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打糯米糍粑APPLICATIONS INFORMATION NOMINAL OPERATION
All electrical specifications are bad on the nominal conditions of V s1 = V s2 = V s3 = 7.5 Vdc (Pins 2, 3, 4) and P out equal to 2 watts. With the conditions, maximum current density on any device is 1.5 x 105 A/cm2 and maximum die temperature with 100°C ca operating temperature is 165°C. While the modules are designed to have excess gain margin with ruggedness, operation of the units outside the limits of published specifications is not recommended unless prior communications regarding intended u have been made with the factory reprentative.
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GAIN CONTROL
青山不老The module output should be limited to 2 watts. The pre-ferred method of power output control is to fix V s1 = V s2 = V s3 = 7.5 Vdc (Pins 2, 3, 4), P in (Pin 1) at 1 mW, and vary V Cont (Pin 1) voltage.DECOUPLING
论真理Due to the high gain of the three stages and the module size limitation, external decoupling networks require careful consideration. Pins 2, 3 and 4 are internally bypasd with a 0.018 µF chip capacitor which is effective for frequencies from 5 MHz through 905 MHz. For bypassing frequencies below 5 MHz, networks equivalent to that shown in Figure 1 are recommended. Inadequate decoupling will r
男人嘴小什么命esult in spu-rious outputs at certain operating frequencies and certain pha angles of input and output VSWR.
LOAD MISMATCH
During final test, each module is load mismatch tested in a fixture having the identical decoupling networks described in Figure 1. Electrical conditions are V s1 = V s2 = V s3 equal to 10 Vdc, VSWR equal to 10:1, and output power equal to 3 watts.
MHW803–2
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MOTOROLA RF DEVICE DATA
