sp3508 Exar Corporation, sp3508 Datasheet - Page 17

• Manufacturer Part Number: sp3508
• Description: Rugged 3.3v, 20mbps, 8 Channel Multiprotocol Tranciever With Programmable Dce/dte And Terminination Resistors
• Manufacturer: Exar Corporation

Date: 10/29/04
Figure 30. V.35 Receiver Input Short-Circuit Impedance
Figure 28. V.35 Driver Output Rise/Fall Time
C
C
Figure 32. Driver/Receiver Timing Test Circuit
A
B
T
IN
A
B
f
50Ω
50Ω
IN
(50% Duty Cycle, 2.5V
SP3508 Enhanced WAN Multi–Mode Serial Transceiver
B
A
±2V
I
sc
50Ω
P-P
Oscilloscope
)
C
C
L1
L2
17
Figure 29. V.35 Receiver Input Source Impedance
Figure 31. Driver Output Leakage Current Test
Logic “1”
B
A
V
CC
= 0V
Any one of the three conditions for disabling the driver.
V
CC
C
R
OUT
1
D
2
15pF
D
1
1
D
1
0
A
© Copyright 2004 Sipex Corporation
B
V
A
B
2
50Ω
V
I
I
1
ZSC
ZSC
24kHz, 550mV
Sine Wave
±10V
±10V
p-p