Philips Semiconductors

TDA8941P

1.5 W mono BTL audio amplifier

Product specification

Rev. 02 — 7 April 2000

3 of 21

9397 750 06864

© Philips Electronics N.V. 2000. All rights reserved.

7.

Pinning information

7.1 Pinning

7.2 Pin description

8.

Functional description

The TDA8941P is a mono BTL audio power amplifier capable of delivering 1.5 W

output power to an 16

Ω load at THD = 10%, using a 9 V power supply. The voltage

gain is fixed at 32 dB.

With the three-level MODE input the device can be switched from ‘standby’ to ‘mute’

and to ‘operating’ mode.

The TDA8941P outputs are protected by an internal thermal shutdown protection

mechanism and a short-circuit protection.

8.1 Input configuration

The TDA8941P inputs can be driven symmetrical (floating) as well as asymmetrical.

In the asymmetrical mode one input pin is connected via a capacitor to the signal

ground which should be as close as possible to the SVR (electrolytic) capacitor

coupling capacitors for both pins are necessary.

Fig 2.

Pin configuration.

handbook, halfpage

1

2

3

4

8

7

6

5

MGR892

TDA8941P

OUT

+

GND

SVR

VCC

OUT

−

IN

−

IN

+

MODE

Table 3:

Pin description

Symbol

Pin

Description

1

supply voltage

OUT+

2

positive loudspeaker terminal

IN+

3

positive input

MODE

4

mode selection input (standby, mute, operating)

IN

−

5

negative input

SVR

6

half supply voltage decoupling (ripple rejection)

OUT

−

7

negative loudspeaker terminal

GND

8

ground