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参数资料
| 型号： | WJLXT388LEB2 |
| 厂商： | CORTINA SYSTEMS INC |
| 元件分类： | 数字传输电路 |
| 英文描述： | DATACOM, PCM TRANSCEIVER, PQFP100 |
| 封装： | 14 X 14MM, ROHS COMPLIANT, LQFP-100 |
| 文件页数： | 1/80页 |
| 文件大小： | 1017K |
| 代理商： | WJLXT388LEB2 |
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Intel LXT388
Dual T1/E1/J1 Transceiver
Datasheet
The LXT388 is a dual short haul Pulse Code Modulation (PCM) transceiver for use in both
1.544 Mbps (T1) and 2.048 Mbps (E1) applications. It incorporates four receivers and two
transmitters in a single LQFP-100 package.
The transmit drivers provide low impedance independent of the transmit pattern and supply
voltage variations. The LXT388 transmits shaped waveforms meeting G.703 and T1.102
specifications. The LXT388 meets the latest transmit return loss specifications, such as ETSI
ETS-300166.
The LXT388 differential receivers provide high noise margin for T1/E1 short-haul operation. In
addition, the LXT388 includes two extra receiver/jitter attenuation blocks that can be used for
Driver Performance Monitoring (DPM) in the active channels. These blocks can also be used to
provide jitter attenuation in the receive and transmit paths simultaneously.
Jitter attenuation performance meets the latest international specifications such as CTR12/13.
The jitter attenuator was optimized for Synchronous Optical NETwork/Synchronous Digital
Hierarchy (SONET/SDH) applications including a 32/64 bit FIFO and a second order DPLL.
The LXT388 includes Intel
Hitless Protection Switching (Intel HPS) feature which helps
increase quality of service and eliminates relays in redundancy and 1+1 protection applications.
Fast tristate-able drivers and a constant delay jitter attenuator are critical to achieving Intel
HPS.
Applications
Product Features
■
SONET/SDH tributary interfaces
■
Digital cross connects
■
Public/private switching trunk line
interfaces
■
Microwave transmission systems
■
M13, E1-E3 MUX
■
Driver Performance Monitor (DPM)
■
Tx and Rx Jitter Attenuator
■
Single rail 3.3V supply with 5V tolerant
inputs
■
Superior crystal-less jitter attenuator
— Meets ETSI CTR12/13, ITU G.736,
G.742, G.823 and AT&T Pub 62411
specifications
— Optimized for SONET/SDH
applications, meets ITU G.783 mapping
jitter specification
— Constant throughput delay jitter
attenuator
■
Intel
HPS for 1 to 1 protection without
relays
■
HDB3, B8ZS, or AMI line encoder/decoder
■
Analog/digital and remote loopback testing
functions
■
LOS per ITU G.775, ETS 300 233 and
T1.231
■
JTAG Boundary Scan test port per IEEE
1149.1
■
100 pin LQFP package
■
Low power consumption of 150mW per
channel (typical)
Order Number: 249269-003
19-Jan-2005
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