TLH7920 – 10

Figure 4 Bridge Amplifier Connection

Printed Circuit Layout

Printed Circuit Board Layout

Figure 5 and Figure 6 show printed circuit board layouts for

the LM1896 and LM2896 The circuits are wired as stereo

amplifiers The signal source ground should return to the

input ground shown on the boards Returning the loads to

power supply ground through a separate wire will keep the

THD at its lowest value The inputs should be terminated in

less than 50 kX to prevent an input-output oscillation This

oscillation is dependent on the gain and the proximity of the

To wire the amplifer into the bridge configuration short the

capacitor on pin 7 (pin 1 of the LM1896) to ground Connect

together the nodes labeled BRIDGE and drive the capacitor

connected to pin 5 (pin 14 of the LM1896)

TLH7920 – 11

FIGURE 5 Printed Circuit Board Layout for the LM1896

7