E-TDA2030AV 查看數據表（PDF） - STMicroelectronics
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E-TDA2030AV Datasheet PDF : 23 Pages
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TDA2030A
6
Application recommendation
Application recommendation
The recommended values of the components are those shown in the application circuit of
Figure 17. Different values can be used, please refer to the guidelines in Table 7.
Table 7. Recommended values of components for a typical amplifier
Recom.
Comp.
value
Purpose
Larger than
recommended value
Smaller than
recommended value
R1
22 kΩ Closed loop gain setting Increase of gain
Decrease of gain
R2
680 Ω Closed loop gain setting Decrease of gain(1)
Increase of gain
R3
22 kΩ
Non inverting input
biasing
Increase of input impedance
t(s) Danger of oscillation at high
R4
1 Ω Frequency stability
frequencies with inductive loads
uc R5
≅ 3 R2 Upper frequency cutoff Poor high-frequency attenuation
rod C1
1 μF Input DC decoupling
P C2
22 μF Inverting DC decoupling
lete C3, C4
o C5, C6
s C7
0.1 μF
100 μF
0.22 μF
Supply voltage bypass
Supply voltage bypass
Frequency stability
- Ob C8 ≅ 2----π----B-1---R-----1-- Upper frequency cutoff Smaller bandwidth
t(s) D1, D2 1N4001 To protect the device against output voltage spikes
Obsolete Produc 1. The value of closed loop gain must be higher than 24 dB.
Decrease of input
impedance
Danger of oscillation
Increase of low-frequency
cutoff
Increase of low-frequency
cutoff
Danger of oscillation
Danger of oscillation
Larger bandwidth
Larger bandwidth
Doc ID 1459 Rev 2
19/23
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