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DS26324 Datasheet

  • DS26324

  • 3.3V、16路、E1/T1/J1短程線路接口單元

  • 112頁

  • MAXIM   MAXIM

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DS26324
3.3V, 16-Channel, E1/T1/J1
Short-Haul Line Interface Unit
www.maxim-ic.com
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
with
minimum
external
components. 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 a 256-pin TEBGA,
the smallest package available for a 16-channel LIU.
FEATURES
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16 E1, T1, or J1 Short-Haul Line Interface Units
Independent E1, T1, or J1 selections
Software-Selectable Transmit and Receive-Side
Impedance Matching
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 ETSI 300233
External Master Clock can be Multiple of 2.048 or
1.544MHz for T1/J1 or E1 Operation (This clock
will be internally adapted for T1 or E1 Use.)
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 4-Wire Serial Interface
Transmit Short-Circuit Protection
G.772 Nonintrusive Monitoring
Receive Monitor Mode Handles Combinations of
14dB or 20dB of Resistive Attenuation Along with
12dB to 30dB of Cable Attenuation.
Specification Compliance to the Latest T1/E1
Standards鈥擜NSI T1.102, AT&T Pub 62411,
T1.231, T1.403, ITU G.703, G.742, G.775,
G.823, ETSI 300 166, and ETSI 300 233
Single 3.3V Supply with 5V Tolerant I/O
JTAG Boundary Scan as per IEEE 1149.1
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
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RTIP
RRING
TTIP
TRING
RECEIVER
TRANSMITTER
1
RPOS
RNEG
RCLK
TPOS
TNEG
TCLK
ORDERING INFORMATION
PART
DS26324G
DS26324GN
TEMP RANGE
0擄C to +70擄C
-40擄C to +85擄C
PIN-PACKAGE
256 TEBGA
256 TEBGA
16
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.
1 of 112
REV: 070105

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DS26324G

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