CD74ACT297_14 Datasheet, PDF (10/18 Pages) Texas Instruments – DIGITAL PHASE-LOCKED LOOP

CD74ACT297
DIGITAL PHASE-LOCKED LOOP
SCHS297D – AUGUST 1998 – REVISED JUNE 2002
switching characteristics over recommended operating free-air temperature range, C_L = 50 pF
(unless otherwise noted)
PARAMETER
fmax
tPLH
tPHL
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
FROM
(INPUT)
K CLK
I/D CLK
I/D CLK
φA2
φA1
φB
φB
TO
(OUTPUT)
I/D OUT
I/D OUT
ECPD OUT
XORPD OUT
XORPD OUT
ECPD OUT
TA = 25°C
MIN TYP MAX
55
40
19
19
24
17
17
17
17
24
MIN MAX UNIT
45
MHz
35
24
ns
24
30 ns
22
ns
22
22
ns
22
30 ns
10
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