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參數資料
| 型號： | MC740-430E |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 47-Gb/s 4:1 Multiplexer |
| 中文描述： | 47 - Gb / s的4:1多路復用器 |
| 文件頁數： | 10/15頁 |
| 文件大?。?/td> | 461K |
| 代理商： | MC740-430E |
- 10 -
NEL
OPERATION
CAUTION
The MC740-430E is very sensitive to electrostatic discharge (ESD). ESD preventive
measures must be employed at customer
’
s working desk. Before operating the
MC740-430E, please read the handling precautions on page 14.
Before connecting any cables to the input and output terminals, short the center and outer
conductors of the cable together.
Mechanical shock can damage or destroy the MC740-430E. Please handle carefully.
Do not remove the warranty seals and/or open the cover.
Turn-on procedure
Connect a DC power supply, signal sources (a pulse pattern generator, PPG, and a
synthesizer), an oscilloscope, and a device under test (see the sample implementation, Fig.
9). Here, outputs from the equipments should be turned-off.
If customer connects an AC coupled circuit to the DATA and/or /DATA output terminals,
terminate the terminals with 50-ohm resistors via a bias-tee (see Fig. 9).
Output terminals unused should be terminated with 50-ohm resistors.
Power supply sequence is shown in table 1.
Table 1 Turn-On Procedure
Turn-on sequence
Step 1
Make sure the output voltage of the DC power
supply has been set to be - (minus) 6 V.
The DC -6 V on.
Step 2
Main switch (rear panel) on.
A current of 1 A is observed at the DC power
supply. Wait until the current becomes stable
(approximately 10 sec).
Step 3
Front switch on.
A current of 7 A is observed at the DC power
supply. Wait until the current becomes stable
(approximately 10 sec).
Step 4
RF input on.
Delay adjustment
To operate the MC740-430E normally, the following delay adjustments are needed (refer to
the function diagram, Fig. 1, and sample implementation, Fig. 9).
(1) CLK10 output: Adjust the timing between the input data (after latching) and the
internal clock at the 4:1 MUX.
(2) Clock delay for the DFF (
“
φ
shifter
”
on front panel): Adjust the timing between the
output signal from the 4:1 MUX and the clock signal for the DFF.
MC740-430E
Procedure
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