DS26324_11 Datasheet, PDF (1/120 Pages) Maxim Integrated Products – 3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit Independent E1, T1 or J1 Selections

19-5754; Rev 3/11
DEMO KIT AVAILABLE
DS26324
3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit
GENERAL DESCRIPTION
The DS26324 is a 16-channel short-haul line
interface unit (LIU) that supports E1/T1/J1 from a
single 3.3V power supply. A wide variety of
applications are supported through internal
impedance matching. A single bill of material can
support E1/T1/J1 that requires no external
termination. Redundancy is supported through
nonintrusive monitoring, optimal high-impedance
modes and configurable 1:1 or 1+1 backup
enhancements. An on-chip synthesizer generates the
E1/T1/J1 clock rates by a single master clock input of
various frequencies. Two clock output references are
also offered. The device is offered in a 256-pin
TE-CSBGA, the smallest package available for a
16-channel LIU.
APPLICATIONS
T1 Digital Cross-Connects
ATM and Frame Relay Equipment
Wireless Base Stations
ISDN Primary Rate Interface
E1/T1/J1 Multiplexer and Channel Banks
E1/T1/J1 LAN/WAN Routers
FUNCTIONAL DIAGRAM
JTAG
SOFTWARE CONTROL
AND JTAG
LOSS
RTIP
RRING
TTIP
TRING
RECEIVER
TRANSMITTER
1
RPOS
RNEG
RCLK
TPOS
TNEG
TCLK
16
FEATURES
 16 E1, T1, or J1 Short-Haul Line Interface
Units
 Independent E1, T1 or J1 Selections
 Fully Internal Impedance Match Requires No
External Resistors
 Software-Selectable Transmit and Receive-
Side Impedance Match
 Crystal-Less Jitter Attenuator
 Selectable Single-Rail and Dual-Rail Mode
and AMI or HDB3/B8ZS Line Encoding and
Decoding
 Detection and Generation of AIS
 Digital/Analog Loss of Signal Detection as
per T1.231, G.775 and ETS 300 233
 External Master Clock Can Be Multiple of
2.048MHz or 1.544MHz for T1/J1 or E1
Operation; This Clock Will Be Internally
Adapted for T1 or E1 Usage
 Receiver Signal Level Indicator from -2.5dB to
-20dB in 2.5dB Increments
 Two Built-In BERT Testers for Diagnostics
 8-Bit Parallel Interface Support for Intel or
Motorola Mode or a 4-Wire Serial Interface
 Transmit Short-Circuit Protection
 G.772 Nonintrusive Monitoring
 Receive Monitor Mode Handles Combinations
of 14dB to 20dB of Resistive Attenuation
Along with 12dB to 30dB of Cable Attenuation
 Specification Compliance to the Latest T1
and E1 Standards
 Single 3.3V Supply with 5V Tolerant I/O
 JTAG Boundary Scan as Per IEEE 1149.1
ORDERING INFORMATION
PART
TEMP RANGE PIN-PACKAGE
DS26324G+
DS26324GN+
DS26324G
DS26324GN
0°C to +70°C 256 TE-CSBGA
-40°C to +85°C 256 TE-CSBGA
0°C to +70°C 256 TE-CSBGA
-40°C to +85°C 256 TE-CSBGA
+Denotes a lead(Pb)-free/RoHS compliant package.
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.
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