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EVAL-SSM2301 

 

 

Rev. 0 | Page 6 of 8 

 

GND

GND

OUT+

OUT–

a

GND

HD4

HD3

SD

GAIN

S1A S1B S1C

09

/2

7/

07

TB1

CLASS D

AMPLIFIER

J2

POWER

INPUT

VDD

PGND

AUDIO INPUT

J1

HD2

SSM2301 EVAL. BOARD

REV. 2.0

OUT+

OUT–

GND

GND

IN+

IN–

HD1

OFF

ON

S1

   U1

SSM2301

R6

R7

R1 R2

C1

C2

C7

C3

C4

R4

R3

C6

L2

L1

B1

C8C10

C13
C11

B3

B2

C9

C12

07

10

8-

0

01

Figure 8. SSM2301 Evaluation Board (Rev. 2.0) Layout 

07

10

8-

0

02

Figure 9. Bottom Layer of the Evaluation Board 

 

07

10

8-

00

3

Figure 10. Mirrored Bottom Layer of the Evaluation Board 

 

Summary of Contents for EVAL-SSM2301

Page 1: ... 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 of the maximum output power by 4 when compared to a half bridge under the same load impedance These benefits are particularly useful for low v...

Page 2: ...luation Board Description 1 Revision History 2 Evaluation Board Hardware 3 Switches 3 Getting Started 3 Layout Guidelines 4 Evaluation Board Schematic and Artwork 5 Ordering Information 7 Bill of Materials 7 Ordering Guide 7 ESD Caution 7 REVISION HISTORY 5 08 Revision 0 Initial Version ...

Page 3: ...ted in Figure 3 The lower side of the board has a switch bank with the follow ing functions S1A Upper position short circuits the input coupling capacitor for positive input port Lower position open circuits the input coupling capacitor for positive input port S1B The same functions as the S1A switch but for the coupling capacitor connected to the negative input port S1C Upper position short circu...

Page 4: ...solder their ground terminals together as shown in Figure 5 do not rely on PCB tracks or ground planes for connecting their ground terminals together 07108 007 C8 C12 C9 C10 C13 C11 INPUT TRACK OUTPUT TRACK SMALL INDUCTOR COPPER FILL Figure 5 Placement and Routing for Decoupling Capacitors 4 The 1 nF capacitor and the ferrite bead can block the EMI for up to 250 MHz To eliminate EMI higher than 25...

Page 5: ...21SN1 1 2 BLM18EG221SN1 L1 3 3µH NO_POP L2 3 3µH NO_POP 4 3 2 1 2 1 2 1 2 1 HD3 2 1 2 1 3 HD2 HD4 TB1 OUT OUT 1 1 GND GND 1 1 GND PGND 1 1 C8 1nF 2 1 C9 1nF 2 1 C10 100pF 2 1 C11 100pF 2 1 C12 10µF 2 1 C4 100pF 2 1 C3 100pF 2 1 C13 10µF B1 B2 1 2 BLM18EG221SN1 B3 VDD J2 PS_JACK 2 9 S1B 5PDT C2 220nF 1 2 1 10 S1A 5PDT C1 220nF 3 8 S1C 5PDT 3 2 1 HD1 IN IN GND GND 1 1 1 1 J1 AUDIO JACKET 2 3 1 2 1 R...

Page 6: ...O INPUT J1 HD2 SSM2301 EVAL BOARD REV 2 0 OUT OUT GND GND IN IN HD1 OFF ON S1 U1 SSM2301 R6 R7 R1 R2 C1 C2 C7 C3 C4 R4 R3 C6 L2 L1 B1 C8C10 C13 C11 B3 B2 C9 C12 07108 001 Figure 8 SSM2301 Evaluation Board Rev 2 0 Layout 07108 002 Figure 9 Bottom Layer of the Evaluation Board 07108 003 Figure 10 Mirrored Bottom Layer of the Evaluation Board ...

Page 7: ...0 μF 6 3 V X5R 0603 Digi Key PCC2395TR ND 2 L1 L2 Inductor 3 3 μH type D62LCB SMD Digi Key A918CY 3R3M 3 B1 B2 B3 Filter chip 220 Ω 2 A 0603 Digi Key 490 3992 2 ND 5 S1 S1A S1B S1C S1D S1E Switch DIP top slide 5 position SMD Digi Key CKN6074 ND 1 J1 Audio connectors 3 5 mm SMT Mouser 806 STX 3500 3N 1 J2 DC power connectors 2 mm SMT power jack Mouser 806 KLDX SMT20202A 1 U1 Filterless high efficie...

Page 8: ...EVAL SSM2301 Rev 0 Page 8 of 8 NOTES 2008 Analog Devices Inc All rights reserved Trademarks and registered trademarks are the property of their respective owners EB07108 0 5 08 0 ...

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