Philips Semiconductors

TDA8945S

15 W mono BTL audio amplifier

Product specification

Rev. 02 — 7 April 2000

3 of 21

9397 750 06866

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

7.

Pinning information

7.1 Pinning

7.2 Pin description

8.

Functional description

The TDA8945S is a mono BTL audio power amplifier capable of delivering 15 W

output power to an 8

Ω load at THD = 10%, using an 18 V power supply and an

external heatsink. 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 TDA8945S outputs are protected by an internal thermal shutdown protection

mechanism and a short-circuit protection.

Fig 2.

Pin configuration.

handbook, halfpage

TDA8945S

MBK937

1

2

3

4

5

6

7

8

9

OUT

−

VCC

OUT

+

IN

+

IN

−

SVR

MODE

GND

n.c.

Table 3:

Pin description

Symbol

Pin

Description

OUT

−

1

negative loudspeaker terminal

2

supply voltage

OUT+

3

positive loudspeaker terminal

IN+

4

positive input

IN

−

5

negative input

SVR

6

half supply voltage decoupling (ripple rejection)

MODE

7

mode selection input (standby, mute, operating)

GND

8

ground

n.c.

9

not connected