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TDA2050 Folha de dados(PDF) 7 Page - STMicroelectronics |
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TDA2050 Folha de dados(HTML) 7 Page - STMicroelectronics |
7 / 18 page TDA2050 Single-supply application suggestions Doc ID 1461 Rev 3 7/18 3 Single-supply application suggestions The recommended values of the external components are those shown in the application circuit of Figure 6. Different values can be used. The following table can help the designer. Table 6. Recommonded values Note: If the supply voltage is lower than 40 V and the load is 8 ohm (or more), a lower value of C2 can be used (i.e. 22 mF). C7 can be larger than 1000 µF only if the supply voltage does not exceed 40 V. Component Recommended value Purpose Larger than recommended value Smaller than recommended value R1, R2, R3 22 k Ω Biasing resistor R4 680 Ω Feedback resistor Increase of gain Decrease of gain(1) 1. The gain must be higher than 24 dB R5 22 k Ω Decrease of gain(1) Increase of gain R6 2.2 Ω Frequency stability Danger of oscillations C1 2.2 µF Input decoupling DC Higher low-frequency cutoff C2 100 µF Supply voltage rejection Worse turn-off transient Worse turn-on delay C3 1000 µF Supply voltage bypass Danger of oscillations Worse turn-off transient C4 22 µF Inverting input DC decoupling Increase of switching ON/OFF Higher low-frequency cutoff C5 100 nF Supply voltage bypass Danger of oscillations C6 0.47 µF Frequency stability Danger of oscillations C7 1000 µF Output DC decoupling Higher low-frequency cutoff |
Nº de peça semelhante - TDA2050_11 |
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Descrição semelhante - TDA2050_11 |
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