DS26303LN-75+ Maxim Integrated Products, DS26303LN-75+ Datasheet - Page 56

• Manufacturer Part Number: DS26303LN-75+
• Description: IC LIU E1/T1/J1 3.3V 144-ELQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26303LN-75+

• Number Of Drivers/receivers: 8/8
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP Exposed Pad, 144-eLQFP, 144-HLQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.3.1 Transmit Line Templates
The DS26303 the transmitters can be selected individually to meet the pulse masks for E1 and T1/J1 mode. The
T1/J1 pulse mask is shown in the transmit pulse template and can be configured on an individual LIU basis. The
TIMPRM pin/bit is used to select the internal transmit terminating impedance of 100Ω/110Ω for T1/J1 mode or
75Ω/120Ω for E1 mode. The T1 pulse mask is shown in
Figure
Table 6-3. DS26303 Template Selections
Figure 6-2. T1 Transmit Pulse Templates
TS2, TS1, TS0
6-3.
000
001
010
011
100
101
110
111
D S X - 1 T e m p l a t e ( p e r A N S I T 1 . 1 0 2 - 1 9 9 3 )
- 0 . 1
- 0 . 2
- 0 . 3
- 0 . 4
- 0 . 5
1 . 2
1 . 1
1 . 0
0 . 9
0 . 8
0 . 7
0 . 6
0 . 5
0 . 4
0 . 3
0 . 2
0 . 1
0
- 5 0 0
M A X I M U M C U R V E
- 0 . 7 7
- 0 . 3 9
- 0 . 2 7
- 0 . 2 7
- 0 . 1 2
0 . 0 0
0 . 2 7
0 . 3 5
0 . 9 3
1 . 1 6
U I
- 4 0 0
T im e
- 5 0 0
- 2 5 5
- 1 7 5
- 1 7 5
- 7 5
0
1 7 5
2 2 5
6 0 0
7 5 0
DSX-1 (133-266 ft)
DSX-1 (266-399 ft)
DSX-1 (399-533 ft)
DSX-1 (533-655 ft)
T 1 .1 0 2 / 8 7 , T 1 .4 0 3 ,
C B 1 1 9 ( O c t . 7 9 ) , &
I.4 3 1 T e m p la te
DSX-1 (0-133 ft)
APPLICATION
- 3 0 0
A m p .
0 . 0 5
0 . 0 5
0 . 8 0
1 . 1 5
1 . 1 5
1 . 0 5
1 . 0 5
- 0 . 0 7
0 . 0 5
0 . 0 5
Reserved
E1
- 2 0 0
- 0 . 7 7
- 0 . 2 3
- 0 . 2 3
- 0 . 1 5
0 . 0 0
0 . 1 5
0 . 2 3
0 . 2 3
0 . 4 6
0 . 6 6
0 . 9 3
1 . 1 6
M I N I M U M C U R V E
U I
T im e
- 1 0 0
- 5 0 0
- 1 5 0
- 1 5 0
- 1 0 0
0
1 0 0
1 5 0
1 5 0
3 0 0
4 3 0
6 0 0
7 5 0
A m p .
- 0 . 0 5
- 0 . 0 5
0 . 5 0
0 . 9 5
0 . 9 5
0 . 9 0
0 . 5 0
- 0 . 4 5
- 0 . 4 5
- 0 . 2 0
- 0 . 0 5
- 0 . 0 5
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
0
56 of 101
T I M E ( n s )
D S 1 T e m p l a t e ( p e r A N S I T 1 .4 0 3 - 1 9 9 5 )
1 0 0
M A X I M U M C U R V E
- 0 . 7 7
- 0 . 3 9
- 0 . 2 7
- 0 . 2 7
- 0 . 1 2
0 . 0 0
0 . 2 7
0 . 3 4
0 . 7 7
1 . 1 6
U I
Figure 6-2
T im e
- 5 0 0
- 2 5 5
- 1 7 5
- 1 7 5
- 7 5
0
1 7 5
2 2 5
6 0 0
7 5 0
2 0 0
A m p .
0 . 0 5
0 . 0 5
0 . 8 0
1 . 2 0
1 . 2 0
1 . 0 5
1 . 0 5
- 0 . 0 5
0 . 0 5
0 . 0 5
3 0 0
and the E1 pulse template is shown in
- 0 . 7 7
- 0 . 2 3
- 0 . 2 3
- 0 . 1 5
0 . 0 0
0 . 1 5
0 . 2 3
0 . 2 3
0 . 4 6
0 . 6 1
0 . 9 3
1 . 1 6
M I N I M U M C U R V E
U I
4 0 0
T im e
- 5 0 0
- 1 5 0
- 1 5 0
- 1 0 0
0
1 0 0
1 5 0
1 5 0
3 0 0
4 3 0
6 0 0
7 5 0
5 0 0
A m p .
- 0 . 0 5
- 0 . 0 5
0 . 5 0
0 . 9 5
0 . 9 5
0 . 9 0
0 . 5 0
- 0 . 4 5
- 0 . 4 5
- 0 . 2 6
- 0 . 0 5
- 0 . 0 5
6 0 0
7 0 0