ICS844246I Datasheet, PDF (8/16 Pages) Integrated Device Technology – FEMTOCLOCKS™ CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER

ICS844246I
FEMTOCLOCKS™ CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER PRELIMINARY
PARAMETER MEASUREMENT INFORMATION
3.3V±5%
POWER SUPPLY
+ Float GND –
V_DD,
V_{DDO VDDA}
LVDS
SCOPE
Qx
V
DD
V_DDA
V_DDO
nQx
LVDS
SCOPE
Qx
nQx
++ –
POWER
SUPPLY
Float GND
3.3V OUTPUT LOAD AC TEST CIRCUIT
nQx
Qx
nQy
Qy
t sk(o)
OUTPUT SKEW
Clock
20%
Outputs
80%
t_R
80%
t_F
V_{SW I N G}
20%
3.3V/2.5V OUTPUT LOAD AC TEST CIRCUIT
nQ0:nQ5
Q0:Q5
t _PW
t
PERIOD
odc = ^{t PW} x 100%
t _PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
V_DD
out
DC Input LVDS
out
➤
V_OS/Δ V_OS
OUTPUT RISE/FALL TIME
V_DD
DC Input LVDS
out
➤
100
V_OD/Δ V_OD
out
DIFFERENTIAL OUTPUT VOLTAGE SETUP
OFFSET VOLTAGE SETUP
IDT^™ / ICS^™ LVDS FREQUENCY SYNTHESIZER W/FANOUT BUFFER 8
ICS844246BGI REV. A NOVEMBER 14, 2007
Reference Document: JEDEC Publication 95, MO-153