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| PCM-3 Series PHASE COMPARATORS 10 to 500 MHz / High Signal Isolation / High Accuracy / SMA Connectors PRINCIPAL SPECIFICATIONS Model Number PCM-3-***B Center Frequency, fo, MHz 10 - 500 Usable Bandwidth, MHz fo 5% GENERAL SPECIFICATIONS RF Characteristics: Phase Difference Range: 0 - 360 VSWR (RF/LO): 2.0:1 max. LO Input Power (Ref.): +10 1 dBm RF Input Power (Unknown): +2 dBm max. Rise Time/Fall Time: 100 ns typ. Impedance (Unknown & Ref.):50 nom. Video Output Characteristics: ``X'' Output: K Cos ``Y'' Output: K Sin Peak Amplitude (RF=0 dBm):150 mV min. (into 150 ) For complete Model Number replace *** with desired Center Frequency, fo in MHz. Output Voltage as a Function of Relative Phase Angle 160 0 mV -160 0 90 180 270 360 Package Outline Bandwidth: DC-10% of RF Impedance (X and Y): 150 nom. Signal Leakage (Isolation): 30 dB typ. Output Accuracy: Amplitude Balance: 5 mV max. Zero Crossing (In-Phase Inputs): 1 @ fo Phase Error, Arc tan : 5 @ fo Weight, nominal: 0.32 oz (9 g) Operating Temperature: -- 55 to +85C General Notes: 1. Merrimac Phase Comparators provide two output signals each of which is proportional to the phase relation of the two inputs. 2. One output is proportional to the sine of the relative phase angle between the RF and LO inputs while the other output represents the cosine of the relative phase angle between the inputs. Using the sine and cosine outputs together resolves the inherent -period ambiguity across four quadrants for both outputs. 3. The phase comparator is an integrated assembly consisting of a power divider, two balanced mixers and a 90 quadrature hybrid. Two diplexers attenuate the second harmonic (2 fo) at the outputs. 4. Custom designs are available that provide higher precision and better accuracy. Inquiries concerning your special applications are welcomed. 23Feb96 NOTES: 1. Tolerance on 3 place decimals .020(.51) except as noted. 2. Dimensions in inches over millimeters. F rf t e if r to c n a tM ERRI AC /41 Faifel Pl,W estCal el,NJ,07006 / 973o ur h r n o ma in o t c M ri d . dw l 5751300 /FAX 973- 0531 575- |
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