TDA2050

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

5 of 8

www.unisonic.com.tw

QW-R107-036.C



TYPICAL APPLICATION CIRCUIT(CONT.)

FOR SINGLE SUPPLY APPLICATION SUGGESTIONS

Figure.2 Single Supply Typical Application Circuit

The following table demonstrates the recommended values of the external components are those shown

on above circuit. Different values can be used.

COMPONENT

PURPOSE

RECOMMENDED VALUE

TYPICAL

LARGER

SMALLER

R1, R2, R3

Biasing Resistor

22kΩ

R4

Feedback Resistor

680Ω

Decrease of Gain*

Increase of Gain

R5

22kΩ

Increase of Gain

Decrease of Gain*

R6

Frequency Stability

2.2Ω

Danger of Oscillations

C1

Non-Inverting Input

Decoupling DC

2.2μF

Higher Low-frequency cut-off

C2

Supply Voltage

Rejection

100μF

Worse Turn-off Transient

Worse Turn-on Delay

C3

Supply Voltage Bypass

1000μF

Danger of Oscillations

Worse of Turn-off Transient

C4

Inverting Input DC

Decoupling

22μF

Increase of Switch ON/OFF Higher Low-frequency cut-off

C5

Supply Voltage Bypass

100nF

Danger of Oscillations

C6

Frequency Stability

0.47μF

Danger of Oscillations

C7

Output DC Decoupling

1000μF

Higher Low-frequency cut-off

* The gain must be higher than 24dB

Note: If the supply voltage is lower than 40V and the load is 8Ω (or more), a lower value of C2(i.e. 22μF) can

be used. C7 can be larger than 1000μF only if the supply voltage does not exceed 40V.