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EVM Design Documents

16

SLAU751 – November 2017

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Copyright © 2017, Texas Instruments Incorporated

TPA3251 Evaluation Module

4.2

TPA3251EVM Board Layouts

shows the EVM board dimensions.

Figure 27. TPA3251EVM Board Dimensions

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Summary of Contents for TPA3251

Page 1: ...rcuit board PCB description schematic diagram and bill of materials are also included Figure 1 TPA3251 Evaluation Module Contents 1 Quick Start BTL Mode 3 2 Setup By Mode 5 3 Hardware Configuration 10...

Page 2: ...ency Response 13 25 TPA3251 EVM Top Composite Assembly 14 26 TPA3251 EVM Bottom Composite Assembly 15 27 TPA3251EVM Board Dimensions 16 28 TPA3251EVM Schematic 1 17 29 TPA3251EVM Schematic 2 18 30 TPA...

Page 3: ...d current to 10 A 5 A to 14 A range 3 Connect the power supply to the TPA3251EVM positive terminal to PVDD J1 RED and negative terminal to GND J1 BLACK 4 Connect the positive side of the left channel...

Page 4: ...Set S1 to the NORMAL position 12 The CLIP_OTW ORANGE and FAULT RED LEDs must be off if the audio source is off Table 1 lists the jumper configurations in BTL mode Table 1 Jumper Configurations BTL Mod...

Page 5: ...251EVM as described in Section 1 2 The remaining three configurations are 2 1 BTL plus two SE outputs 0 1 PBTL output and 4 0 SE outputs Table 2 Mode Selection Pins Mode Pins Input Mode Output Configu...

Page 6: ...l 5 Connect the positive terminal to OUTA J9 RED and the negative terminal to OUTB J9 BLACK 6 Set the J19 jumper position to DIFF 7 Input configuration a SE inputs Connect the RCA male jack to the fem...

Page 7: ...ive RCA male jack to the female RCA jack input B J14 BLACK Set the J4 jumper position to DIFF and set J26 J27 J34 and J35 to RCA c AIB input Set J26 J27 J34 and J35 to AIB 1 INA and INB are the inputs...

Page 8: ...t THD N vs Power Figure 14 RCA Input THD N vs Frequency Figure 15 RCA Input THD N vs Power 2 4 SE Mode Four Speaker Output 1 Set J6 to H and J5 to H 2 Remove jumpers J22 J23 J24 and J25 3 Connect the...

Page 9: ...T OUTA CAP SHUNT J23 OUT OUTB CAP SHUNT J24 OUT OUTC CAP SHUNT J25 OUT OUTD CAP SHUNT J5 1 to 2 M1 H J6 1 to 2 M2 H J7 OUT PBTL SELECT INC J8 OUT PBTL SELECT IND J4 2 to 3 INA B DIFF INPUT J19 2 to 3...

Page 10: ...Input THD N vs Power Figure 20 RCA Input THD N vs Frequency Figure 21 RCA Input THD N vs Power 3 Hardware Configuration 3 1 Indicator Overview OTW_CLIP and FAULT The TPA3251EVM is equipped with LED in...

Page 11: ...ave device depending on the polarity of the OSC_I O connection such that slave mode 1 is selected by connecting OSC_I O of the master device in phase with OSC_I O of the slave device to and to while s...

Page 12: ...EVM use O 4 GND Ground reference between audio plug in module and audio class D EVM 5 NC 6 NC 7 3 3 V 3 3 V supply from EVM used for powering audio plug in module O 8 3 3 V 3 3 V supply from EVM used...

Page 13: ...5 V and 3 3 V supplies so that the user can verify that the EVM is powered see Figure 22 Figure 22 EVM Power Tree 3 7 LC Filter Overview Included near the output of the TPA3251 device are four output...

Page 14: ...nsure that the TPA3251 can be placed in reset easily as needed or automatically if there is a power supply issue 3 10 Op Amp versus Direct Drive The op amps are used to change a single ended input int...

Page 15: ...ti com EVM Design Documents 15 SLAU751 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPA3251 Evaluation Module Figure 26 TPA3251 EVM Bottom Composite Assem...

Page 16: ...6 SLAU751 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPA3251 Evaluation Module 4 2 TPA3251EVM Board Layouts Figure 27 shows the EVM board dimensions Figu...

Page 17: ...PKA OUT SPKB OUT SPKC OUT SPKD OUT SPKA OUT SPKC OUT RST AIB 0 R67 DNP DNP 3 3V GND GND 3 3V 12V PVDD 10 F C17 10 F C28 10 F C55 10 F C63 1 2 3 J34 INA SEL IN A_RCA 1 2 3 J35 INB SEL IN B_RCA IN C_RCA...

Page 18: ...NP DNP 1000pF C44 DNP DNP 1000pF C60 DNP DNP HEATSINK GND Black J20 GNDCD OUT_A OUT_B OUT_C OUT_D OUTA OUTB OUTC OUTD Black J11 GNDAB 1 2 3 4 5 6 7 8 J16 OA OB OC OD GND 1 F C77 DNP DNP 3 30 R54 DNP D...

Page 19: ...206 GRM31CR71C106KAC 7L MuRata C18 C23 C57 C65 4 22pF CAP CERM 22 pF 50 V 5 C0G NP0 0603 0603 GRM1885C1H220JA01 D MuRata C19 C30 C58 C64 4 100pF CAP CERM 100 pF 50 V 5 C0G NP0 0603 0603 GRM1885C1H101J...

Page 20: ...ht 1 2 mm NRS4012T100MDGJV Taiyo Yuden Q1 Q2 2 60V MOSFET N CH 60 V 0 17 A SOT 23 SOT 23 2N7002 7 F Diodes Inc R1 R3 R30 3 0 RES 0 5 0 1 W 0603 0603 CRCW06030000Z0EA Vishay Dale R2 1 182k RES 182 k 1...

Page 21: ...HS no Sb Br D0008A NE5532ADR Texas Instruments U7 1 ULTRA SMALL SUPPLY VOLTAGE SUPERVISORS DCK0005A DCK0005A TPS3802K33DCKR Texas Instruments C25 C36 C44 C60 0 1000pF CAP CERM 1000 pF 50 V 5 C0G NP0 1...

Page 22: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

Page 23: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPA3251EVM...

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