AMD-762 Advanced Micro Devices, AMD-762 Datasheet - Page 21
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AMD-762
Manufacturer Part Number
AMD-762
Description
System Controller
Manufacturer
Advanced Micro Devices
Datasheet
1.AMD-762.pdf
(122 pages)
- Current page: 21 of 122
- Download datasheet (2Mb)
24416C—December 2001
Figure 3.
Figure 4.
Chapter 2
Many Segments
INP
INN
Push-Pull Transmission Line Example
Dummy Load with External Compensation Resistors
+
-
Part of Output Transistors
VTT
V
TT
Driver
/2
Th e dynamic compensa tion scheme implements a dummy
driver with characteristics exactly matching the normal driver.
An external precision resistor is attached, and the voltage of
the resulting voltage divider is compared to V
strength is then adjusted until a voltage near V
The output impedance then roughly matches the resistor value.
S e p a r a t e c o m p e n s a t i o n i s p e r f o r m e d for t h e N a n d P
transistors. The drive strength is changed in small steps when
no data is being driven. Refer to Figure 4.
INP
INN
Preliminary Information
Transmission Line
Functional Operation
VTT
V
TT
/2
Dummy Driver
AMD-762™ System Controller Data Sheet
+
-
Receiver
50 Ohms + 1%
TT
TT
/2 is achieved.
50 Ohms + 1%
/2. The drive
OUT
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