XR-T6165 Datasheet, PDF (12/16 Pages) Exar Corporation – Codirectional Digital Data Processor

XR-T6165
Codirectional Interface Pulse Masks
Figure 8 and Figure 9 show the CCITT G.703 64kbps
codirectional interface pulse masks for single and double
pulses respectively of either polarity. Note that this mask
is for the pulse measured at the XR-T6164 transmitter
output (application circuit shown in Figure 6) when
terminated with a 120Ω resistor.
V
1.0
0.5
0
ÎÎÎÎÎÎÎÎ
3.12µs
(3.9 -0.78)
3.51µs
(3.9 -0.39)
3.9µs
4.29µs
(3.9 + 0.39)
6.5µs
(3.9 + 2.6)
7.8µs
(3.9 + 3.9)
Figure 8. Mask for a Single Pulse
V
1.0
0.5
0
ÎÎÎÎÎÎÎÎ
7.02µs
(7.8 - 0.78)
7.41µs
(7.8 - 0.39)
7.8µs
8.19µs
(7.8 + 0.39)
10.4µs
(7.8 + 2.6)
11.7µs
(7.8 + 3.9)
Figure 9. Mask for Double Pulse
Rev. 2.02
12