LM1896N-2 National Semiconductor, LM1896N-2 Datasheet - Page 7

• Manufacturer Part Number: LM1896N-2
• Description: IC AMP AUDIO PWR 2.1W STER 14DIP
• Manufacturer: National Semiconductor
• Type: Class ABr

Specifications of LM1896N-2

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 2.1W x 1 @ 8 Ohm; 1.3W x 2 @ 8 Ohm
• Voltage - Supply: 3 V ~ 10 V
• Features: Depop
• Mounting Type: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *LM1896N-2; LM1896-2

Figure 5 and Figure 6 show printed circuit board layouts for
Application Hints
Printed Circuit Layout
Printed Circuit Board Layout
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
(Continued)
FIGURE 5 Printed Circuit Board Layout for the LM1896
Figure 4 Bridge Amplifier Connection
7
less than 50 k
oscillation is dependent on the gain and the proximity of the
bridge elements R
mode is not used do not insert R
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)
to prevent an input-output oscillation This
B
and C
B
to the (
TL H 7920– 11
B
C
a
B
) input If the bridge
into the PCB
TL H 7920 – 10