ICS8440258-46 Datasheet, PDF (6/16 Pages) Integrated Device Technology – FEMTOCLOCK™ CRYSTAL/LVCMOS-TOLVDS/LVCMOS FREQUENCY SYNTHESIZER

ICS8440258-46
FEMTOCLOCK™ CRYSTAL/LVCMOS-TO-LVDS/ LVCMOS FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
PRELIMINARY
2.5V±5%
POWER SUPPLY
+ Float GND –
V_DD,
V_DDO1, V_DDA
V_DDO2
LVDS
SCOPE
Qx
nQx
1.25V±5%
1.25V±5%
V_DD,
V_DDO1,
V_DDO2
LVCMOS
V_DDA
GND
SCOPE
Qx
2.5V LVDS OUTPUT LOAD AC TEST CIRCUIT
-1.25V±5%
2.5V LVCMOS OUTPUT LOAD AC TEST CIRCUIT
nQx
Qx
nQy
Qy
t sk(o)
V
DDO
Qx
2
V
DDO
Qy
2
t sk(o)
LVDS OUTPUT SKEW
LVCMOS OUTPUT SKEW
Clock
20%
Outputs
80%
t_R
80%
t_F
V_OD
20%
20%
Clock
Outputs
80%
t_R
80%
t_F
20%
LVDS OUTPUT RISE/FALL TIME
IDT^™ / ICS^™ LVDS/LVCMOS FREQUENCY SYNTHESIZER
LVCMOS OUTPUT RISE/FALL TIME
6
ICS8440258AK-46 REV B JANUARY 15, 2008