XRT82D20IW Exar Corporation, XRT82D20IW Datasheet - Page 3

• Manufacturer Part Number: XRT82D20IW
• Description: IC LIU EI SGL 28SOJ
• Manufacturer: Exar Corporation

Specifications of XRT82D20IW

• Product: Framer
• Lead Free Status / RoHS Status: Contains lead / RoHS Compliant

REV. 1.0.8
GENERAL DESCRIPTION................................................................................................ 1
T
PIN DESCRIPTIONS ......................................................................................................... 3
ELECTRICAL CHARACTERISTICS................................................................................. 7
SYSTEM DESCRIPTION................................................................................................. 12
1.0 THE RECEIVE SECTION....................................................................................................................... 12
2.0 DIAGNOSTIC FEATURES..................................................................................................................... 23
PACKAGE OUTLINE DRAWING.................................................................................... 25
ABLE OF CONTENTS
FEATURES................................................................................................................................................. 1
APPLICATIONS.......................................................................................................................................... 1
O
R
1.1 JITTER ATTENUATOR ..................................................................................................................................... 12
1.2 THE TRANSMIT SECTION................................................................................................................................ 12
1.3 THE PULSE SHAPING CIRCUIT ...................................................................................................................... 13
1.4 INTERFACING THE TRANSMIT SECTION OF THE XRT82D20 TO THE LINE.............................................. 15
1.5 INTERFACING THE RECEIVE SECTION TO THE LINE.................................................................................. 17
1.6 CAPACITIVELY-COUPLING THE RECEIVE SECTION(S) OF THE XRT82D20 TO THE LINE...................... 19
2.1 THE LOCAL LOOP-BACK MODE .................................................................................................................... 23
2.2 THE REMOTE LOOP BACK MODE.................................................................................................................. 24
EVISION
RDERING
F
F
F
F
T
T
T
T
T
T
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
IGURE
IGURE
IGURE
IGURE
ABLE
ABLE
ABLE
ABLE
ABLE
ABLE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
A
BSOLUTE MAXIMUM
1: R
2: T
3: 3.3V P
4: 5V P
5: AC E
6: DC E
7. R
1. B
2. P
3. I
4. I
5. R
6. R
8. I
9. I
10. I
11. I
12. R
13. R
14. C
15. C
16. C
17. C
18. I
19. I
H
I
ISTORY
NFORMATION
TER
75%
15
16
V
V
RANSMITTER
ECEIVER
NTERFACE
NTERFACE
LLUSTRATION ON HOW THE
LLUSTRATION OF THE
ECEIVER
LOCK
INOUT OF THE
ECEIVER
ECEIVER
LLUSTRATION OF HOW TO INTERFACE THE
LLUSTRATION OF HOW TO INTERFACE THE
LLUSTRATION OF THE
LLUSTRATION OF THE
OPERATION ONLY
OPERATION ONLY
ECOMMENDED
ECOMMENDED
APACITIVELY
APACITIVELY
APACITIVELY
APACITIVELY
OWER
0.5UI
LECTRICAL
LECTRICAL
OF
OWER
D
M
IAGRAM OF THE
..................................................................................................................................... 26
C
P
J
C
J
AXIMUM
M
HARACTERISTICS
-
T
T
ITTER
ITTER
P
ONSUMPTION INCLUDING
C
AXIMUM
IMING
IMING
C
............................................................................................................
................................................................................................................................................................ 10
ONSUMPTION INCLUDING
HARACTERISTICS
-
-
-
-
C
XRT82D20............................................................................................................................................. 2
C
COUPLING THE
COUPLING THE
COUPLING THE
COUPLING THE
.............................................................................................................................. 2
HARACTERISTICS
T
S
S
HARACTERISTICS
T
R
RANSFER
J
CHEMATIC FOR
D
D
CHEMATIC FOR
RANSFER
....................................................................................................................................................... 17
....................................................................................................................................................... 18
ITTER
ATINGS
IAGRAM IN
IAGRAM IN
J
ITTER
ITU-T G.703 P
A
R
XRT82D20............................................................................................................................... 1
NALOG
EMOTE
T
OLERANCE
XRT82D20 S
T
F
............................................................................................................................................ 7
F
.............................................................................................................. 9
OLERANCE
UNCTION
UNCTION
R
R
R
R
TABLE OF CONTENTS
B
D
....................................................................................................................................... 7
L
L
ECEIVE
ECEIVE
ECEIVE
ECEIVE
OTH
UAL
OCAL
OOP
T
T
................................................................................................................................... 9
.................................................................................................................................. 8
RANSFORMER
RANSFORMER
L
-R
ULSE
S
INE
-B
........................................................................................................................... 11
L
(J
INGLE
AIL
L
(J
INE
, T
S
S
S
S
ACK PATH
OOP
ITTER
AMPLES THE DATA ON THE
ITTER
P
ECTION FOR
ECTION FOR
ECTION FOR
ECTION FOR
M
EST
T
XRT82D20
XRT82D20
OWER
P
EMPLATE FOR
ODE ONLY
-R
-B
OWER
A
C
ACK WITHIN THE
AIL AND
A
TTENUATOR ENABLED
ONDITIONS
-C
-C
TTENUATOR
,
D
OUPLING THE
WITHIN THE
ISSIPATION
OUPLING THE
D
I
ISSIPATION
75 O
120 O
75 O
120 O
,
D
TO THE
TO THE
WITH
UAL
E1 A
: T
HM
HM
HM
HM
SINGLE CHANNEL E1 LINE INTERFACE UNIT
-R
DIGI (P
D
EST
, T
A
A
XRT82D20................................................................... 24
ISABLED
AIL
L
L
XRT82D20 .................................................................. 23
PPLICATION
, T
A
A
INE FOR
INE FOR
PPLICATION AND
PPLICATION AND
XRT82D20
RANSMISSION AND
XRT82D20
PPLICATION AND
PPLICATION AND
P
M
RANSMISSION AND
ATTERN
TPOS
ODE
) T
IN
), T
17) = “1” ........................................................... 6
EST
,
75 O
120 O
WITH
EST
AND
.................................................................. 14
215-1, (-6
C
TO THE
TO THE
ONDITIONS
HM
C
TNEG
HM
DIGI (P
ONDITIONS
3.3V
5V
A
3.3V
5V
A
PPLICATIONS AND
R
PPLICATIONS AND
L
SUPPLY
ECEIVE
L
R
INE FOR
SUPPLY
D
INE FOR
SUPPLY
INPUT PINS
ECEIVE
IN
B) C
SUPPLY
: T
17) = “0” ............................... 6
EST
: T
ABLE
........................................ 21
P
EST
...................................... 22
ATHS ALL
120 O
..................................... 19
P
P
75 O
................................... 20
ATHS ALL
ATTERN
L
................................ 13
P
OSS
ATTERN
HM
HM
3.3V
3.3V
....................... 10
A
A
A
215-1, I
XRT82D20
PPLICATIONS AND
CTIVE
PPLICATIONS AND
A
OPERATION ONLY
CTIVE
215-1, I
OPERATION ONLY
............. 8
NPUT
.......... 7
NPUT
J
ITTER
J
I
IT
5
5
-