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| PTB & PTM-84A Series 8-BIT DIGITAL PHASE SHIFTER 20 to 100 MHz / 1.4 Phase Resol. / Monotonic / Broadband, Switched Cable Design / BNC or SMA PRINCIPAL SPECIFICATIONS Calibration Frequency, fc, MHz 20 to 100 Usable Bandwidth fc 40% SMA Model Number PTM-84A-**B BNC Model Number PTB-84A-**B GENERAL SPECIFICATIONS Phase Shift Range: Least Significant Bit: Most Significant Bit : Accuracy at, fc: 0 to 360 nom. @ fc 1.4 180 1/2 of LSB typ. guaranteed monotonic For complete model number replace ** with desired calibration frequency, fc in MHz. General Notes: 1. PTB- & PTM-84A series phase shifters provide up to 360 of phase shift at a selected calibration frequency in 8 binary increments (255 steps) resulting in 1.4 resolution. Each step is generated with different cable lengths switched with PIN diodes. 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). 2. Phase shifters based on cable switching are inherently stable and well matched. Phase shift can be set and held very closely in binary increments from the LSB to the MSB (Most Significant Bit). 3. This series can be calibrated up to 100 MHz and used to 180 MHz while the related PTM-84B series extends coverage to 500 MHz. Impedance: 50 nom. VSWR: 1.3:1 max. 2.5 dB nom., 4 dB max. Insertion Loss, IL: IL, Variation vs. Cont: 0.2 dB @ mid band Max. Input Power: +10 dBm Control Input: 8 Bit TTL @ 2 loads max. per Bit Logic Sense: Supply Power: Settling Time: Weight, nominal: Operating Temp: Positive 4 s max. 10 oz (285 g) -- 55 to +85C +5 VDC@250 mA max. Functional Schematic Diagram 24May96 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 5750531 PTB & PTM-84A Series 8-BIT DIGITAL PHASE SHIFTER 20 to 100 MHz / 1.4 Phase Resol. / Monotonic / Broadband, Switched Cable Design / BNC or SMA Package Outline NOTES: 1. Tolerance on 3 place decimals .020(.51) except as noted. 2. Dimensions in inches over mm. Bit LSB 1 2 3 4 5 6 7 8 MSB Phase Increment 1.40 2.81 5.62 11.25 22.5 45.0 90.0 180.0 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-84A-100B
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