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Figure 3 :
12 W Bridge Amplifier (d = 0.5%, G
V
= 40 dB).
APPLICATION INFORMATION
The recommended values of the components are those shown on application circuit of fig.1. Different values
can be used ; the following table can help the designer.
APPLICATION SUGGESTION
Component Recommended value Purpose Larger Than Smaller Than
R1, R3 1.3KΩ Close Loop Gain
Setting (*)
Increase of Gain Decrease of Gain
R2 and R4 18Ω Decrease of Gain Increase of gain
R5 and R6 1Ω Frequency stability Danger of Oscillation
at High Frequency
with Inductive Load
C1 and C2 2.2µF Input DC Decoupling High Turn-on Delay High Turn-on Pop
Higher Low Frequency
Cutoff. Increase of
Noise
C3 22µF Ripple Rejection Better SVR Increase
of the Switch-on Time
Degradation of SVR
C6 and C7 220µF Feedback Input DC
Decoupling
C8 and C9 0.1µF Frequency Stability Danger of Oscillation
C10 and C11 1000µF to 2200µF Output DC Decoupling Higher Low-frequency
Cut-off
(*) The closed loop gain must be higher than 26 dB.
TDA2007A
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