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DS26334G Datasheet

  • DS26334G

  • 3.3V, 16-Channel, E1/T1/J1 Short and Long-Haul Line Interfac...

  • 115頁

  • DALLAS   DALLAS

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DS26334
3.3V, 16-Channel, E1/T1/J1 Short-
and Long-Haul Line Interface Unit
www.maxim-ic.com
GENERAL DESCRIPTION
The DS26334 is a 16-channel short/long-haul line
interface unit (LIU) that supports E1/T1/J1 from a
single 3.3V power supply. 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 in a 256-pin
TEBGA, the smallest package available for a 16-
channel LIU.
FEATURES
摟
摟
摟
摟
摟
摟
摟
摟
16 E1, T1, or J1 Short/Long-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
2.048MHz 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
-38dB in T1 Mode and 鈥?dB to 鈥?3dB in E1
Mode 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 30dB of Resistive Attenuation Along with
12dB to 30dB of Cable Attenuation
Specification Compliance to the Latest T1 and
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
摟
摟
摟
摟
摟
摟
摟
FUNCTIONAL DIAGRAM
JTAG
SOFTWARE CONTROL
AND JTAG
MODE
LOSS
RTIP
RRING
TTIP
TRING
RECEIVER
TRANSMITTER
1
RPOS
RNEG
RCLK
TPOS
TNEG
TCLK
摟
摟
ORDERING INFORMATION
PART
16
TEMP RANGE
0擄C to +70擄C
-40擄C to +85擄C
PIN-PACKAGE
256 TEBGA
256 TEBGA
DS26334G
DS26334GN
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 115
REV: 070105

DS26334G 產(chǎn)品屬性

  • Maxim Integrated Products

  • Tube

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