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TDA2003 Datasheet(PDF) 8 Page - STMicroelectronics |
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TDA2003 Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 10 page ![]() Component Recommmended value Purpose Larger than recommended value Smaller than recommended value C1 C1 2.2 µF Input DC decoupling Noise at switch-on, switch-off C2 470 µF Ripple rejection Degradation of SVR C3 0.1 µF Supply bypassing Danger of oscillation C4 1000 µF Output coupling to load Higher low frequency cutoff C5 0.1 µF Frequency stability Danger of oscillation at high frequencies with inductive loads CX ≅ 1 2 π BR1 Upper frequency cutoff Lower bandwidth Larger bandwidth R1 (Gv-1) • R2 Setting of gain Increase of drain current R2 2.2 Ω Setting of gain and SVR Degradation of SVR R3 1 Ω Frequency stability Danger of oscillation at high frequencies with inductive loads RX ≅ 20 R2 Upper frequency cutoff Poor high frequency attenuation Danger of oscillation PRATICAL CONSIDERATION Printed circuit board The layout shown in fig. 17 is recommended. If different layouts are used, the ground points of input 1 and input 2 must be well decoupled from the ground of the output through which a ratherhigh current flows. Assembly suggestion No electrical insulation is required between the package and the heat-sink.Pin length should be as short as possible. The soldering temperature must not exceed 260 °C for 12 seconds. Application suggestions The recommended component values are those shown in the application circuits of fig.16. Different values can be used. The following table is intended to aid the car-radio designer. 8/10 TDA2003 |
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