ICS843034 Datasheet, PDF (9/23 Pages) Integrated Circuit Systems – MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843034
FEMTOCLOCKS™
MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER
TABLE 4C. DIFFERENTIAL DC CHARACTERISTICS, V_CC = V_CCA = 3.3V±5%, V_{CCO_A} = V_{CCO_B} = 3.3V±5% OR 2.5V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical
nCLK
I_IH
Input High Current
CLK
V_IN = V_CC = 3.465V
V_IN = V_CC = 3.465V
nCLK
I_IL
Input Low Current
CLK
V_IN = 0V, V_CC = 3.465V
V_IN = 0V, V_CC = 3.465V
-150
-5
V_PP
Peak-to-Peak Input Voltage
0.15
V_CMR
Common Mode Input Voltage; NOTE 1, 2
V_EE + 0.5
NOTE 1: For single ended applications, the maximum input voltage for CLK, nCLK is V_CC + 0.3V.
NOTE 2: Common mode voltage is defined as V_IH.
Maximum
150
150
1.3
V_CC - 0.85
Units
µA
µA
µA
µA
V
V
TABLE 4D. LVPECL DC CHARACTERISTICS, V_CC = V_CCA = 3.3V±5%, V_{CCO_A} = V_{CCO_B} = 3.3V±5% OR 2.5V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
V_OH
Output High Voltage; NOTE 1
V_OL
Output Low Voltage; NOTE 1
V_SWING Peak-to-Peak Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to V_{CCO_A,} V_{CCO_B} - 2V.
Minimum
V_CCO - 1.4
V_CCO - 2.0
0.6
Typical
Maximum
V_CCO - 0.9
V_CCO - 1.7
1.0
Units
V
V
V
TABLE 5. INPUT FREQUENCY CHARACTERISTICS, V_CC = V_CCA = 3.3V±5%, V_{CCO_A} = V_{CCO_B} = 3.3V±5% OR 2.5V±5%, TA = 0°C TO 70°C
Symbol
f
IN
Parameter
Input Frequency
XTAL_IN0/XTAL_OUT0,
XTAL_IN1/XTAL_OUT1
CLK/nCLK, TEST_CLK
Test Conditions
Minimum Typical Maximum Units
12
40
MHz
12
TBD
MHz
S_CLOCK
50
MHz
TEST_CLK
t_R/t_F
Input Rise/Fall
Time
S_LOAD, S_DATA,
S_CLOCK
TBD
ns
TBD
ns
NOTE: For the input crystal, CLK/nCLK and TEST_CLK frequency range, the M value must be set for the VCO to operate
within the 560MHz to 750MHz range. Using the minimum input frequency of 12MHz, valid values of M are 47 ≤ M ≤ 62.
Using the maximum frequency of 40MHz, valid values of M are 14 ≤ M ≤ 18.
TABLE 6. CRYSTAL CHARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
Test Conditions
Minimum Typical Maximum
Fundamental
12
40
50
7
1
Units
MHz
Ω
pF
mW
843034AY
www.icst.com/products/hiperclocks.html
9
REV. A JULY 25, 2005