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Philips TDA8928J 2004 May 05 4, 6 BLOCK DIAGRAM, Fig.1 Block diagram.

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2004 May 05 4

Philips Semiconductors Preliminary speciﬁcation

Power stage 2 x 10 or 1 x 20 W class-D

audio ampliﬁer TDA8928J

6 BLOCK DIAGRAM

MGX377

handbook, full pagewidth

CONTROL

AND

HANDSHAKE

DRIVER

HIGH

TDA8928J

TEMPERATURE SENSOR

AND

CURRENT PROTECTION

DRIVER

LOW

temp

current

VSS1

VSS1 VSS2

VDD2

810

VDD2 VDD1

13 5

CONTROL

AND

HANDSHAKE

DRIVER

HIGH

DRIVER

LOW

EN1

DIAG

REL1

SW1

SW2

REL2

POWERUP

EN2

BOOT1

OUT1

STAB

OUT2

BOOT2

Fig.1 Block diagram.

Contents

Main Power stage 2 x 10 or 1 x 20 W class-D audio amplier TDA8928J Page 2004 May 05 4 6 BLOCK DIAGRAM Fig.1 Block diagram. TDA8928J Page Page SNW-FQ611 Page audio amplier TDA8928J Power stage 2 x 10 or 1 x 20 W class-D 2004 May 05 11 Fig.4 Test diagram. TDA8928J Page 2004 May 05 13 Fig.5 Single-ended self oscillating class-D system application diagram for TDA8928J. U1 TDA8928J 2004 May 05 14 Fig.7 Printed-circuit board (bottom copper) layout for TDA8928J. Bottom silk handbook, full pagewidth Fig.6 Printed-circuit board (bottom silk) layout for TDA8928J. Page Page 2004 May 05 17 15.5 Curves measured in reference design Fig.12 SVRR as function of frequency. Fig.11 Efficiency as function of output power. Fig.10 THD + N as function of frequency. 2004 May 05 18 Fig.13 S/N as function of output power. Fig.16 Outputpower as function of supply voltage. Fig.15 Gain as function of frequency. Fig.14 Channel separation as function of frequency. 2004 May 05 19 16 PACKAGE OUTLINE DBS17P: plastic DIL-bent-SIL power package; 17 leads (lead length 7.7 mm) SOT243-3 2004 May 05 20 Power stage 2 x 10 or 1 x 20 W class-D RDBS17P: plastic rectangular-DIL-bent-SIL power package; 17 leads (row spacing 2.54 mm) SOT577-2 Data Handbook IC26; Integrated Circuit Packages Page Philips Semiconductors a worldwide company