Intelligent Motion Systems Motion Detector operating instructions STEP/DIRECTION Timing

STEP/DIRECTION TIMING

		TDH
Direction
	TDSU
Step			TSL
		TSH

QUADRATURE TIMING

Direction Change	TCHL
Channel A
	TDC
Channel B
	TCHL

UP/DOWN TIMING

Step Up
Step Down	TSH	TSL	TDC			TDC
				TSH	TSL
		Figure 2.4.3: Clock Input Timing Characteristics
			Clock Input Timing
Symbol		Parameter			Type and Value
			Step/Direction		Step Up/Down	Quadrature	Units
TDSU	T Direction Set Up		50		—	—	nS min
TDH	T Direction Hold		100		—	—	nS min
TSH		T Step High	100		100	—	nS min
TSL		T Step Low	100		100	—	nS min
TDL	T Direction Change		—		200	200	nS min
TCHL	T Channel High/Low		—		—	400	nS min
FSMAX	F Step Maximum		5		5	—	MHz Max
FCHMAX	F Channel Maximum		—		—	1.25	MHz Max
FER	F Edge Rate		—		—	5	MHz Max

Table 2.4.1: Input Clocks Timing Table

Part 2: Interfacing and Configuring 21