Version 4
SHEET 1 2740 696
WIRE 640 -864 640 -896
WIRE 528 -800 528 -832
WIRE 640 -720 640 -784
WIRE 1408 -720 1392 -720
WIRE 1648 -720 1632 -720
WIRE 1712 -720 1696 -720
WIRE 1392 -688 1392 -720
WIRE 1392 -688 1328 -688
WIRE 1408 -688 1392 -688
WIRE 1712 -688 1632 -688
WIRE 528 -656 528 -720
WIRE 1056 -656 960 -656
WIRE 1120 -656 1104 -656
WIRE 1408 -656 1328 -656
WIRE 1712 -656 1632 -656
WIRE 1120 -624 960 -624
WIRE 1408 -624 1328 -624
WIRE 1712 -624 1632 -624
WIRE 1120 -592 960 -592
WIRE 1408 -592 1328 -592
WIRE 1712 -592 1632 -592
WIRE 1120 -560 960 -560
WIRE 1408 -560 1328 -560
WIRE 1712 -560 1632 -560
WIRE 528 -544 464 -544
WIRE 768 -544 528 -544
WIRE 1952 -544 1904 -544
WIRE 1120 -528 960 -528
WIRE 1408 -528 1328 -528
WIRE 1712 -528 1632 -528
WIRE 1120 -496 960 -496
WIRE 1408 -496 1328 -496
WIRE 1712 -496 1632 -496
WIRE 464 -480 464 -544
WIRE 1120 -464 960 -464
WIRE 1408 -464 1328 -464
WIRE 1712 -464 1632 -464
WIRE 1120 -432 960 -432
WIRE 1408 -432 1328 -432
WIRE 1712 -432 1632 -432
WIRE 1408 -400 1392 -400
WIRE 816 -368 816 -384
WIRE 848 -368 848 -384
WIRE 1408 -368 1392 -368
WIRE 464 -336 464 -400
FLAG 464 -336 0
FLAG 528 -544 Vin
FLAG 640 -720 0
FLAG 640 -896 clock
FLAG 528 -656 0
FLAG 528 -832 VDD
FLAG 1952 -544 Vout
FLAG 1808 -768 VDD
FLAG 1824 -320 0
FLAG 1520 -784 VDD
FLAG 864 -704 VDD
FLAG 880 -384 0
FLAG 816 -368 Clock
FLAG 848 -368 VDD
FLAG 1520 -320 Clock
FLAG 1792 -320 VDD
FLAG 1216 -352 Clock
FLAG 1216 -752 VDD
FLAG 1072 -672 VDD
FLAG 1392 -400 0
FLAG 1392 -368 0
FLAG 1664 -736 VDD
FLAG 1712 -368 0
FLAG 1712 -400 0
SYMBOL voltage 464 -496 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vin
SYMATTR Value SINE(0.5 0.4 25MEG 8n)
SYMBOL voltage 640 -880 R0
WINDOW 0 36 42 Left 0
WINDOW 3 35 69 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vclock
SYMATTR Value PULSE(0 1 0 100p 100p 4.9n 10n)
SYMBOL voltage 528 -816 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VDD
SYMATTR Value 1.0
SYMBOL Ideal_8_bit_ADC 784 -400 R0
SYMATTR InstName U1
SYMBOL Ideal_12_bit_DAC 1728 -336 R0
SYMATTR InstName X2
SYMBOL 8_bit_comb_K_8 1152 -384 R0
SYMATTR InstName X3
SYMBOL fsby4_resonator_12bit 1440 -352 R0
SYMATTR InstName X5
SYMBOL inverter 1056 -656 R0
SYMATTR InstName X1
SYMBOL inverter 1648 -720 R0
SYMATTR InstName X4
TEXT 1040 -264 Left 0 !.tran 0 250n 100n .1n uic
TEXT 472 -288 Left 0 ;At fs/4, or 25MHz here, the input passes\nto the output without attenuation (Fig. 4.21)\nhowever, as we move away from fs/4 the\noutput amplitude drops (at 12.5 MHz it's 0).
TEXT 1016 -232 Left 0 !.options plotwinsize=0
TEXT 1320 -224 Left 0 ;As seen in Fig. 4.21 the output goes up by 4 (2 bits)
TEXT 1304 -704 Left 0 ;9-bits
TEXT 1352 -744 Left 0 ;10-bits
TEXT 968 -680 Left 0 ;8-bits