cy28rs680 SpectraLinear Inc, cy28rs680 Datasheet - Page 19

• Manufacturer Part Number: cy28rs680
• Description: Clock Generator For Ati Rs5xx/6xx Chipsets
• Manufacturer: SpectraLinear Inc

Rev 1.0, March 28, 2007
For SRC/ATIG Output Signals
The following diagram shows the test load configuration for the
differential SRC/ATIG outputs.
15 ohms
15 ohms
C P U C
C P U C
C P U T
C P U T
O u t+
O u t+
O u t+
O u t+
O u t
O u t
O u t
O u t
-
-
-
-
L
L
L
L
1
1
1
1
Figure 8. CPU Output Load Configuration
Figure 7. 0.7V Load Configuration
3 3 Ω
3 3 Ω
3 3 Ω
3 3 Ω
3900pF
3900pF
L
L
L
L
169 ohms
2
2
2
2
125 ohms
L 1 = 0 .5 ”, L 2 = 1 0 ”
L 1 = 0 .5 ”, L 2 = 1 0 ”
Vbias=1.25V
2 p F
2 p F
2 p F
2 p F
5pF
M e a s u r e m e n t
M e a s u r e m e n t
M e a s u r e m e n t
M e a s u r e m e n t
P o in t
P o in t
P o in t
P o in t
5pF
125 ohms
CY28RS680
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