ICS84021 Datasheet, PDF (7/14 Pages) Integrated Circuit Systems – 260MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS84021
260MHZ, CRYSTAL-TO-LVCMOS / LVTTL
FREQUENCY SYNTHESIZER
TABLE 4B. LVCMOS / LVTTL DC CHARACTERISTICS, V_DD=V_DDA=3.3V±5%,
V =3.3V±5%,
DDO
2.5V±5%
OR
1.8V±5%,
TA=0°C
TO
70°C
Symbol Parameter
Test Conditions Minimum Typical Maximum
VCO_SEL, XTAL_SEL, MR,
S_LOAD, nP_LOAD, S_DATA,
V_IH
Input
S_CLOCK, OE0, OE1,
High Voltage _{N0:N1, M0:M8}
2
V_DD + 0.3
TEST_CLK
VCO_SEL, XTAL_SEL, MR,
S_LOAD, nP_LOAD, S_DATA,
V
IL
Input
S_CLOCK, OE0, OE1,
Low Voltage _{N0:N1, M0:M8}
2
V_DD + 0.3
-0.3
0.8
TEST_CLK
-0.3
1.3
M0-M4, M6-M8, N0, N1, MR,
I_IH
Input
High Current
S_CLOCK, TEST_CLK,
S_DATA, S_LOAD, nP_LOAD
M5, OE0, OE1,
XTAL_SEL, VCO_SEL
V_DD = V_IN = 3.465V
V_DD = V_IN = 3.465V
150
5
M0-M4, M6-M8, N0, N1, MR,
S_CLOCK, TEST_CLK,
V_DD = 3.465V,
I_IL
Input
S_DATA, S_LOAD, nP_LOAD
Low Current _{M5, OE0, OE1,}
V_IN = 0V
V_DD = 3.465V,
XTAL_SEL, VCO_SEL
V_IN = 0V
-5
-150
V_OH
Output High Voltage; NOTE 1
V_OL
Output Low Voltage; NOTE 1
V_DDO = 3.3V ± 5%
2.6
V_DDO = 2.5V ± 5%
1.8
V_DDO = 1.8V ± 5%
V_DDO - 0.3
V_DDO = 3.3V ± 5%
0.5
V_DDO = 2.5V ± 5%
0.5
V_DDO = 1.8V ± 5%
0.4
NOTE
1:
Outputs
terminated
with
50Ω
to
V /2.
DDO
See
Parameter
Measurement
Section,
“Load
Test
Circuit
Diagrams”.
Units
V
V
V
V
µA
µA
µA
µA
V
V
V
V
V
V
TABLE 5. INPUT FREQUENCY CHARACTERISTICS, V_DD = V_DDA = V_DDO = 3.3V±5%, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
TEST_CLK; NOTE 1
14
40
MHz
f_IN
Input Frequency XTAL1, XTAL2; NOTE 1
S_CLOCK
14
40
MHz
50
MHz
NOTE 1: For the input crystal and TEST_CLK frequency range, the M value must be set for the VCO to operate within
the 620MHz to 780MHz range. Using the minimum input frequency of 14MHz, valid values of M are 45 ≤ M ≤ 55.
Using the maximum frequency of 40MHz, valid values of M are 16 ≤ M ≤ 19.
TABLE 6. CRYSTAL CHARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance (C_O)
84021AY
Test Conditions
Minimum Typical Maximum
Fundamental
14
40
50
7
Units
MHz
Ω
pF
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 7, 2003
7