Version 4
SHEET 1 992 552
WIRE -176 -272 -256 -272
WIRE 208 -256 160 -256
WIRE 432 -256 368 -256
WIRE -256 -224 -256 -272
WIRE 432 -208 384 -208
WIRE -256 -112 -256 -144
WIRE 208 16 160 16
WIRE 432 16 368 16
WIRE 432 64 384 64
FLAG -256 -112 0
FLAG -176 -272 clk
FLAG 160 -256 clk
FLAG 432 -208 _duty50
FLAG 432 -256 duty50
FLAG 160 16 clk
FLAG 432 16 duty1
FLAG 432 64 _duty1
SYMBOL voltage -256 -240 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vclk
SYMATTR Value PULSE(0 1 0 .1n .1n 5.4n 10n)
SYMBOL counter1 288 -304 R0
SYMATTR InstName A1
SYMATTR Value2 cycles=16 Trise=1n
SYMBOL counter1 288 -32 R0
SYMATTR InstName A2
SYMATTR Value2 cycles=16 duty={1/16} trise=1n
TEXT -264 -640 Left 0 ;A-Counter\nKey paramters: cycles=16 duty=0.5 \nIf "duty" is omitted, the duty cycle will be 50%.\nThe width of the output pulses is \nwidth = round(cycles*duty)\n \nThe usual A-device parameters are also available.\nTrise, Vhigh, Vlow and Ref
TEXT -272 -320 Left 0 !.tran 0 1u 0 .1n
TEXT -272 -360 Left 0 !.options plotwinsize=0
TEXT 88 -368 Left 0 ;"duty" omitted -> 50% duty cycle -> width = 8 cycles
TEXT 152 -96 Left 0 ;"duty" cycle 1/16 -> width = 1 cycle