SP508E Datasheet, PDF (15/29 Pages) Exar Corporation – Rugged 20Mbps, 8 Channel Multi-Protocol Transceiver with Programmable DCE/DTE and Termination Resistors

A
B
I_SC
±2V
C
Figure 28. V.35 Driver Output Short-Circuit
Impedance
A
50
50
B
Oscilloscope
50
C
Figure 29. V.35 Driver Output Rise/Fall Time
A
V₂
V₁
50
24kHz, 550mV_p-p
Sine Wave
B
C
Figure 30. V.35 Receiver Input Source Impedance
A
B
I_sc
±2V
C
Figure 31. V.35 Receiver Input Short-Circuit
Impedance
Any one of the three conditions for disabling the driver.
V_CC = 0V
11
1
D₂
D₁
D₀
A
V_CC
I_ZSC
±10V
Logic “1”
B
T_IN
B
A
f_IN (50% Duty Cycle, 2.5VP-P)
CL1
CL2
B
R_OUT
A
15pF
Figure 32. Driver Output Leakage Current Test
Figure 33. Driver/Receiver Timing Test Circuit
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.comSP508E_100_072412
15