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參數資料
| 型號： | XRT83L34 |
| 廠商： | Exar Corporation |
| 英文描述： | QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| 中文描述： | 四T1/E1/J1收發左/上海收發器和時鐘恢復和抖動衰減器 |
| 文件頁數： | 1/82頁 |
| 文件大小： | 447K |
| 代理商： | XRT83L34 |
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Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
PRELIMINARY
XRT83L34
QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
FEBRUARY 2004
REV. P1.3.4
GENERAL DESCRIPTION
The XRT83L34 is a fully integrated Quad (four
channel) long-haul and short-haul line interface unit
for T1 (1.544Mbps) 100
, E1 (2.048Mbps) 75
or
120
,
or J1 110
applications.
In long-haul applications the XRT83L34 accepts
signals that have been attenuated from 0 to 36dB at
772kHz in T1 mode (equivalent of 0 to 6000 feet of
cable loss) or 0 to 43dB at 1024kHz in E1 mode.
In T1 applications, the XRT83L34 can generate five
transmit pulse shapes to meet the short-haul Digital
Cross-Connect (DSX-1) template requirements as
well as for Channel Service Units (CSU) Line Build
Out (LBO) filters of 0dB, -7.5dB -15dB and -22.5dB
as required by FCC rules. It also provides
programmable transmit pulse generators for each
channel that can be used for output pulse shaping
allowing performance improvement over a wide
variety of conditions.
The XRT83L34 provides both a parallel Host
microprocessor interface as well as a Hardware mode
for programming and control.
Both the B8ZS and HDB3 encoding and decoding
functions are selectable as well as AMI. An on-chip
crystal-less jitter attenuator with a 32 or 64 bit FIFO
can be placed either in the receive or the transmit
path with loop bandwidths of less than 3Hz. The
XRT83L34 provides a variety of loop-back and
diagnostic features as well as transmit driver short
circuit detection and receive loss of signal monitoring.
It supports internal impedance matching for 75
,
100
,
110
and 120
for both transmitter and
receiver. In the absence of the power supply, the
transmit outputs and receive inputs are tri-stated
allowing for redundancy applications The chip
includes an integrated programmable clock multiplier
that can synthesize T1 or E1 master clocks from a
variety of external clock sources.
APPLICATIONS
T1 Digital Cross-Connects (DSX-1)
ISDN Primary Rate Interface
CSU/DSU E1/T1/J1 Interface
T1/E1/J1 LAN/WAN Routers
Public switching Systems and PBX Interfaces
T1/E1/J1 Multiplexer and Channel Banks
Features (See Page 2)
F
IGURE
1 B
LOCK
D
IAGRAM
OF
THE
XRT83L34 T1/E1/J1 LIU (H
OST
M
ODE
)
One of four channels, CHANNEL_n - (n= 0:3)
HW/HOST
WR_R/W
RD_DS
ALE_AS
CS
RDY_DTACK
INT
ICT
μ
PTS1
μ
PTS2
D[7:0]
μ
PCLK
A[7:0]
RESET
TPOS_n/TDATA_n
TNEG_n/CODES_n
TCLK_n
RCLK_n
RNEG_n/LCV_n
RPOS_n/RDATA_n
RLOS_n
RTIP_n
RRING_n
MASTER CLOCK SYNTHESIZER
QRSS
PATTERN
GENERATOR
DMO_n
TTIP_n
TRING_n
TXON_n
HDB3/
B8ZS
ENCODER
TX/RX JITTER
ATTENUATOR
TIMING
CONTROL
TX FILTER
& PULSE
SHAPER
LINE
DRIVER
DRIVE
MONITOR
LOCAL
ANALOG
LOOPBACK
REMOTE
LOOPBACK
DIGITAL
LOOPBACK
HDB3/
B8ZS
DECODER
TX/RX JITTER
ATTENUATOR
TIMING &
DATA
RECOVERY
PEAK
DETECTOR
& SLICER
QRSS
DETECTOR
NETWORK
LOOP
DETECTOR
RX
EQUALIZER
EQUALIZER
CONTROL
AIS
DETECTOR
LOS
DETECTOR
LBO[3:0]
LOOPBACK
ENABLE
J
S
NLCD ENABLE
QRSS ENABLE
MICROPROCESSOR CONTROLLER
TEST
DFM
TAOS
ENABLE
MCLKE1
MCLKT1
MCLKOUT
相關PDF資料 |
PDF描述 |
|---|---|
| XRT83L34IV | QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XRT83SH314 | 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83SH314_0610 | 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83SH314IB | 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83SH38 | 8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XRT83L34_05 | 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XRT83L34ES | 功能描述:外圍驅動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT83L34IV | 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT83L34IV-F | 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT83L34IVTR | 功能描述:外圍驅動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
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