DS2155LNB+ Maxim Integrated Products, DS2155LNB+ Datasheet - Page 14
DS2155LNB+
Manufacturer Part Number
DS2155LNB+
Description
IC TXRX T1/E1/J1 SGL 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2155L.pdf
(238 pages)
Specifications of DS2155LNB+
Function
Single-Chip Transceiver
Interface
E1, HDLC, J1, T1
Number Of Circuits
1
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Includes
BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
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Reader’s Note: This data sheet assumes a particular nomenclature of the T1 operating environment. In
each 125µs frame there are 24 8-bit channels plus a framing bit. It is assumed that the framing bit is sent
first followed by channel 1. Each channel is made up of eight bits that are numbered 1 to 8. Bit number 1
is the MSB and is transmitted first. Bit number 8 is the LSB and is transmitted last. The term “locked” is
used to refer to two clock signals that are phase- or frequency-locked or derived from a common clock
(i.e., a 1.544MHz clock can be locked to a 2.048MHz clock if they share the same 8kHz component).
Throughout this data sheet, the following abbreviations are used:
B8ZS
BOC
CRC
D4
ESF
FDL
FPS
Fs
Ft
HDLC
MF
SLC–96
Bipolar with 8 Zero Substitution
Bit-Oriented Code
Cyclical Redundancy Check
Superframe (12 frames per multiframe) Multiframe Structure
Extended Superframe (24 frames per multiframe) Multiframe Structure
Facility Data Link
Framing Pattern Sequence in ESF
Signaling Framing Pattern in D4
Terminal Framing Pattern in D4
High-Level Data Link Control
Multiframe
Subscriber Loop Carrier—96 Channels
14 of 238
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