SSM2315-EVALZ Analog Devices Inc, SSM2315-EVALZ Datasheet

BOARD EVAL SSM2315

SSM2315-EVALZ

Manufacturer Part Number
SSM2315-EVALZ
Description
BOARD EVAL SSM2315
Manufacturer
Analog Devices Inc
Datasheets

Specifications of SSM2315-EVALZ

Amplifier Type
Class D
Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
4.28W x 1 @ 3 Ohm
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Board Type
Fully Populated
Utilized Ic / Part
SSM2315
Silicon Manufacturer
Analog Devices
Application Sub Type
Audio Power Amplifier - Class D
Kit Application Type
Amplifier
Silicon Core Number
SSM2315
Kit Contents
Board
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
Single-ended and differential input capability
Multiple input interface connection options (jack or header)
Optimized EMI suppression filter assembled on board
PCB footprint for dc power supply jack (accepts 2.5 V to 5.5 V)
GENERAL DESCRIPTION
The SSM2315 is a fully integrated, single-chip, mono Class-D
audio amplifier. It is designed to maximize performance for
mobile phone applications. The application circuit requires a
minimum of external components and operates from a single
2.5 V to 5.5 V supply. It is capable of delivering 3 W of contin-
uous output power with less than 1% THD + N driving a 3 Ω
load from a single 5.0 V supply.
The SSM2315 comes with a differential mode input port and a
high efficiency, full H-bridge at the output that enables direct
coupling of the audio power signal to the loudspeaker. The
differential mode input stage allows for canceling of common-
mode noise.
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. Information furnished by Analog
Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may
result from its use. Analog Devices reserves the right to change devices or specifications at any
time without notice. Trademarks and registered trademarks are the property of their respective
owners. Evaluation boards are not authorized to be used in life support devices or systems.
Figure 1. SSM2315 Evaluation Board Top View
Filterless Class-D Audio Amplifier
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The part also features a high efficiency, low noise output
modulation scheme that requires no 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 the nonline-arities of
output LC filters.
This data sheet describes how to configure and use the SSM2315
evaluation board to test the SSM2315. 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 SSM2315 evaluation board carries a complete application
circuit for driving a loudspeaker. Figure 1 shows the top view
of the evaluation board, and Figure 2 shows the bottom view.
Figure 2. SSM2315 Evaluation Board Bottom View
Evaluation Board for
©2009 Analog Devices, Inc. All rights reserved
EVAL-SSM2315
SSM2315
www.analog.com
data
.

Related parts for SSM2315-EVALZ

SSM2315-EVALZ Summary of contents

Page 1

... THD + N driving a 3 Ω load from a single 5.0 V supply. The SSM2315 comes with a differential mode input port and a high efficiency, full H-bridge at the output that enables direct coupling of the audio power signal to the loudspeaker. The differential mode input stage allows for canceling of common- mode noise ...

Page 2

... EVAL-SSM2315 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Evaluation Board Description ......................................................... 1 Revision History ............................................................................... 2 Evaluation Board Hardware ............................................................ 3 Input Configuration ..................................................................... 3 Output Configuration .................................................................. 3 Power Supply Configuration ....................................................... 3 Component Selection................................................................... 3 REVISION HISTORY 5/09—Revision 0: Initial Version   PCB Layout Guidelines .................................................................4   Getting Started ...............................................................................5   What to Test ...................................................................................5   Evaluation Board Schematic and Artwork .....................................6   ...

Page 3

... The SSM2315 does not require any external LC output filters because it has a low noise modulation scheme. However, if the speaker length is >10 cm recommended that a ferrite bead (L1 and L2) be placed near each output pin of the SSM2315 to reduce electromagnetic interference (EMI), as shown in the schematic in Figure 4. ...

Page 4

... GO TO GND PLANE BY VIA GO TO VDD PLANE BY VIA Figure 3. Preferred PCB Layout for the SSM2315 Evaluation Board Layer Stacks and Grounding The stack-up for the evaluation board is a 4-layer structure. • Top layer—component layer with power and output copper land and ground copper pouring. • ...

Page 5

... Component Placement and Clearance Place all related components except decoupling capacitors on the same side as the SSM2315 and as close as possible to the chip to avoid vias (see Figure 5). Place decoupling capacitors on the bottom side and close to the GND pin (see Figure 7). Top Layer Copper Land and Ground Pouring The output peak current of this amplifier is more than 1 A ...

Page 6

... IN+ OUT– C1 100pF B0603 IN– OUT+ U1 SSM2315 C2 2C 100pF SD JP2 HDR1X2 NOTES 1. L3, L4, C7, C8, C9, C10, AND J1 ARE NOT POPULATED. Figure 4. Schematic of the SSM2315 Evaluation Board Rev Page 15µH G1 GAP OUT– 1nF 100pF 1nF JP1 G2 HDR1X2 GAP OUT C10 ...

Page 7

... Figure 5. Top Layer with Top Silkscreen Figure 6. Top Silkscreen Figure 7. Bottom Silkscreen Figure 8. Top Layer Rev Page EVAL-SSM2315 ...

Page 8

... EVAL-SSM2315 Figure 9. Layer 2 (Ground Plane) Figure 10. Layer 3 (Power Plane) Figure 11. Bottom Layer Rev Page ...

Page 9

... R1 100 kΩ resistor Ω resistor, 1/ SSM2315 ORDERING GUIDE Model Description 1 SSM2315-EVALZ Evaluation Board RoHS Compliant Part. ESD CAUTION Rev Page EVAL-SSM2315 Supplier/Part No. AVX, 06035A101KAT2A Kemet, C0603C102J5GACTU Murata, GRM31MF51A106ZA01L Kemet, C0603C104K4RACTU CUI, PJ1-021 CUI, SJ1-3523N Tyco, 4-103747-0-02 ...

Page 10

... EVAL-SSM2315 NOTES Rev Page ...

Page 11

... NOTES Rev Page EVAL-SSM2315 ...

Page 12

... EVAL-SSM2315 NOTES ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB07818-0-5/09(0) Rev Page ...

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