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| PTB & PTM-84B Series 8-BIT DIGITAL PHASE SHIFTER 100 to 500 MHz / 1.4 Phase Res. / Monotonic / Broadband, Switched Cable Design / BNC or SMA PRINCIPAL SPECIFICATIONS Calibration Frequency, fc, MHz 100 to 500 Usable Bandwidth, MHz fc 40% SMA Model Number BNC Model Number GENERAL SPECIFICATIONS Phase Shift: Bit Count: 0 to 360 nom.@ fc 8 PTM-84B-***B PTB-84B-***B Least Significant Bit: 1.4 Most Significant Bit: 180 Accuracy at fc: 1/2 of LSB typ. 50 nom. guaranteed monotonic For complete Model Number replace *** with desired Calibration Frequency, fc in MHz. General Notes: 1. Digital phase shifters in the PTM-84B series are controlled directly by TTL and are available for frequencies from 100 to 500 MHz. 2. Each model provides 360 of phase shift at a selected calibration frequency in 8 binary increments (255 steps) resulting in 1.4 resolution. 3. Phase shift is based on propagation delay through precisely calibrated cables. Selecting a specific phase shift is accomplished by entering a digital word that in turn switches in appropriate delay lines through fast-acting PIN diodes. 4. Advantages of the switched-line phase shifter over the digitally controlled analog type include potential for higher accuracy and smaller value of the Least Significant Bit (LSB). 5. Phase shifters based on switched cables are inherently stable and well matched. Each bit can be set and held very closely in binary increments from the LSB to the MSB (Most Significant Bit). Impedance: VSWR: Insertion Loss, IL: Input Power: Control Input: Logic Sense: Supply Power: Settling Time: Weight, nominal: Operating Temp: 1.3:1 max. 2.5 dB nom., 4 dB max. +10 dBm max. 8-Bit TTL @ 2 loads max. per Bit IL Variation vs. Cont: 0.2 dB @ mid band Positive +5 VDC@500 mA max. +15 VDC@150 mA max. 1 s max. 10 oz (285 g) -- 55 to +85C Functional Schematic Diagram 26Apr96 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- PTB & PTM-84B Series 8-BIT DIGITAL PHASE SHIFTER 100 to 500 MHz / 1.4 Phase Res. / Monotonic / Broadband, Switched Cable Design / BNC or SMA Package Outline LSB MSB Bit 1 2 3 4 5 6 7 8 Phase Increment 1.40 2.81 5.62 11.25 22.5 45.0 90.0 180.0 NOTES: 1. Tolerance on 3 place decimals 0.020(.51) except as noted. 2. Dimensions in inches over mm. 26Apr96 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- |
Price & Availability of PTM-84B-100B
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