TDA7263 Datasheet, PDF (5/8 Pages) STMicroelectronics – 12+12W STEREO AMPLIFIER WITH MUTING

TDA7263
APPLICATION SUGGESTION
The recommended values of the components are those shown on the typical application circuit. Different
values can be used; the following table can help the designer.
Component
R1 and R3
R2 and R4
R5 and R6
C1 and C2
C3
C4
C5
C6 and C7
C8 and C9
C10 and C11
Recomm.
Value
1.5KΩ
47Ω
4.7Ω
100nF
47µF
100nF
1000µF
47µF
0.1µF
1000µF
Purpose
Close loop gain setting (*)
Close loop gain setting (*)
Frequency stability
Input DC decoupling
- Ripple Rejection
- Mute time constant
Supply Voltage Bypass
Supply Voltage Bypass
Feedback input DC
decoupling
Frequency stability
Output DC decoupling
(*) Closed loop gain must be higher than 26dB
Larger Than
Increase of gain
Decrease of gain
Danger of oscillations
Higher SVR
Increase of the Switch-on
time
Increase of the Switch-on
time
Smaller Than
Decrease of gain
Increase of gain
Higher low frequency cutoff
- Degradation of SVR
- Worse turn-off pop by muting
Danger of oscillations
Danger of Switch-on time
Danger of oscillations
Higher low-frequency cut-off
Figure 9: P.C. Board and Component Layout (1:1 scale)
Note: Use either C1, C2 (Polyester) or C1(*), C2(*) (Electrolytic) but not both.
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