Component

Typical Value

Comments

1 mF

1

100k

Sets input impedance and DC bias to input

100k

51k

10 mF

Feedback capacitor This reduces the gain to unity at DC for minimum offset voltage at the

1

5 pF

Compensation capacitor Sets gain bandwidth product and a high frequency pole

1

GBW

500 kHz

39k

AB bias resistor

10k

AB bias potentiometer Adjust to set bias current in the output stage

01 mF

Bypass capacitor for bias This improves high frequency distortion and transient response

5 pF

Ripple capacitor This improves negative supply rejection at midband and high frequencies

100X

Bleed resistor This removes stored charge in output transistors

27X

will vary slightly for different output devices

01 mF

output power transistors

03X

Emitter degeneration resistor This resistor gives thermal stability to the output stage

quiescent current IRC PW5 type

39k

Shutdown resistor Sets the amount of current pulled out of pin 14 during shutdown

1000 pF

Compensation capacitors for protection circuitry

10X

Used to isolate capacitive loads usually 20 turns of wire wrapped around a 10X 2W resistor

4