INTEGRATED CIRCUITS DATA SHEET TDA8928J Power stage 2 x 10 or 1 x 20 W class-D audio amplifier Preliminary specification Supersedes data of 2004 Feb 04 2004 May 05
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier CONTENTS TDA8928J 15 TEST AND APPLICATION INFORMATION SE application Package ground connection Output power Reference design Printed-circuit board Bill of materials Curves measured in reference design 1 FEATURES 2 APPLICATIONS 3 GENERAL DESCRIPTION 4 QUICK REFERENCE DATA 5 ORDERING INFORMATION 15.1 15.2 15.3 15.4 15.4.1 15.4.2 15.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier 1 FEATURES 3 • High efficiency (> 90 %) TDA8928J GENERAL DESCRIPTION The TDA8928J is a switching power stage for a high efficiency class-D audio power amplifier system. • Supply voltage from ±7.5 V to ±30 V With this power stage a compact 2 × 10 W self oscillating digital amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier 6 TDA8928J BLOCK DIAGRAM VDD2 VDD1 handbook, full pagewidth 13 5 TDA8928J EN1 SW1 REL1 STAB DIAG POWERUP EN2 SW2 REL2 4 1 2 6 DRIVER HIGH CONTROL AND HANDSHAKE 7 OUT1 DRIVER LOW 9 temp 3 TEMPERATURE SENSOR AND current CURRENT PROTECTION 15 14 17 16 VSS1 VDD2 12 BOOT2 DRIVER HIGH CONTROL AND HANDSHAKE 11 OUT2 DRIVER LOW 8 10 VSS1 VSS2 Fig.1 Block diagram.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier 7 TDA8928J PINNING SYMBOL PIN DESCRIPTION SW1 1 digital switch input; channel 1 REL1 2 digital control output; channel 1 DIAG 3 digital open-drain output for overtemperature and overcurrent report handbook, halfpage SW1 1 REL1 2 DIAG 3 EN1 4 VDD1 5 BOOT1 6 EN1 4 digital enable input; channel 1 VDD1 5 positive power supply; channel 1 BOOT1 6 bootstrap capacitor; channel
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier 8 8.2 FUNCTIONAL DESCRIPTION The power stage TDA8928J is used for driving the loudspeaker load. It performs a level shift from the low-power digital PWM signal, at logic levels, to a high-power PWM signal that switches between the main supply lines. A 2nd-order low-pass filter converts the PWM signal into an analog audio signal across the loudspeaker. 8.2.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J 9 LIMITING VALUES In accordance with the Absolute Maximum Rate System (IEC 60134). SYMBOL PARAMETER CONDITIONS MIN. MAX.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J 12 DC CHARACTERISTICS VP = ±12.5 V; Tamb = 25 °C; measured in test diagram of Fig.4; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply VP supply voltage Iq(tot) total quiescent current ±7.5 ±12.5 ±30 V no load connected − 25 45 mA outputs floating − 5 10 mA referenced to VSS 11.7 13 14.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J 13 AC CHARACTERISTICS VP = ±12.5 V; Tamb = 25 °C; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Single-ended application; note 1 Po output power RL = 8 Ω THD = 0.5 % 7(2) 8 − W THD = 10 % 9(2) 10 − W THD = 0.5 % − 4 − W THD = 10 % − 5 − W fi = 1 kHz − 0.05 0.1 % fi = 10 kHz − 0.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J 14 SWITCHING CHARACTERISTICS VP = ±12.5 V; Tamb = 25 °C; measured in Fig.4; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT PWM outputs (pins OUT1 and OUT2); see Fig.
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Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier 15.1 TDA8928J SE application For a SE application the application diagram as shown in Fig.5 can be used. 15.2 Package ground connection The heatsink of the TDA8928J is connected internally to VSS. 15.
This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... C2 100 nF C4 470 µF (35 V) L2 bead C39 R32 2.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier 15.4.1 TDA8928J PRINTED-CIRCUIT BOARD The printed-circuit board dimensions are 8.636 × 5.842 cm; single-sided copper of 35 µm; silk screen on both sides; 79 holes; 94 components (32 resistors and 41 capacitors).
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J TDA8928ST L3 C5 J2 U1 J1 state of D art VP typ +/- 12.5 V 2 x 10 W in 8 Ω single layer C27 C7 C6 L4 demo PCB v2r4 RL 1 2003 DZ1 C4 L1 C3 C14 L2 C32 C15 J3 C33 S1 DZ2 Out2 VSS Out1 Con1 GND Con2 VDD Con3 CO2 CO1 In1 In2 power_on Top silk mgx381 Fig.8 Printed-circuit board (top silk) layout for TDA8928ST. 15.4.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier COMPONENT DESCRIPTION TDA8928J TYPE C19, C20, C21, C22, C39, C42 2.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier 15.5 TDA8928J Curves measured in reference design MGX383 102 handbook, halfpage MGX384 102 handbook, halfpage THD + N (%) THD + N (%) 10 10 (1) 1 1 (1) 10−1 (2) 10−1 (2) (3) 10−2 10−2 10−3 10−2 10−1 1 10 Po (W) 10−3 10 102 2 × 8 Ω SE; VP = ±12.5 V. (1) 6 kHz. (2) 1 kHz. (3) 100 Hz. 102 103 104 f i (Hz) 105 2 × 8 Ω SE; VP = ±12.5 V. (1) Po = 10 W. (2) Po = 1 W. Fig.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J MGX387 100 MGX388 0 handbook, halfpage handbook, halfpage αcs (dB) S/N (dB) 80 −20 60 −40 40 −60 20 −80 (1) (2) 0 10−2 10−1 1 10 Po (W) −100 102 10 102 103 104 f i (Hz) 105 2 × 8 Ω SE; VP = ±12.5 V. (1) Po = 1 W. (2) Po = 10 W. 2 × 8 Ω SE; VP = ±12.5 V. Fig.14 Channel separation as function of frequency. Fig.13 S/N as function of output power.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J 16 PACKAGE OUTLINE DBS17P: plastic DIL-bent-SIL power package; 17 leads (lead length 7.7 mm) SOT243-3 non-concave Dh x D Eh view B: mounting base side A2 d B j E A L3 L c Q 1 v M 17 e1 Z e2 m w M bp e 0 5 10 mm scale DIMENSIONS (mm are the original dimensions) UNIT A A2 bp c D (1) d Dh E (1) e mm 17.0 15.5 4.6 4.4 0.75 0.60 0.48 0.38 24.0 23.6 20.0 19.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J RDBS17P: plastic rectangular-DIL-bent-SIL power package; 17 leads (row spacing 2.54 mm) SOT577-2 non-concave Dh x D Eh view B: mounting base side A2 d B j E A L 1 e1 Z w M bp e c e2 17 v M 0 5 Q L1 10 mm scale DIMENSIONS (mm are the original dimensions) UNIT A A2 bp c D(1) d Dh E(1) e e1 e2 Eh j L L1 Q v w x Z (1) mm 13.5 4.6 4.4 0.75 0.60 0.
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier The total contact time of successive solder waves must not exceed 5 seconds. 17 SOLDERING 17.1 Introduction to soldering through-hole mount packages The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg(max)).
Philips Semiconductors Preliminary specification Power stage 2 x 10 or 1 x 20 W class-D audio amplifier TDA8928J 18 DATA SHEET STATUS LEVEL DATA SHEET STATUS(1) PRODUCT STATUS(2)(3) Development DEFINITION I Objective data II Preliminary data Qualification This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date.
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