PTB-84A-20B overview

PTB-84A-20B is a component documented by Merrimac Industries, In. The PDF description identifies it as "8-BIT DIGITAL PHASE SHIFTER." This guide condenses the most useful engineering information from the available PDF so that designers and sourcing teams can identify the checks that still need confirmation in the original document.

Datasheet snapshot

  • Manufacturer: Merrimac Industries, In...
  • Part number: PTB-84A-20B
  • Category: IC
  • Datasheet length: 2 Pages

Specifications and operating details

The following points were extracted from the PDF text. Check the associated conditions, notes and limits in the complete document before using a value in a design.

  • guaranteed monotonic Impedance: 50 Ω nom.
  • per Bit Logic Sense: Positive Supply Power: +5 VDC@250 mA max.
  • Weight, nominal: 10 oz (285 g) Operating Temp: -- 55° to +85°C 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.
  • 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.
  • 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 Functional Schematic Diagram 24May96 NOTES: 1.
  • Tolerance on 3 place decimals ± .020(.51) except as noted.

Engineering review checklist

  • Confirm repetitive reverse voltage, average forward current, surge current and leakage at the intended temperature.
  • Check forward-voltage loss and reverse-recovery behavior at the actual current and switching frequency.
  • Review package thermal resistance, copper area, polarity marking and transient derating before layout release.

Always confirm values against the latest manufacturer-controlled datasheet, especially when qualifying a substitute or releasing a production BOM.

View the complete PDF and model record

Open the PTB-84A-20B datasheet and model details to review the complete PDF, document pages and available product information.

Source attribution

Adapted from the PDF associated with this DigiCamel model page.

Source model URL: https://www.digicamel.com/product.php?slug=ptb-84a-20b-merrimac-industries-in