DS26518GN+ Maxim Integrated Products, DS26518GN+ Datasheet
DS26518GN+
Manufacturer Part Number
DS26518GN+
Description
IC TXRX T1/E1/J1 8PORT 256-CSBGA
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Specifications of DS26518GN+
Number Of Drivers/receivers
8/8
Protocol
T1/E1/J1
Voltage - Supply
3.135 V ~ 3.465 V
Mounting Type
Surface Mount
Package / Case
256-CSBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
GENERAL DESCRIPTION
The DS26518 is a single-chip 8-port framer and line
interface unit (LIU) combination for T1, E1, and J1
applications. Each port is independently configurable,
supporting both long-haul and short-haul lines. The
8-port SCT is software compatible with the DS26519
and nearly software compatible with the DS26528
and its derivatives.
APPLICATIONS
Routers
Channel Service Units (CSUs)
Data Service Units (DSUs)
Muxes
Switches
Channel Banks
T1/E1 Test Equipment
FUNCTIONAL DIAGRAM
ORDERING INFORMATION
+ Denotes lead-free/RoHS compliant device.
www.maxim-ic.com
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
DS26518G
DS26518G+
DS26518GN
DS26518GN+
NETWORK
PART
T1/E1/J1
Transceiver
-40qC to +85qC
-40qC to +85qC
T1/J1/E1
TEMP RANGE
0qC to +70qC
0qC to +70qC
DS26518
x8
PIN-PACKAGE
256 TE-CSBGA
256 TE-CSBGA
256 TE-CSBGA
256 TE-CSBGA
BACKPLANE
TDM
1 of 286
8-Port T1/E1/J1 Transceiver
FEATURES
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S T1-to-E1 Conversion
Features Continued in Section 2.
Eight Complete T1, E1, or J1 Long-Haul/
Short-Haul Transceivers (LIU Plus Framer)
Independent T1, E1, or J1 Selections for Each
Transceiver
Fully Internal Impedance Match, No External
Resistor
Software-Selectable Transmit- and Receive-
Side Termination for 100: T1 Twisted Pair,
110: J1 Twisted Pair, 120: E1 Twisted Pair,
and 75: E1 Coaxial Applications
Hitless Protection Switching
Crystal-Less Jitter Attenuators Can Be
Selected for Transmit or Receive Path; Jitter
Attenuator Meets ETS CTR 12/13, ITU-T
G.736, G.742, G.823, and AT&T Pub 62411
External Master Clock Can Be Multiple of
2.048MHz or 1.544MHz for T1/J1 or E1
Operation; This Clock is Internally Adapted
for T1 or E1 Usage in the Host Mode
Receive-Signal Level Indication from -2.5dB
to -36dB in T1 Mode and -2.5dB to -44dB in E1
Mode in Approximate 2.5dB Increments
Transmit Open- and Short-Circuit Detection
LIU LOS in Accordance with G.775, ETS 300
233, and T1.231
Transmit Synchronizer
Flexible Signaling Extraction and Insertion
Using Either the System Interface or
Microprocessor Port
Alarm Detection and Insertion
T1 Framing Formats of D4, SLC-96, and ESF
J1 Support
E1 G.704 and CRC-4 Multiframe
REV: 022007
DS26518
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