
Philips Semiconductors TDA8944J
2 x 7 W stereo BTL audio amplifier
Product specification Rev. 02 — 14 February 2000 12 of 21
9397 750 06861 © Philips Electronics N.V. 2000. All rights reserved.
13. Internal circuitry
Table 9: Internal circuitry
Pin Symbol Equivalent circuit
6 and 8 IN1+ and IN1−
12 and 9 IN2+ and IN2−
1 and 4 OUT1−and OUT1+
14 and 17 OUT2−and OUT2+
10 MODE
11 SVR
1.5 kΩ1.5 kΩ
45 kΩ45 kΩ
VCC
VCC
VCC
MGL946
1 : 1 1 : 1
1/2 VCC
(SVR)
8, 9 6, 12
40 Ω
100 Ω
MGL947
1, 4, 14, 17
1/2 VCC
1 kΩ
10 kΩ
10 kΩ
OFF
HIGH MUTE
HIGH
1 kΩ
VCC
VCC
VCC
MGL949
10
Standby
20 kΩ
20 kΩ
VCC
MGL948
11