Philips Semiconductors
TDA8943SF
6 W mono Bridge Tied Load (BTL) audio amplifier
Product specification Rev. 02 — 7 April 2000 3 of 20
9397 750 06865
© Philips Electronics N.V. 2000. All rights reserved.
7. Pinning information
7.1 Pinning
7.2 Pin description
8. Functional description
The TDA8943SF is a mono BTL audio power amplifier capable of delivering 6 W
output power to an 8 Ω load at THD = 10%, using a 12 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 TDA8943SF outputs are protected by an internal thermal shutdown protection
mechanism and a short-circuit protection.
Fig 2. Pin configuration.
handbook, halfpage
TDA8943SF
MBK941
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
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