843204I-01 Datasheet, PDF (4/14 Pages) Integrated Device Technology – FemtoClock® Crystal-to-3.3V LVPECL Frequency Synthesizer

843204I-01 DATA SHEET
TABLE 3C. DIFFERENTIAL DC CHARACTERISTICS, V = V = V = 3.3V±10%, V = 0V, TA = -40°C TO 85°C
CC
CCO_A
CCO_B
EE
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
I
IH
Input High Current
CLK1,
nCLK1
V = V = 3.63V
IN
CC
150
µA
nCLK1
I
Input Low Current
IL
CLK1
V
Peak-to-Peak Input Voltage; NOTE 1
PP
V
CMR
Common Mode Input Voltage;
NOTE 1, 2
V = 0V, V = 3.63V
IN
CC
V = 0V, V = 3.63V
IN
CC
-150
-5
0.15
V + 0.5
EE
µA
µA
1.3
V
V - 0.85 V
CC
NOTE 1: V should not be less than -0.3V
IL
NOTE 2: Common mode voltage is defined as V .
IH
TABLE 3D. LVPECL DC CHARACTERISTICS, V = V = V = 3.3V±10%, V = 0V, TA = -40°C TO 85°C
CC
CCO_A
CCO_B
EE
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
V
Output High Voltage; NOTE 1
OH
V
Output Low Voltage; NOTE 1
OL
V
SWING
Peak-to-Peak Output Voltage Swing
NOTE 1: Outputs terminated with 50 to V - 2V.
Ω
CCO
V - 1.4
CCO
V - 2.0
CCO
0.6
V - 0.9 V
CCO
V - 1.7 V
CCO
1.0
V
TABLE 4. CRYSTAL CHARACTERISTICS
Parameter
Test Conditions
Mode of Oscillation
Frequency
XTAL0
XTAL1
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
NOTE: Characterized using an 18pF parallel resonant crystal.
Minimum Typical Maximum
Fundamental
25
19.44
50
7
1
Units
MHz
MHz
Ω
pF
mW
TABLE 5. AC CHARACTERISTICS, V = V = V = 3.3V±10%, V = 0V, TA = -40°C TO 85°C
CC
CCO_A
CCO_B
EE
Symbol Parameter
Test Conditions
Minimum Typical Maximum
f
Output Frequency
OUT
SELB0 = 1; OEB0 = 1
SELA0 = 0; OEA0 = 1
155.52
156.25
tsk(b) Bank Skew; NOTE 1, 2
60
tjit(Ø)
RMS Phase Jitter (Random);
NOTE 3
155.52MHz, (12kHz - 1.3MHz)
156.25MHz, (1.875MHz - 20MHz)
0.6
0.7
t /t
RF
odc
Output Rise/Fall Time
Output Duty Cycle
20% to 80%
250
600
47
53
NOTE 1: Defined as skew within a bank of outputs at the same supply voltags and with equal load conditions.
NOTE 2: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 3: See Phase Noise plot.
Units
MHz
MHz
ps
ps
ps
ps
%
FEMTOCLOCKS™ CRYSTAL-TO-
4
3.3V LVPECL FREQUENCY SYNTHESIZER
REVISION A 11/5/15