CY28404OCT SPECTRALINEAR [SpectraLinear Inc], CY28404OCT Datasheet - Page 18

• Manufacturer Part Number: CY28404OCT
• Description: CK409-Compliant Clock Synthesizer
• Manufacturer: SPECTRALINEAR [SpectraLinear Inc]

Rev 1.0, November 22, 2006
Test and Measurement Set-up
For Differential CPU and SRC Output Signals
The following diagram shows lumped test load configurations
for the differential Host Clock Outputs.
Table 11.CPU Clock Current Select Function
Board Target Trace/Term Z
Figure 9. Lumped Load For Single-Ended Output Signals (for AC Parameters Measurement)
50 Ohms
2 .4 V
1 .5 V
0 .4 V
IR E F
C P U C
C P U T
T r
-
3 .3 V
3 .3 V s ig n a l s
Figure 8. 0.7V Load Configuration
Reference R, I
R
tD C
REF
T f
= 475 1%, I
T
T
P C B
P C B
REF
0 V
REF
– V
DD
= 2.32mA
(3*R
-
O u tp u t u n d e r T e s t
2 p F
2 p F
REF
M e a s u re m e n t
M e a s u re m e n t
)
P o in t
P o in t
P r o b e
Output Current
L o a d C a p
I
OH
= 6*I
REF
CY28404
Page 18 of 19
0.7V @ 50
V
OH
@ Z