參數(shù)資料
型號: SP504CF
英文描述: Application Note
中文描述: 應(yīng)用筆記
文件頁數(shù): 8/31頁
文件大?。?/td> 257K
代理商: SP504CF
8
Rev: A Date:1/27/04
SP504 Multi–Mode Serial Transceivers
Copyright 2004 Sipex Corporation
Figure 3a. Driver/Receiver Timing Test Circuit
Figure 3b. Timing Test Ckt. (V.35 mode only for SP504)
15pF
RO
A
B
A
B
DI
Figure 4. Driver Timing Test Load #2 Circuit
Figure 1. Driver DC Test Load Circuit
Figure 2. Receiver Timing Test Load Circuit
C
L1
15pF
RO
A
B
A
B
DI
C
L2
R
L
A
B
R
R
V
OD
V
OC
500
C
L
Output
Under
Test
S
1
S
2
V
CC
1K
1K
C
RL
Receiver
Output
S
1
S
2
Test Point
V
CC
Note : Figures 3a and 3b shown above are used for evaluating maximum transmission rate. For 10Mbps transmission rate, an input signal of 5MHz is applied
to the driver input. In order for a valid transmission rate, the driver output must adhere to the output electrical specifications (V
& V
) and an
acceptable duty cycle for the protocol tested. The receiver outputs are checked for proper TTL/CMOS V
OH
& V
OL
levels and an acceptable output
duty cycle.
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