TDA2003AH View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA2003AH

TDA2003A, TDA2003AV, TDA2003AH / 10W CAR RADIO AUDIO AMPLIFIER

STMicroelectronics 

TDA2003A

Application information

3.2.3

Application recommendations

The recommended component values are those shown in the application circuit in

Figure 20. Different values can be used. The following table is intended to aid the car-radio

designer.

Table 5. Recommended values of the components of a bridge application circuit

Component

Recommended

value

Purpose

Larger than

Smaller than

recommended value recommended value C1

C1

2.2 µF

Input DC decoupling

C2

470 µF

Ripple rejection

C3

0.1 µF

Supply bypassing

C4

1000 µF

Output coupling to load

C5

0.1 µF

Frequency stability

-

Noise at switch-on, switch-off

-

Degradation of SVR

-

Danger of oscillation

-

Higher low frequency cutoff

Danger of oscillation at high

-

frequencies with inductive

loads

CX

≅ 2----π----B-1---R-----1--

Upper frequency cutoff

Lower bandwidth

Larger bandwidth

R1

(Gv-1). R2

Setting of gain

-

Increase of drain current

R2

2.2 Ω

Setting of gain and SVR Degradation of SVR

-

Danger of oscillation

R3

1Ω

Frequency stability

at high frequencies

-

with inductive loads

Rx

≅ 20 R2

Upper frequency cutoff

Poor high frequency

attenuation

Danger of oscillation

Doc ID 018796 Rev 4

15/19

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