LXT362 — Integrated T1 LH/SH Transceiver for DS1/DSX-1 or PRI Applications
Table 9. Control Register #1 Read/Write, Address (A7-A0) = x010000x
Jitter Attenuator
Bit
Name
Function
JASEL0 JASEL1 Position
0
1
2
3
EC1
EC2
EC3
EC4
1
1
0
0
1
Transmit
Receive
Disabled
Sets T1 mode and equalizer
(see Table 10 below for control codes).
X
1 = Enable Unipolar I/O mode and allow insertion/detection of BPVs.
0 = Enable Bipolar I/O mode
4
5
UNIENB
1 = Enable B8ZS encoders/decoders and force Unipolar I/O mode.
0 = Disable B8ZS encoders/decoders
ENCENB
6
7
JASEL0
JASEL1
Select jitter attenuation circuitry position in data path or disables the
JA. See right hand section of table for codes.
Table 10. Equalizer Control Input Settings
EC4
EC3
EC2
EC11
Function
Pulse
Cable
Gain
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
0
0
1
1
1
1
1
1
0
1
0
1
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
D4 Short Haul
T1 Short Haul
T1 Short Haul
T1 Short Haul
T1 Short Haul
T1 Short Haul
0.0 dB pulse
-7.5 dB pulse
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
100 Ω TP
36 dB
36 dB
36 dB
36 dB
26 dB
26 dB
26 dB
26 dB
12 dB
12 dB
12 dB
12 dB
12 dB
12 dB
-15.0 dB pulse
-22.5 dB pulse
0.0 dB pulse
-7.5 dB pulse
-15.0 dB pulse
-22.5 dB pulse
6 V pulse
0-133 ft / 0.6 dB
133-266 ft / 1.2 dB
266-399 ft / 1.8 dB
399-533 ft / 2.4 dB
533-655 ft / 3.0 dB
1. EC1 sets the receive equalizer gain (EGL) for T1 long-haul operation.
30
Datasheet
INTEL [ INTEL ]
