Anaren Features Excellent phase accuracy High sensitivity Octave bandwidths Low-noise video amplifier option Integrated Schottky-barrier detectors Rugged stripline construction Meets MIL-E-5400 Class 2 requirements Description The phase discriminator (correlator) accepts two signals of the same frequency and provides an output with relative phase and amplitude information. Two RF input signals, of amplitude A and B and relative phase of @, provide four video output signals. On the 20750 Series, these signal voltages are available at output connectors for direct application to an oscilloscope or for further video processing. With the 2A0750 Series, the four signals are combined and amplified, in an AC coupled, low-noise, video amplifier to provide two output signals. The video outputs from either series can be used to provide a circular (polar) oscilloscope display where radius is pro- portional to input signal strength (r=kAB) and angular Phase Discriminators (Correlators) Series 20750, 2A0750 Applications instantaneous phase and amplitude measurements Phase locked loops Polarization moniiors Direction finding S-parameter measurements Test and instrumentation systems Digital phase monitors deflection is proportional to relative phase ( ) between the input signals. More detailed information on theory of operation can be found on pages 199-200. The phase discriminator has application anywhere the relative phase and amplitude information of two RF signals is desired. Typically they are used for phase/amplitude measurements, for direction finding, measurement of complex reflection and/or transmission characteristics, and as correlators for closed-loop adaptive systems. They are especially useful for test and instrumentation systems where phase and amplitude information can instantaneously be obtained over octave bandwidths. See page 201 for other applications. This Series 20750, 2A0750 Phase Discriminators is an improved version of the 20530, 2A0530 correlators and is a replacement for them. Model No. Frequency Linearity Tangential VSWR (GHz) (Phase Accuracy) Sensitivity Max Max (Deg) (dBm) 20755 1-2 + 6 43 1.5 2A0755 1-2 + 6 43 1.5 20756 2-4 + 7 43 1.8 2A0756 2-4 + 7 43 1.8 20757 4-8 + 8 43 2.0 2A0757 4-8 + 8 ~ 43 2.0 20758 8-12.4 +10 - 41 2.5 2A0758 8-12.4 +10 ~ 41 2.5 20759 12-18 +12 40 3.0 2A0759 12-18 +12 40 3.0 (continued) Specitications subject to change without notice. 195 Electrical Specifications (Continued) Dynamic Range: 30dB Voltage/ Power Sensitivity: 100 mV/mW typ Note: Series 20750 series video outputs have a + 450 mV DC voltage offset. Bias: Series 20750 Series, +5V at 3mA Series 2A0750 Series, + 15V at 125 mA max Mechanical Specifications Figure 1 - Without Video Amplifier Wt.: 9.2 02. (261 gm) | | f 5.08 (124)n-- 37 (9} == 8.30190). = = = TYP as Figure 2 - With Video Amplifier Wt.: 24.2 oz. (686 gm) PROTECTIVE BOOT OVER CABLES @ -@ | | 275 (67) JW | J8| @ - l. 5.08 (124) a 38 << 5.30 (130) >! (9) 6 50 (159) on <t__.\eR Bod ws END VIEW WITH PROTECTIVE BOOT REMOVED Contact Anaren for latest outline details. Connectors: SMA, female, per MIL-C-39012 Mounting hole dia.: .145 + .005(3,7 + .1) All dimensions in inches and (mm) Specifications subject to change without notice 196 Video Amplifier Specifications (Series 2A0750): Video Bandwidth: 1KHz-10MHz min Voltage Gain: 200 nominal Output Noise: 10 mV RMS max Rise Time: 35 ns max Delay Time: 50 ns max Saturated Output: 4V p-p nominal (50 ohm load) Output Impedance: 50 ohms nom