參數(shù)資料
型號(hào): DS26303LN-75+A3
廠商: Maxim Integrated Products
文件頁數(shù): 54/101頁
文件大?。?/td> 0K
描述: IC LIU E1/T1/J1 3.3V 144-ELQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 1
類型: 線路接口裝置(LIU)
驅(qū)動(dòng)器/接收器數(shù): 8/8
規(guī)程: T1/E1/J1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 144-LQFP 裸露焊盤
包裝: 托盤
其它名稱: 90-26303+7N3
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
56 of 101
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 100
Ω/110Ω for T1/J1 mode or
75
Ω/120Ω for E1 mode. The T1 pulse mask is shown in Figure 6-2 and the E1 pulse template is shown in
Table 6-3. DS26303 Template Selections
TS2, TS1, TS0
APPLICATION
000
E1
001
010
Reserved
011
DSX-1 (0-133 ft)
100
DSX-1 (133-266 ft)
101
DSX-1 (266-399 ft)
110
DSX-1 (399-533 ft)
111
DSX-1 (533-655 ft)
Figure 6-2. T1 Transmit Pulse Templates
1. 2
0
-0 . 1
-0 . 2
-0 . 3
-0 . 4
-0 . 5
0. 1
0. 2
0. 3
0. 4
0. 5
0. 6
0. 7
0. 8
0. 9
1. 0
1. 1
- 500
- 3 0 0
- 100
0
300
500
700
- 400
- 200
200
40 0
600
100
TI M E ( n s )
NORM
AL
IZ
ED
AM
PL
IT
UDE
T 1 .1 0 2 / 8 7 , T 1 .4 0 3 ,
C B 11 9 ( O c t . 79 ) , &
I.4 3 1 T e m p la te
-0 .7 7
-0 .3 9
-0 .2 7
-0 .1 2
0.00
0.27
0.35
0.93
1.16
-5 0 0
-2 5 5
-1 7 5
-7 5
0
175
225
600
750
0.0 5
0.8 0
1.1 5
1.0 5
-0 .0 7
0.0 5
-0 .7 7
-0 .2 3
-0 .1 5
0.00
0.15
0.23
0.46
0.66
0.93
1.16
-5 0 0
-1 5 0
-1 0 0
0
100
150
300
430
600
750
-0 .0 5
0.50
0.95
0.90
0.50
-0 .4 5
-0 .2 0
-0 .0 5
UI
T im e
A m p .
M A X IM UM CURV E
UI
T im e
A m p .
M INIM UM CURV E
-0 .7 7
-0 .3 9
-0 .2 7
-0 .1 2
0.00
0.27
0.34
0.77
1.16
- 500
- 255
- 175
-7 5
0
175
225
600
750
0.05
0.80
1.20
1.05
-0 .0 5
0.05
-0 .7 7
-0 .2 3
-0 .1 5
0.00
0.15
0.23
0.46
0.61
0.93
1.16
- 500
- 150
- 100
0
100
150
300
430
600
750
-0 .0 5
0.50
0.95
0.90
0.50
-0 .4 5
-0 .2 6
-0 .0 5
UI
T im e
A m p .
M A X IM UM CURV E
UI
T im e
A m p .
M INIM UM CURV E
D S X - 1 T e m pl a t e ( p e r A N S I T 1 . 10 2 - 1993 )
D S 1 T e m p l a t e ( pe r A N S I T 1. 40 3 - 1995)
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