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TDA2050 数据表(PDF) 5 Page - STMicroelectronics |
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TDA2050 数据表(HTML) 5 Page - STMicroelectronics |
5 / 18 page TDA2050 Split-supply application suggestions Doc ID 1461 Rev 3 5/18 2 Split-supply application suggestions The recommended values of the external components are those shown on the application circuit of Figure 5. Different values can be used. The following table can help the designer. Table 5. Recommended values of external components Component Recommended value Purpose Larger than recommended value Smaller than recommended value R1 22 k Ω Input impedance Increase of input impedance Decrease of Input Impedance R2 680 Ω Feedback resistor Decrease of gain(1) 1. The gain must be higher than 24 dB Increase of gain R3 22 k Ω Increase of gain Decrease of gain(1) R4 2.2 Ω Frequency stability Danger of oscillations C1 1 µF Input decoupling DC Higher low-frequency cutoff C2 22 µF Inverting input DC decoupling Increase of switch ON/OFF noise Higher low-frequency cutoff C3, C4 100 nF Supply voltage bypass Danger of oscillation C5, C6 220 µF Supply voltage bypass Danger of oscillation C7 0.47 µF Frequency stability Danger of oscillation |
类似零件编号 - TDA2050_11 |
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类似说明 - TDA2050_11 |
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