CY28RS480
Test and Measurement Set-up
For PCI Single-ended Signals and Reference
The following diagram shows the test load configurations for
the single-ended PCI, USB, and REF output signals.
Measurement
Point
ꢃꢄ:
ꢃꢄ:
ꢁꢂ:
5pF
PCI/
USB
Measurement
Point
ꢁꢂ:
5pF
Measurement
Point
5pF
ꢃꢄ:
ꢃꢄ:
ꢃꢄ:
ꢂꢂ:
Measurement
Point
5pF
ꢂꢂ:
REF
Measurement
Point
ꢂꢂ:
5pF
Figure 4. Single-ended Load Configuration
For Differential CPU and SRC Output Signals
The following diagram shows the test load configuration for the
differential SRC outputs.
M e a s u re m e n t
P o in t
ꢁ ꢄ ꢄ ꢀ:
ꢅ ꢅ :
S R C T
ꢆ ꢇ ꢈꢇ :
2 p F
M e a s u re m e n t
P o in t
2 p F
ꢁ ꢄ ꢄ ꢀ:
ꢅ ꢅ :
S R C C
IR E F
ꢆ ꢇ ꢈꢇ :
ꢆ ꢉ ꢊ :
Figure 5. 0.7V Load Configuration
3 .3 V s ig n a ls
T D C
-
-
3 .3 V
2 .4 V
1 .5 V
0 .4 V
0 V
T R
T F
Figure 6. Single-ended Output Signals (for AC Parameters Measurement)
Rev 1.0,November 22, 2006
Page 12 of 14
SPECTRALINEAR [ SPECTRALINEAR INC ]
