SINGLE SUPPLY APPLICATION

Component

Recomm.

value

Purpose

Larger than

recommended value

Smaller than

recommended value

R1

150 k

Ω

Closed loop gain

setting

Increase of gain

Decrease of gain (*)

R2

4.7 k

Ω

Closed loop gain

setting

Decrease of gain (*)

Increase of gain

R3

100 k

Ω

Non inverting input

biasing

Increase of input

impedance

Decrease of input

impedance

R4

1

Ω

Frequency stability

Danger of osccilat. at

high frequencies

with induct. loads

100 k

Ω

Non inverting input Biasing

Power Consumption

C1

1

µF

Input DC

decoupling

Increase of low

frequencies cutoff

C2

22

µF

Inverting DC

decoupling

Increase of low

frequencies cutoff

C3

0.1

µF

Supply voltage

bypass

Danger of

oscillation

C5

100

µF

Supply voltage

bypass

Danger of

oscillation

C7

0.22

µF

Frequency stability

Danger of oscillation

C8

≅

1

2

Upper frequency

cutoff

Smaller bandwidth

Larger bandwidth

D1, D2

1N4001

To protect the device against output voltage spikes

(*) Closed loop gain must be higher than 24dB

TDA2030

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