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參數資料
| 型號： | XRT82L24 |
| 廠商： | Exar Corporation |
| 英文描述： | Quad E1 Line Transceiver with Clock Recovery and Jitter Attenuator(四E1線收發器（帶時鐘恢復和振動衰減器）) |
| 中文描述： | 四路E1線路收發器時鐘恢復和抖動衰減器（四素E1線收發器（帶時鐘恢復和振動衰減器）） |
| 文件頁數： | 1/4頁 |
| 文件大小： | 35K |
| 代理商： | XRT82L24 |
Exar
Coporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7200
www.exar.com
PRELIMINARY
XRT82L24
QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
OCTOBER 1999
REV. 1.0.0
GENERAL DESCRIPTION
The
XRT82L24
is a fully integrated, 4-Channel, short-
haul, line interface Transceiver for 75 Ohm or 120
Ohm E1 (2.048Mbps) applications. Each channel
consists of a receiver with equalizer for reliable data
and clock recovery, and a transmitter which accepts
either single or dual-rail digital input for signal trans-
mission to the line using a low impedance line driver.
The device also includes a crystal-less jitter attenua-
tor which, depending on system requirements, can
be selected in either the transmit or receive path
through the Host or Hardware Mode Control.
The
XRT82L24
is a low power CMOS device requir-
ing only a single 3.3V power supply with all digital in-
puts 5V tolerant.
FEATURES
Fully integrated quad, short-haul PCM transceivers
for E1 applications.
On Chip Receive Equalizer and Transmit Pulse
Shaper for CEPT 75 and 120 Ohm line terminations
On chip clock recovery circuit
Receive input can be transformer or capacitor cou-
pled
Crystal-less jitter attenuator which can be selected
in the transmit or receive path
High receiver interference immunity
Per-channel transmit power shutdown
Tri-state transmit output capability
On chip per-channel driver failure monitoring circuit
On chip HDB3/AMI encoder/decoder functions
Transmit return loss meet or exceeds ETSI 300 166
standard
Meets or exceeds specifications in ITU G.703,
G.775, G.736 and G.823; and ETSI 300-166
Logic Inputs Accept either 3.3V or 5.0V Levels.
Ultra Low Power Dissipation
Single +3.3V Supply Operation
APPLICATIONS
Digital access cross connects(DAC)
Channel Banks
High speed data transmission line cards
E1 Multiplexer
Public switching systems and PBX interfaces
BLOCK DIAGRAM OF XRT82L24
MUX
Jitter
Attenuator
Clock
Generator
Timing
Control
Tx Pulse
Shaper
Line
Driver
Receive
Equalizer
Peak
Detector
Data & Timing
Recovery
Jitter
Attenuator
LOS
Detect
Tx Driver
Monitor
MUX
Remote
Loopback
Local
Loopback
TCLK[1:4]
TPOS[1:4]
TNEG[1:4]
TTIP[1:4]
TRING[1:4]
RCLK[1:4]
RPOS[1:4]
RNEG[1:4]
LOS[1:4]
RTIP[1:4]
RRING[1:4]
MCLK
Enable/Disable
Enable/Disable
Loopback Control
Loopback Control
Channel 1
Channel 2
Channel 3
Channel 4
DMO
uP
Control
ADD[3;0]
D[7:0
]
WR_R/W
ALE-AS
CS
RD-DS
INT
RDY_DTACK
PCLK
PTS1
PTS2
TAOS
ENCODER
DECODER
MODE
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| XRT82L34 | Quad T1/E1/J1 Line Transceiver with Clock Recovery and Jitter Attenuator(四 T1/E1/J1線收發器（帶時鐘恢復和振蕩衰減器）) |
| XRT82L38 | Octal E1/T1/J1 Line Transceiver with Clock Recovery and Jitter Attenuator(八 T1/E1/J1線收發器（帶時鐘恢復和振蕩衰減器）) |
| XRT83D10 | SINGLE CHANNEL DS1/CEPT LINE INTERFACE UNIT |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| XRT82L24A | 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XRT82L24AES | 功能描述:外圍驅動器與原件 - PCI 4 CH E1 LIU SH 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 |
| XRT82L24AIV | 功能描述:外圍驅動器與原件 - PCI Four ChannelE1 LIU 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 |
| XRT82L24AIV-F | 功能描述:網絡控制器與處理器 IC Four ChannelE1 LIU 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 |
| XRT82L24ES | 功能描述:界面開發工具 Evaluation Board for XRT82L24 Series RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
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