Fluke 5700A Series User Manual

2-1
Chapter 2
Theory of Operation
Title Page
2-1.
Introduction........................................................................................... 2-5
2-2.
Calibrator Overview ............................................................................. 2-5
2-3. Internal References........................................................................... 2-5
2-4. Hybrid Reference Amplifiers....................................................... 2-5
2-5. Fluke Thermal Sensor (FTS)........................................................ 2-5
2-6. Digital-to-Analog Converter (DAC). ........................................... 2-6
2-7. Digital Section Overview...................................................................... 2-6
2-8. Analog Section Overview..................................................................... 2-6
2-9. Functional Description Presented by Output Function......................... 2-8
2-10. DC Voltage Functional Description ................................................. 2-8
2-11. AC Voltage Functional Description ................................................. 2-11
2-12. Wideband AC V Functional Description (Option -03) .................... 2-12
2-13. DC Current Functional Description.................................................. 2-12
2-14. AC Current Functional Description.................................................. 2-12
2-15. Ohms Functional Description........................................................... 2-13
2-16. System Interconnect Detailed Circuit Description................................ 2-13
2-17. Digital Motherboard Assembly (A4)................................................ 2-13
2-18. Transformer Assembly (A22)........................................................... 2-14
2-19. Analog Motherboard Assembly (A3)............................................... 2-14
2-20. Front/Rear Binding Posts ................................................................. 2-18
2-21. Rear Panel Assembly (A21) ............................................................. 2-18
2-22. Filter PA Supply Assembly (A18) ................................................... 2-18
2-23. Digital Section Detailed Circuit Description ........................................ 2-18
2-24. Digital Power Supply Assembly (A19)............................................ 2-18
2-25. +5V Power Supply ....................................................................... 2-19
2-26. ±12V Power Supplies................................................................... 2-19
2-27. +35V Power Supply ..................................................................... 2-19
2-28. +75V Power Supply ..................................................................... 2-20
2-29. +35V and +75V Shut-Down Circuit ............................................ 2-20
2-30. CPU (Central Processing Unit) Assembly (A20) ............................. 2-21
2-31. Power-Up and Reset Circuit......................................................... 2-21
2-32. Clock Generation ......................................................................... 2-21
2-33. Watchdog Timer........................................................................... 2-24
2-34. Address Decoding and DTACK (Data Acknowledge) ................ 2-24
2-35. Interrupt Controller ...................................................................... 2-25

Fluke 5700A Series Specifications

General

Type	Multifunction Calibrator
Operating Temperature	0°C to 50°C
Storage Temperature	-40°C to 70°C
Humidity	10% to 90% non-condensing
Frequency Range	10 Hz to 1 MHz
Accuracy	Varies by function and range. See manufacturer's specifications for details.
Output Stability	Varies by function and range. See manufacturer's specifications for details.
Power Requirements	50 Hz to 60 Hz