Datasheet

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−
V
CC
OUT+
IN+
IN−
SVR
MODE
GND
n.c.
Table 3: Pin description
Symbol Pin Description
OUT− 1 negative loudspeaker terminal
V
CC
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