MAX3674 Ver la hoja de datos (PDF) - Microsemi Corporation
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MAX3674 Datasheet PDF : 20 Pages
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High-Performance, Dual-Output,
Network Clock Synthesizer
AC ELECTRICAL CHARACTERISTICS
(VCC = VCC_PLL = +3.3V ±5%, TA = -40°C to +85°C, NB = 1 (low), P = 4 (high), BYPASS = high, TEST_EN = low. Typical values are
at VCC = VCC_PLL = +3.3V, TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
EXTERNAL REFERENCE CLOCK INPUT (REF_CLK)
Input Frequency
fREF_CLK
Input Rise/Fall Time
20% to 80%
Input Duty Cycle
CRYSTAL OSCILLATOR (XTAL1, XTAL2)
Crystal Input Frequency
fXTAL
CLOCK OUTPUT PERFORMANCE (Qx, Qx) (Note 3)
VCO Frequency
fVCO (Note 5)
NA = 2
NA = 4
Output Frequency (Note 6)
fOUT
NA = 8
NA = 16
NA = 32
NA = 64
Output Clock Duty Cycle
fQA = fQB 500MHz
DC
fQA = fQB 680MHz
fQA = fQB 1360MHz
Output-to-Output Skew
NB = 1 (fQA = fQB) (Note 7)
NB = 2 (fQA = 2 fQB), fQA 500MHz
Output Rise/Fall Time
Output Peak-to-Peak Voltage
(Single-Ended) (Note 7)
Output Enable Time
Output Disable Time
tR, tF
tEN
tDIS
20% to 80%
fOUT 1000MHz
1000MHz < fOUT 1360MHz
Figures 3 and 4, tQx = output period
Figures 3 and 4, tQx = output period
NA = 2
NA = 4
Cycle-to-Cycle Jitter (Notes 7, 8)
JCC
NA = 8, 16, 32, 64
NA = 4, NB = 1
NA = 4, NB = 2 (Note 9)
NA = 2
NA = 4
Period Jitter (Notes 7, 8)
JPER NA = 8, 16, 32, 64
NA = 4, NB = 1
NA = 4, NB = 2 (Note 9)
15
16
20
MHz
5
ns
30
70
%
15
16
20
MHz
1360
680
340
170
85.0
42.5
21.25
46.0
44.8
42.0
45
0.49
0.32
50
50
50
10
2 tQx
2 tQx
13
35
7
18
2720
1360
680
340
170
85.0
42.50
54.0
55.2
56.8
38
340
1.0
1.0
3.7
6.4
8.5
2.5
3.7
4.9
MHz
MHz
%
ps
ps
VP-P
psRMS
(1)
psP-P
psRMS
(1)
psP-P
Relative Sideband Spur Power
Due to Power-Supply Noise
(Note 10)
-38
dBc
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