APPLICATION SUGGESTION

The recommended values of the components are those shown on application circuit of fig. 21. Different

values can be used.

The following table can help the designer.

Component

Raccom.

value

Purpose

Larger than

recommended value

Smaller than

recommended value

Allowed range

Min.

Max.

10K

Ω

Input signal imped.

for muting operation

Increase of the atte-

nuation in muting-on

condition. Decrease

of the input sensitivity.

Decrease of the

attenuation in muting

on condition.

3.3K

Ω

Close loop gain

setting.

Increase of gain.

Decrease of gain.

Increase quiescent

current.

100

Ω

Close loop gain

setting.

Decrease of gain.

Increase of gain.

1

Ω

Frequency stability

Danger of oscillation

at high frequencies

with inductive loads.

20K

Ω

Volume

potentiometer.

Increase of the

switch-on noise.

Decrease of the input

impedance and of the

input level.

10K

Ω

100K

Ω

1

µF

1

µF

0.22

µF

Input DC decoupling.

Higher low frequency

cutoff.

2.2

µF

Inverting input DC

decoupling.

Increase of the

switch-on noise.

Higher low frequency

cutoff.

0.1

µF

0.1

µF

Supply voltage

bypass.

Danger of oscillations.

10

µF

Ripple rejection.

Increase of SVR.

Increase of the

switch-on time

Degradation of

SVR

2.2

µF

100

µF

47

µF

Bootstrap.

Increase of the distor-

tion at low frequency.

10

µF

100

µF

0.22

µF

Frequency stability.

Danger of oscillation.

2200

µF

Ω)

1000

µF

Ω)

Output DC

decoupling.

Higher low frequency

cutoff.

11/15

TDA1910