Components

Comments

1 R1 R2

Sets voltage gain

R5 R4

R

R1

for one channel

R

R5

for the other

Where R’ is the equivalent resistance

of R2 in parallel with an internal 10k

resistor

10k

If R2 m 10k then

R2

R1

2 R3

Adjusts output symmetry for maximum

power output

Works to stabilize internal output

should be ceramic disc or equivalently

good high frequency capacitor

4 C1 C9

Input coupling capacitor Low

frequency pole set by

1

Decreasing capacitor value will also

increase noise

Components

Comments

5 C4 C5

Bootstrap capacitors used to increase

drive to output stage

6 C3

Improves power supply rejection

Increasing C3 increases turn-on delay

(approximately 2 ms per mF)

7 C2 C6

Inverting input DC decouple Low

frequency pole

1

Z (inverting)

10 kX

Output coupling capacitor Isolates

pins 10 and 8 from load Low

frequency pole

1

Power supply filtering

TLH5129 – 4

FIGURE 2 10WChannel Stereo Amplifier Application and Test Circuit

5