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EVAL-SSM2306 

 

 

Rev. 0 | Page 2 of 8 

TABLE OF CONTENTS 

Features .............................................................................................. 1

 

General Description ......................................................................... 1

 

Evaluation Board Description ......................................................... 1

 

Revision History ............................................................................... 2

 

Evaluation Board Hardware ............................................................ 3

 

Switches ..........................................................................................  3

 

Getting Started .............................................................................. 3

 

What to Test .................................................................................. 3

 

Component Selection ...................................................................4

 

PCB Layout Guidelines .................................................................4

 

Evaluation Board Schematic and Artwork .....................................6

 

Ordering Information .......................................................................8

 

Bill of Materials ..............................................................................8

 

Ordering Guide .............................................................................8

 

ESD Caution...................................................................................8

 

 

REVISION HISTORY 

8/08—Revision 0: Initial Version 

 

Summary of Contents for EVAL-SSM2306

Page 1: ...wing 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 com...

Page 2: ...tion 1 Revision History 2 Evaluation Board Hardware 3 Switches 3 Getting Started 3 What to Test 3 Component Selection 4 PCB Layout Guidelines 4 Evaluation Board Schematic and Artwork 6 Ordering Information 8 Bill of Materials 8 Ordering Guide 8 ESD Caution 8 REVISION HISTORY 8 08 Revision 0 Initial Version ...

Page 3: ...tion the coupling capacitors are inserted in the signal paths The S1E and S1F switches are used to ac short circuit the left and right channel negative input ports to ground respectively This function is generally recommended but is only necessary when driving the input ports in single ended mode After shorting the negative input ports to ground the noise picked up by the input port connections is...

Page 4: ...f these capacitors the lower the residual EMI level at the output and the higher the quiescent current at the power supply The recommended values for Capacitors C11 to C14 are 500 pF to 1 nF the recommended values for Capacitors C23 to C26 are 100 pF to 200 pF Output Inductors Some users do not allow high frequency EMI in the system and prefer using inductors to filter out high frequency component...

Page 5: ...small capacitors should be connected to the ground terminals of the 1 nF decoupling capacitors or to the PCB traces which are placed as close to the output loads the loudspeakers as possible In this way the PCB connecting trace between these two capacitors serves as an inductor for filtering out the high frequency component as shown in Figure 4 8 Decouple the input port nodes and the digital pins ...

Page 6: ...221SN1D 1 2 B1 BLM18EG221SN1D 1 2 B4 BLM18EG221SN1D 1 2 B3 BLM18EG221SN1D 1 2 C11 1nF 1 2 C12 1nF 1 2 C14 1nF 1 2 C13 1nF 1 2 C15 1uF 1 2 C16 1uF 1 2 C17 1uF 1 2 C18 1uF 1 2 3 3HD1 3P_HEADER 1 2 3 3HD2 3P_HEADER 1 2 C19 10uF 1 2 B5 BLM18EG221SN1D 1 2 C20 10uF 2 1 4 3 6 5 8 7 10 9 TB1 10P_T_BLOCK 1 2 2HD1 2PINA 1 2 2HD2 2PINA 1 2 2HD3 2PINA 1 2 2HD4 2PINA 7 8 S1H 7PST 1 2 R7 100K VDD VDD 1 22HD5 2P...

Page 7: ...lkscreen Layer with Other Top Layers 06856 008 Figure 8 Top Silkscreen 06856 010 Figure 10 Bottom Layers of the Evaluation Board 06856 011 Figure 11 Mirrored Bottom Layers of the Evaluation Board 06856 009 Figure 9 Top Layers Without the Top Silkscreen Layer ...

Page 8: ...2395TR ND 4 L1 to L4 Inductor 4 7 μH 650 mA 1210 Digi Key 490 4057 2 ND 5 B1 to B5 Filter chip 220 Ω 2 A 0603 Digi Key 490 3992 2 ND 1 S1 S1A S1B S1C S1D S1E S1F S1G S1H Switch DIP top slide 8 position SMD Digi Key CKN6092 ND 1 J1 Audio connector 3 5 mm SMT stereo Mouser 806 STX 3500 3N 1 J2 DC power connector 2 mm SMT power jack Mouser 806 KLDX SMT20202A 1 U1 2 W filterless Class D stereo audio a...

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