI-EVALZ
Description
BOARD EVAL FOR SSM2306-MINI
Manufacturer
Analog Devices Inc

Specifications of SSM2306-MINI-EVALZ

Design Resources
Analog Audio Input, Class-D Output with ADAU1701, SSM2306, and ADP3336 (CN0162)
Amplifier Type
Class D
Output Type
2-Channel (Stereo)
Max Output Power X Channels @ Load
2.4W x 2 @ 4 Ohm
Voltage - Supply
2.5 V ~ 5 V
Operating Temperature
-40°C ~ 85°C
Board Type
Fully Populated
Utilized Ic / Part
SSM2306
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
DC power supply accepts 2.5 V to 5.5 V
Single-ended and differential input capability
Extremely small board size allows integration (0.34 in × 0.34 in)
GENERAL DESCRIPTION
The SSM2306 is a single-chip, dual-channel, Class-D stereo
audio amplifier. It is a fully integrated chip, which means that the
application circuit requires a minimum of external components.
It comes with a differential mode input port and a high efficiency
H-bridge at the output. When compared to a half-bridge output
stage, a full H-bridge enables direct coupling of the audio power
signal to the loudspeaker, doubling the output voltage swing and
eliminating the need for a large output coupling capacitor. Another
benefit of a full H-bridge is an increase in the maximum output
power by 4× when compared to a half bridge under the same
load impedance. These benefits are particularly useful for low
voltage, battery-powered, portable electronics where energy and
space are limited. The differential mode input stage allows for
canceling of common-mode noise leading to a superior CMRR.
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purpos
Evaluation boards are supplied “as is” and without warranties of any kind, express, implied,
statutory including, but not limited to, any implied warranty of merchantability or fitness fo
particular purpose. No license is granted by implication or otherwise under any patents or ot
intellectual property by application or use of evaluation boards. Information furnished by Anal
Devices is believed to be accurate and reliable. However, no responsibility is assumed by Anal
Devices for its use, nor for any infringements of patents or other rights of third parties that m
result from its use. Analog Devices reserves the right to change devices or specifications at a
time without notice. Trademarks and registered trademarks are the property of their respect
owners. Evaluation boards are not authorized to be used in life support devices or systems.
Figure 1. SSM2306 Mini Evaluation Board, Top View
Evaluation Board for 2W, Filterless,
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Class-D Stereo Audio Amplifier
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Moreover, the part features a high efficiency, low noise output
modulation scheme that does not require external LC output
filters when attached to an inductive load. The modulation
provides high efficiency even at low output power. Filterless
operation also helps to decrease distortion due to nonlinearities
of output LC filters, thereby delivering better sound quality
and leading to savings in board space and overall cost.
This data sheet describes how to configure and use the
SSM2306 mini evaluation board. It is recommended that this
data sheet be read in conjunction with the
sheet, which provides more detailed information about the
specifications, internal block diagrams, and application
guidance for the amplifier IC.
EVALUATION BOARD DESCRIPTION
The SSM2306 mini evaluation board carries a complete appli-
cation circuit for driving a stereo loudspeaker. Figure 1 shows
the top view of the PCB, and Figure 2 shows the bottom view
of the PCB. The top silkscreen layer of the evaluation board is
shown in Figure 4 with other top layers, including top copper,
top solder mask, and multilayer vias. The bottom silkscreen
layer of the evaluation board is shown in Figure 5 with other
bottom layers, including bottom copper, bottom solder mask,
and multilayer vias.
Figure 2. SSM2306 Mini Evaluation Board, Bottom View
EVAL-SSM2306-MINI
©2008 Analog Devices, Inc. All rights reserved
SSM2306
www.analog.com
data
.

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SSM2306-MINI-EVALZ Summary of contents

Page 1

... IC. EVALUATION BOARD DESCRIPTION The SSM2306 mini evaluation board carries a complete appli- cation circuit for driving a stereo loudspeaker. Figure 1 shows the top view of the PCB, and Figure 2 shows the bottom view of the PCB. The top silkscreen layer of the evaluation board is shown in Figure 4 with other top layers, including top copper, top solder mask, and multilayer vias ...

Page 2

... EVAL-SSM2306-MINI TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Evaluation Board Description ......................................................... 1 Revision History ............................................................................... 2 Evaluation Board Hardware ............................................................ 3 Getting Started .............................................................................. 3 What to Test .................................................................................. 3 REVISION HISTORY 7/08—Revision 0: Initial Version   Component Selection ...................................................................3   PCB Layout Guidelines .................................................................4   Evaluation Board Schematic and Artwork .....................................5   Ordering Information .......................................................................7   ...

Page 3

... V supply. The SSM2306 mini evaluation board accepts differential or single-ended input signals. On the left side of the SSM2306 mini evaluation board are five solder pads for the input audio signal: INR+ and INR− for the right channel, INL+ and INL− for the left channel, and GND (see Figure 4). The evaluation board uses INx+ and INx− ...

Page 4

... Keep the PCB traces of high EMI nodes on the same side of the PCB and as short as possible. The high EMI nodes on the SSM2306 are Pin 1, Pin 2, Pin 11, and Pin 12. The SSM2306 mini evaluation board works well only if these techniques are implemented in the PCB design to keep EMI and amplifier temperature low ...

Page 5

... GND BEAD BEAD PAD 16 GND U1 15 VDD SSM2306 14 VDD 13 GND BEAD BEAD LP2 Figure 3. Schematic of the SSM2306 Mini Evaluation Board Rev Page EVAL-SSM2306-MINI 1 OUTBL– 1 OUTBL 1nF 1nF 1 GND C7 C8 1nF 1nF 1 OUTBR+ 1 OUTBR– VDD VDD BEAD C9 C10 10µF 10µ ...

Page 6

... EVAL-SSM2306-MINI VDD PGND INL+ INL– U1 SSM2306 INR– INR+ GND LP1 LP2 Figure 4. Top Layers of the Evaluation Board OUTBL– OUTBL+ OUTBR+ OUTBR– GND Rev Page C10 Figure 5. Bottom Layers of the Evaluation Board ...

Page 7

... ORDERING INFORMATION ORDERING GUIDE Model Description 1 SSM2306-MINI-EVALZ Evaluation Board without DIP switch RoHS Compliant Part. ESD CAUTION Rev Page EVAL-SSM2306-MINI ...

Page 8

... EVAL-SSM2306-MINI NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB07577-0-7/08(0) Rev Page ...

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