Datasheet

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APPLICATION INFORMATION
R
T
R
T
Device
HVD10
HVD11
HVD12
Number of Devices on Bus
64
256
256
NOTE
:
The line should be terminated at both ends with its characteristic impedance (R
T
= Z
O
). Stub lengths off the main line
should be kept as short as possible.
Stub
Driver Input
Driver Output
Receiver Input
Receiver Output
SN65HVD10-EP , , SN65HVD11-EP
SN65HVD12-EP
SGLS278E – DECEMBER 2004 – REVISED SEPTEMBER 2007
An example application for the HVD12 is illustrated in Figure 22 . Two HVD12 transceivers are used to
communicate data through a 2000 foot (600 m) length of Commscope 5524 category 5e+ twisted pair cable. The
bus is terminated at each end by a 100 Ω resistor, matching the cable characteristic impedance. Figure 23
illustrates operation at a signaling rate of 250 kbps.
Figure 22. Typical Application Circuit
Figure 23. HVD12 Input and Output Through 2000 Feet of Cable
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Product Folder Link(s): SN65HVD10-EP SN65HVD11-EP SN65HVD12-EP