ICS84330-03 Datasheet, PDF (9/20 Pages) Integrated Circuit Systems – 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
TABLE 6. CRYSTAL CHARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
ICS84330-03
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
Test Conditions
Minimum Typical Maximum
Fundamental
10
25
50
7
1
Units
MHz
Ω
pF
mW
TABLE 7. INPUT FREQUENCY CHARACTERISTICS, V_CC = V_CCA = 3.3V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
XTAL; NOTE 1
10
25
MHz
f_IN
Input Frequency SCL
FREF_EXT; NOTE 2
10
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 8. AC CHARACTERISTICS, V_CC = V_CCA = 3.3V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum
F_OUT
Output Frequency
tjit(per) Period Jitter, RMS; NOTE 1, 2
700
3
9
tjit(cc) Cycle-to-Cycle Jitter; NOTE 1, 2
20
40
tsk(o) Output Skew; NOTE 3
80
t_R / t_F
Output Rise/Fall Time
20% to 80%
200
900
SDA to SCL
20
t_S
Setup Time
M, N to nP_LOAD
20
SDA to SCL
20
t_H
Hold Time
M, N to nP_LOAD
20
F_M
SSC Modulation Frequency;
NOTE 4
XTAL_IN = 16.6667MHz
30
32
33.33
SSC_red
t_L
odc
Spectral Reduction; NOTE 4
PLL Lock Time
Output Duty Cycle
N ≠ ÷1
-7
-10
10
48
52
t_PW
Output Pulse Width
N = ÷1
t_PERIOD/2 - 275 t_PERIOD/2 t_PERIOD/2 + 275
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.
NOTE 3: Defined as skew between outputs at the same supply voltage and with equal load conditions.
Measured from the output differential cross points.
NOTE 4: Spread Spectrum clocking enabled.
Units
MHz
ps
ps
ps
ps
ns
ns
ns
ns
kHz
dB
ms
%
ps
84330AY-03
www.icst.com/products/hiperclocks.html
9
REV. A FEBRUARY 2, 2006