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參數(shù)資料
| 型號(hào)： | Am7968-175DMC |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| 中文描述： | TAXIchip集成電路（透明異步Xmitter，接收器接口） |
| 文件頁(yè)數(shù)： | 76/127頁(yè) |
| 文件大?。?/td> | 730K |
| 代理商： | AM7968-175DMC |
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AMD
72
TAXIchip Integrated Circuits Technical Manual
Figure 6-1
T ransmitter and Rec eiver Dec oupling Layouts
V
CC1
(TTL)
V
CC2
(ECL)
GND1
V
CC3
(CML)
GND2
(CML)
Am7968
A
B
C2
C1
C3
6
5
22
C1
C3
7
21
C1
C3
Leads must
be very short
(less than 1/4
″
)
C1 = 0.1
μ
F (ceramic)
C2 = 1
μ
F Tantalum
C3 = 0.01
μ
F (ceramic)
To further decouple the TAXIchip set, it is highly recommended that ferrite beads be inserted
at locations A, B and D.
V
CC
Plane
GND1
V
CC2
(CML)
GND2
Am7969
D
C2
7
20
8
21
C1
C3
Transmitter
Receiver
C3
12330E-19
C1
V
CC
Plane
V
CC1
(TTL)
Figure 6-3
J ogs and Glitc hes in the Cloc k Line
Normal Overshoot < 0.5 V
CLK or X1
Jog or Glitch
Normal Undershoot < 0.5 V
12330E-20
3. Keep all bypass capacitors as close to the power pins of the device as possible. Lead
lengths should be minimized.
4. Use high quality RF grade capacitors such as type COG or X7R. Use of Z5U capaci-
tors is not recommended.
5. Ensure that the power supply does not have more that 100 mV of peak-to-peak noise
at any of the TAXI Vcc pins. Make this check while the TAXls are sending random
data.
6. While CLK can drive four X1 inputs or several TTL loads, the highest performance
can be achieved by reducing the load on the CLK pin. Care should be taken to en-
sure that no jogs or glitches occur in the CLK signal as shown in Figure 6-3. If pre-
sent, these glitches will be passed onto the PLL and cause an occasional error.
S erial Lines
7. Run serial outputs parallel to each other, or one on top of the other at all times and
route them away from the Transmitter. Do the same for serial inputs on the Receiver.
Running these serial traces adjacently will minimize noise caused by these extremely
fast signals on other traces. Use of strip lines for serial signals is recommended.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| Am7968-175LMC | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| Am7969 | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| Am7968-125DKC | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| Am7969-125DKC | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| Am7968-175DKC | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM7968-175JC | 制造商:Rochester Electronics LLC 功能描述: |
| AM7968-175JC-G | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AM7968-175LKC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| AM7968-175LMC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| AM7968-175PC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transmitter |
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