ICS84330 查看數據表（PDF） - Integrated Circuit Systems
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ICS84330
Integrated Circuit Systems
ICS84330 Datasheet PDF : 19 Pages
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Integrated
Circuit
Systems, Inc.
TABLE 5. CRYSTAL CHARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
ICS84330
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
Test Conditions
Minimum Typical Maximum
Fundamental
10
25
70
7
Units
MHz
Ω
pF
TABLE 6. INPUT FREQUENCY CHARACTERISTICS, VCC = VCCA = 3.3V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
XTAL; NOTE 1
10
25
MHz
fIN
Input Frequency S_CLOCK
FREF_EXT; NOTE 2
50
MHz
10
MHz
NOTE 1: For the crystal frequency range the M value must be set to achieve the minimum or maximum VCO frequency
range of 250MHz to 700MHz. Using the minimum frequency of 10MHz, valid values of M are 200 ≤ M ≤ 511.
Using the maximum frequency of 25MHz, valid values of M are 80 ≤ M ≤ 224.
NOTE 2: Maximum frequency on FREF_EXT is dependent on the internal M counter limitations. See Application
Information Section for recommendations on optimizing the performance using the FREF_EXT input.
TABLE
7.
AC
CHARACTERISTICS,
V
CC
=
V
CCA
=
3.3V±5%,
TA
=
0°C
TO
70°C
Symbol Parameter
Test Conditions
FOUT
Output Frequency
tjit(per) Period Jitter, RMS; NOTE 1, 2
tjit(cc) Cycle-to-Cycle Jitter; NOTE 1, 2
tR / tF
Output Rise/Fall Time
S_DATA to S_CLOCK
20% to 80%
tS
Setup Time S_CLOCK to S_LOAD
M, N to nP_LOAD
S_DATA to S_CLOCK
tH
Hold Time
M, N to nP_LOAD
tL
PLL Lock Time
N≠1
odc
Output Duty Cycle
N = 1, fOUT ≤ 250MHz
N = 1,
250MHz < fOUT ≤ 500MHz
See Parameter Measurement Information section.
Characterized using a XTAL input.
NOTE 1: This parameter is defined in accordance with JEDEC Standard 65
NOTE 2: See Applications section.
Minimum
200
20
20
20
20
20
45
45
Typical
Maximum
700
5
40
600
10
55
55
Units
MHz
ps
ps
ps
ns
ns
ns
ns
ns
ms
%
%
40
60
%
84330BV
www.icst.com/products/hiperclocks.html
6
REV. B JULY 26, 2004
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