Circuito integrado

TDA8920B
2 × 100 W class-D power amplifier
Rev. 01 — 1 October 2004 Preliminary data sheet

1. General description
The TDA8920B is a high efficiency class-D audio power amplifier with very low dissipation. The typical output power is 2 × 100 W. The device is available in the HSOP24 power package and in the DBS23P through-hole power package. The amplifier operates over a wide supply voltage rangefrom ±12.5 V to ±30 V and consumes a very low quiescent current.

2. Features
s s s s s s s s s s s s s Zero dead time switching Advanced current protection: output current limiting Smooth start-up: no pop-noise due to DC offset High efficiency Operating supply voltage from ±12.5 V to ±30 V Low quiescent current Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-TiedLoad (BTL) Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in Bridge-Tied Load (BTL) High output power High supply voltage ripple rejection Internal switching frequency can be overruled by an external clock Full short-circuit proof across load and to supply lines Thermally protected.

3. Applications
s s s s s Television sets Home-sound sets Multimedia systems All mains fed audio systems Caraudio (boosters).

Philips Semiconductors

TDA8920B
2 × 100 W class-D power amplifier

4. Quick reference data
Table 1: Quick reference data Conditions Min ±12.5 no load; no filter; no RC-snubber network connected RL = 3 Ω; THD = 10 %; VP = ±27 V RL = 4 Ω; THD = 10 %; VP = ±27 V Mono bridge-tied load configuration Po output power RL = 6 Ω; THD = 10 %; VP = ±27 V 210 W Typ ±27 50 Max ±30 65Unit V mA Symbol Parameter General; VP = ±27 V VP Iq(tot) supply voltage total quiescent supply current output power

Stereo single-ended configuration Po 110 86 W W

5. Ordering information
Table 2: Ordering information Package Name TDA8920BTH TDA8920BJ HSOP24 DBS23P Description plastic, heatsink small outline package; 24 leads; low stand-off height plastic DIL-bent-SIL power package; 23leads (straight lead length 3.2 mm) Version SOT566-3 SOT411-1 Type number

9397 750 13356

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

Preliminary data sheet

Rev. 01 — 1 October 2004

2 of 34

Philips Semiconductors

TDA8920B
2 × 100 W class-D power amplifier

6. Block diagram
VDDA2 3 (20) VDDA1 10 (4) VDDP2 23 (16) VDDP1 14 (8) 15 (9)

STABI PROT 18 (12) 13(7) RELEASE1

BOOT1

IN1M IN1P

9 (3) 8 (2) INPUT STAGE PWM MODULATOR

CONTROL AND ENABLE1 HANDSHAKE

SWITCH1

DRIVER HIGH 16 (10) DRIVER LOW VSSP1 OUT1

SGND1 OSC MODE

11 (5) 7 (1) 6 (23)

mute STABI

OSCILLATOR MODE

MANAGER

TEMPERATURE SENSOR CURRENT PROTECTION VOLTAGE PROTECTION

TDA8920BTH (TDA8920BJ)

VDDP2 22 (15) BOOT2

SGND2

2 (19) mute ENABLE2 CONTROLSWITCH2 AND HANDSHAKE RELEASE2 DRIVER HIGH 21 (14) DRIVER LOW 17 (11) VSSP1 20 (13) VSSP2 OUT2

IN2P IN2M

5 (22) 4 (21) INPUT STAGE PWM MODULATOR

1 (18) VSSA2

12 (6) VSSA1

24 (17) VSSD

19 (-) n.c.

coa023

Pin numbers in parenthesis refer to the TDA8920BJ.

Fig 1. Block diagram.

9397 750 13356

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.Preliminary data sheet

Rev. 01 — 1 October 2004

3 of 34

Philips Semiconductors

TDA8920B
2 × 100 W class-D power amplifier

7. Pinning information
7.1 Pinning

OSC IN1P IN1M VDDA1 SGND1 VSSD 24 VDDP2 23 BOOT2 22 OUT2 21 VSSP2 20 n.c. 19 STABI 18 VSSP1 17 OUT1 16 BOOT1 15 VDDP1 14 PROT 13
001aab217

1 2 3 4 5 6 7 8 9

1 2 3 4 5

VSSA2 SGND2 VDDA2 IN2M IN2P MODE OSC IN1P IN1MVSSA1 PROT VDDP1 BOOT1

OUT1 10 VSSP1 11 STABI 12 VSSP2 13 OUT2 14 BOOT2 15 VDDP2 16 VSSD 17 VSSA2 18 SGND2 19 VDDA2 20 IN2M 21 IN2P 22 MODE 23
001aab218

TDA8920BTH

6 7 8 9

TDA8920BJ

10 VDDA1 11 SGND1 12 VSSA1

Fig 2. Pin configuration TDA8920BTH.

Fig 3. Pin configuration TDA8920BJ.

7.2 Pin description
Table 3: Pin description Description TDA8920BJ 18 19 20 21 22 23 1 2 3 4...