843034-06 Datasheet, PDF (8/24 Pages) Integrated Device Technology – FemtoClock™ Multi-Rate 3.3V LVPECL Frequency Synthesizer

843034-06 DATA SHEET
TABLE 5C. DIFFERENTIAL DC CHARACTERISTICS, V = V = V = 3.3V±5%, V = 0V, TA = 0°C TO 75°C
CC
CCO_A
CCO_B
EE
Symbol Parameter
nCLK
I
Input High Current
IH
CLK
nCLK
I
Input Low Current
IL
CLK
V
Peak-to-Peak Input Voltage; NOTE 1
PP
V
Common Mode Input Voltage; NOTE 1, 2
CMR
NOTE 1: V should not be less than -0.3V.
IL
NOTE 2: Common mode voltage is defined as V .
IH
Test Conditions
V = V = 3.465V
IN
CC
V = V = 3.465V
IN
CC
V = 0V, V = 3.465V
IN
CC
V = 0V, V = 3.465V
IN
CC
Minimum
-150
-5
0.15
V + 0.5
EE
Typical
Maximum
150
150
1.3
V - 0.85
CC
Units
µA
µA
µA
µA
V
V
TABLE 5D. LVPECL DC CHARACTERISTICS, V = V = V = 3.3V±5%, V = 0V, TA = 0°C TO 75°C
CC
CCO_A
CCO_B
EE
Symbol Parameter
Test Conditions
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 50Ω to V V - 2V.
CCO_A, CCO_B
Minimum
V - 1.4
CCO
V - 2.0
CCO
0.6
Typical
Maximum
V - 0.9
CCO
V - 1.7
CCO
1.0
Units
V
V
V
TABLE 6. INPUT FREQUENCY CHARACTERISTICS, V = V = V = V
= 3.3V±5%, V = 0V, TA = 0°C TO 75°C
CC
CCO_A
CCO_B
CCO_REF
EE
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
XTAL_IN0/XTAL_OUT0,
XTAL_IN1/XTAL_OUT1
f
IN
Input Frequency _{CLK/nCLK, REF_CLK}
12
40
MHz
12
40
MHz
S_CLOCK
50
MHz
NOTE: For the input crystal, CLK/nCLK and REF_CLK frequency range, the M value must be set for the VCO to operate with-
in the 600MHz to 750MHz range. Using the minimum input frequency of 12MHz, valid values of M are 50 ≤ M ≤ 62. Using the
maximum frequency of 40MHz, valid values of M are 15 ≤ M ≤ 18.
TABLE 7. CRYSTAL CHARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Test Conditions
Minimum Typical Maximum
Fundamental
12
40
50
7
Units
MHz
Ω
pF
FemtoClock™ Multi-Rate 3.3V LVPECL Frequency Synthesizer
8
REVISION B 8/17/15