ICS84021 Datasheet, PDF (10/14 Pages) Integrated Circuit Systems – 260MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS84021
260MHZ, CRYSTAL-TO-LVCMOS / LVTTL
FREQUENCY SYNTHESIZER
PARAMETER MEASUREMENT INFORMATION
V_DD, V_DDA, V_DDO = 1.65V±5%
LVCMOS
2.05V±5% 1.25V±5%
SCOPE
Qx
V_DD^,
V_DDA
V_DDO
LVCMOS
SCOPE
Qx
GND = -1.65V±5%
3.3V OUTPUT LOAD AC TEST CIRCUIT
2.4V±5% 0.9V±5%
V_DD^,
V_DDA
V_DDO
LVCMOS
SCOPE
Qx
GND = -0.9V±5%
3.3V/1.8V OUTPUT LOAD AC TEST CIRCUIT
GND = -1.25V±5%
3.3V/2.5V OUTPUT LOAD AC TEST CIRCUIT
V_OH
V_REF
1σ contains 68.26% of all measurements
V_OL
2σ contains 95.4% of all measurements
3σ contains 99.73% of all measurements
4σ contains 99.99366% of all measurements
6σ contains (100-1.973x10^-7)% of all measurements
Reference Point
(Trigger Edge)
Histogram
Mean Period
(First edge after trigger)
PERIOD JITTER
V
DDO
Qx
2
V
DDO
Qy
2
t sk(o)
20%
Clock
Outputs
80%
t_R
OUTPUT SKEW
Q0, Q1
V
DDO
2
Pulse Width
t
PERIOD
OUTPUT RISE/FALL TIME
odc = ^{t PW}
t _PERIOD
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
84021AY
www.icst.com/products/hiperclocks.html
10
80%
t_F
20%
REV. A NOVEMBER 7, 2003