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MAX4090 Datasheet(PDF) 10 Page - Maxim Integrated Products |
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MAX4090 Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 17 page 3V/5V, 6dB Video Buffer with Sync-Tip Clamp and 150nA Shutdown Current 10 ______________________________________________________________________________________ 0.1 1 10 100 FREQUENCY RESPONSE FREQUENCY (MHz) 0 -60 -50 -40 -30 -20 -10 Figure 5. Frequency Response for R1 = R2 = 150 Ω R2 150 Ω R1 150 Ω C1 120pF C2 120pF L1 4.7 μH C3 6.8pF C4 0.1 μF R3 75 Ω C5 22 μF C6 22 μF C7 1 μF IN OUT GND FB SHDN VCC VCC VCC VOUT VIDEO CURRENT DAC RIS 49.9 Ω 3-POLE RECONSTRUCTION LPF MAX4090 Figure 6. Sag Correction Configuration Layout and Power-Supply Bypassing The MAX4090 operates from single 2.7V to 5.5V sup- ply. Bypass the supply with a 0.1µF capacitor as close to the pin as possible. Maxim recommends using microstrip and stripline techniques to obtain full band- width. To ensure that the PC board does not degrade the device’s performance, design it for a frequency greater than 1GHz. Pay careful attention to inputs and outputs to avoid large parasitic capacitance. Whether or not you use a constant-impedance board, observe the following design guidelines: • Do not use wire-wrap boards; they are too inductive. • Do not use IC sockets; they increase parasitic capacitance and inductance. • Use surface-mount instead of through-hole compo- nents for better, high-frequency performance. • Use a PC board with at least two layers; it should be as free from voids as possible. • Keep signal lines as short and as straight as possible. Do not make 90° turns; round all corners. |
Similar Part No. - MAX4090_09 |
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Similar Description - MAX4090_09 |
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