MAX14770EGUA_15 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
MAX14770EGUA_15 Datasheet PDF : 16 Pages
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MAX14770E
±35kV High-ESD Profibus RS-485 Transceiver
ATE
VID
A
R RECEIVER
OUTPUT
B
Figure 8. Receiver Propagation Delay Test Circuit
A
B
VOH
RO
VOL
Figure 9. Receiver Propagation Delays
t = 1MHz, tLH P 3ns, tHL P 3ns
tRPHL
tRPLH
VCC
VCC
2
2
tRSKEW = |tRPHL - tRPLH|
+1.5V
S3
R
S1
-1.5V
1kI
VCC
VID R RO
S2
CL
15pF
RE
GENERATOR
50I
RE
RO
RE
1.5V
tRHZ
RO
0.25V
VCC
1.5V
tRZH, tRZH (SHDN) 0
S1 OPEN
S2 CLOSED
S3 = +1.5V
VOH
VCC
2
0
VCC S1 OPEN
S2 CLOSED
S3 = +1.5V
0
VOH
0
Figure 10. Receiver Enable and Disable Times
8
RE
tRZL, tRZL(SHDN)
RO
1.5V
RE
tRLZ
RO
0.25V
1V
-1V
VCC
S1 CLOSED
1.5V
S2 OPEN
0 S3 = -1.5V
VCC
VCC
2
VOL
VCC S1 CLOSED
S2 OPEN
S3 = -1.5V
0
VCC
VOL
Maxim Integrated
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