MC12439 Datasheet, PDF (6/11 Pages) Motorola, Inc – HIGH FREQUENCY PLL CLOCK GENERATOR

MC12439
AC CHARACTERISTICS (TA = 0 to 70°C; VCC = 3.3 to 5.0V ±5%)
Symbol
Characteristic
Min
Max
Unit
Condition
FMAXI
Maximum Input Frequency
S_CLOCK
Xtal Oscillator
10
FREF_EXT
10
10
20
Note 5.
MHz
FMAXO
Maximum Output Frequency
VCO (Internal)
400
FOUT
50
900
MHz
800
tLOCK
Maximum PLL Lock Time
1
10
ms
tjitter
Cycle–to–Cycle Jitter (Peak–to–Peak) (Note 6.)
±25
ps N = 2,4,8; Note 7.
±65
N = 1; Note 7.
ts
Setup Time
S_DATA to S_CLOCK
20
ns
S_CLOCK to S_LOAD
20
M, N to P_LOAD
20
th
Hold Time
S_DATA to S_CLOCK
20
ns
M, N to P_LOAD
20
tpwMIN
Minimum Pulse Width
S_LOAD
50
P_LOAD
50
ns Note 7.
tr, tf
Output Rise/Fall Time
300
800
ps Note 7.
5. Maximum frequency on FREF_EXT is a function of the internal M counter limitations. The phase detector can handle up to 100MHz on the input,
but the M counter must remain in the valid range of 25 ≤ M ≤ 50. See the programming section in this data sheet for more details.
6. See Applications Information section for additional information.
7. 50Ω to VCC – 2.0V pulldown.
MOTOROLA
6
TIMING SOLUTIONS
BR1333 — Rev 6