HMC630LP3 Datasheet, PDF (6/8 Pages) Hittite Microwave Corporation – GaAs HBT VECTOR MODULATOR 700 - 1000 MHz

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Application Circuit
HMC630LP3 / 630LP3E
GaAs HBT VECTOR
MODULATOR 700 - 1000 MHz
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* Pins 15 & 16 are redundant I & Q inputs.
Gain and Phase control are applied through the I and Q control ports. For a given linear gain (G) and phase (θ) setting, the
voltages applied to these ports in all measurements are calculated as follows:
I(G,θ ) = Vmi + 1.0V ^G Cos(θ )
G max
Q(G,θ ) = Vmq + 1.0V ^G Sin(θ )
G max
Where Vmi and Vmq are the I and Q voltage settings corresponding to maximum isolation at room temperature and F = 0.9 GHz.
Note that G=10^X and Gmax = 10^Y where x = ^{Gain Setting ( dB)} and y = ^{Max Gain Setting( dB)} . Nominally Vmi = Vmq = 1.5V, Gmax = 0.316.
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