JT 5705/FXT Carriers

The use of JTAG/Boundary-scan combined with a number of mixed signal IO channels brings a new dimension to the bench-top ATE market. The JT 5705/FXT is a highly compact (less than 10cm x10cm) multifunction USB-powered instrument in its own right and offers two full JTAG TAPs (Test Access Ports) and 64 IO channels with a combination of Digital, Analog and Frequency measurement capabilities. The matching JT 2702/xx range of carrier boards have been designed to allow seamless integration of this powerful capability into an array of popular bench fixtures.

The already impressive specification of the JT 5705/FXT is enhanced by the addition of multiplexing circuitry on the carriers to increases the effective channel count further.

Advanced users can also take advantage of the FPGA technology used by the JT 5705/FXT to create custom applications/instruments, controlled through JTAG’s unique CoreCommander FPGA software.


  • Support for ATX, D&D, ECT, Ingun, MG Products, and others
  • JT 2702/xx (choose your connection method)
  • JT 5705/FXT (2 TAPs + 64 multifunctional I/Os)
  • JT 5112/FXT (64 multifunctional I/Os)
  • Build a low-cost multi-function ATE
  • Tests JTAG and non-JTAG compliant designs
  • Engineered solutions for popular fixture types
  • Generic solution available foy your current fixture.
  • JT 2702/BO – generic break-out board for one JT 5705/FXT
  • JT 2702/IB – interposer/break-out board for Ingun, ECT (and similar) fixtures, supports one JT 5705/FXT. Connection to board adapter via two 12 x 12 matrix connectors

JT 5705/FXT

  • Two 1149.x compliant Test Access Ports
  • TCK up to 15 MHz
  • 64 I/O channels
  • 8 Analog Input or Output channels (taken from channels 57- 64)
  • Generated value has an accuracy of +/- 0.45%
  • Measured value has an accuracy of +/- (0.4% + 100mV)
  • Frequency measurements, range 0- 200 MHz (channels 33-48)
  • Pulse width counter, range 4 – 8192 nS (channel 35 only)
  • Frequency generator, range 0 – 62.5 MHz (channel 33 only)

JT 2702/IB

  • 1 site for JT5705/FXT or JT5112/FXT,
  • Optional signal multiplexors for increased channel count
  • Designed for ‘Pylon’ style connectors

JT 2702/BO

  • 1 site for JT 5705/FXT or JT 5112/FXT
  • Generic solution for all fixture systems using IDC connectors

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