DS21448L+ Maxim Integrated Products, DS21448L+ Datasheet - Page 2

• Manufacturer Part Number: DS21448L+
• Description: IC LIU QUAD E1/T1/J1 128-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS21448L+

• Number Of Drivers/receivers: 4/4
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Framer
• Number Of Transceivers: 4
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 400 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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3.1
4.1
4.2
4.3
6.1
6.2
6.3
6.4
6.5
6.6
7.1
7.2
7.3
7.4
8.1
8.2
8.3
11.1
11.2
12.1
12.2
4.3.1
4.3.2
4.3.3
6.2.1
6.2.2
6.2.3
6.2.4
BLOCK DIAGRAMS ........................................................................................................................ 5
PIN DESCRIPTION .......................................................................................................................... 7
DETAILED DESCRIPTION ............................................................................................................ 13
PORT OPERATION ....................................................................................................................... 14
STATUS REGISTERS.................................................................................................................... 23
DIAGNOSTICS .............................................................................................................................. 28
ANALOG INTERFACE................................................................................................................... 33
JTAG BOUNDARY SCAN ARCHITECTURE AND TEST ACCESS PORT .................................. 43
OPERATING PARAMETERS ........................................................................................................ 48
AC TIMING PARAMETERS AND DIAGRAMS.............................................................................. 49
PIN CONFIGURATIONS ................................................................................................................ 56
PACKAGE INFORMATION ........................................................................................................... 58
THERMAL INFORMATION ............................................................................................................60
REVISION HISTORY...................................................................................................................... 60
DS21448
H
S
P
I
L
PRBS G
E
E
E
R
T
J
G.703 S
JTAG TAP C
I
T
N
NSTRUCTION
ITTER
OOPBACKS
RANSMITTER
EST
ERIAL
ARALLEL
RROR
RROR
RROR
ARDWARE
ECEIVER
-B
144-P
128-P
144-B
128-P
Device Power-Up and Reset................................................................................................................ 18
Register Map........................................................................................................................................ 18
Control Registers ................................................................................................................................. 19
Remote Loopback (RLB) ..................................................................................................................... 31
Local Loopback (LLB) .......................................................................................................................... 31
Analog Loopback (LLB) ....................................................................................................................... 31
Dual Loopback (DLB)........................................................................................................................... 31
AND
R
A
EGISTERS
P
C
C
I
IN
IN
ALL
IN
NSERTION
YNCHRONIZATION
ENERATION AND
TTENUATOR
L
ORT
OUNTER
OUNTER
OOP
AND
P
..................................................................................................................................... 33
BGA ............................................................................................................................56
LQFP...........................................................................................................................57
LQFP (56-G4011-001) ................................................................................................ 59
M
ORT
TE-PBGA (56-G6020-001) ....................................................................................... 58
.................................................................................................................................. 31
ONTROLLER
O
R
ODE
...............................................................................................................................33
-C
DS21Q348 D
EGISTER
PERATION
O
ODE
.......................................................................................................................... 31
.......................................................................................................................... 46
U
......................................................................................................................... 14
PERATION
........................................................................................................................ 32
PDATE
..................................................................................................................... 34
G
ENERATION AND
................................................................................................................ 45
D
.............................................................................................................. 15
S
S
ETECTION
............................................................................................................ 32
TATE
IGNAL
......................................................................................................... 18
IFFERENCES
TABLE OF CONTENTS
M
................................................................................................. 34
ACHINE
............................................................................................ 31
D
...................................................................................... 13
ETECTION
.................................................................................... 43
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...................................................................... 28