參數(shù)資料
型號(hào)： DS21348T
廠商： DALLAS SEMICONDUCTOR
元件分類(lèi)： Digital Transmission Interface
英文描述： DATACOM, PCM TRANSCEIVER, PQFP44
封裝： TQFP-44
文件頁(yè)數(shù)： 1/67頁(yè)
文件大?。?/td> 339K
代理商： DS21348T
1 of 67
031501
FEATURES
Complete E1, T1, or J1 Line Interface Unit
Supports both long and short haul trunks
Internal software-selectable receive-side
termination for 75/100/120
3.3V power supply
32-bit or 128-bit crystal-less jitter attenuator
requires only a 2.048 MHz master clock for
both E1 and T1 with option to use
1.544 MHz for T1
Generates the appropriate line build outs,
with and without return loss, for E1 and
DSX-1 and CSU line build outs for T1
AMI, HDB3, and B8ZS, encoding/decoding
16.384 MHz, 8.192 MHz, 4.096 MHz, or
2.048 MHz clock output synthesized to
recovered clock
Programmable monitor mode for receiver
Loopbacks and PRBS pattern generation/
detection with output for received errors
Generates/detects in-band loop codes, 1 to 16
bits including CSU loop codes
8-bit parallel or serial interface with optional
hardware mode
MUX’d and Non-MUX’d parallel bus
supports Intel or Motorola
Detects/generates blue (AIS) alarms
NRZ/bipolar interface for TX/RX data I/O
Transmit open circuit detection
Receive Carrier Loss (RCL) indication
(G.775)
HIGHZ State for TTIP and TRING
50 mA (rms) current limiter
PIN DESCRIPTION
ORDERING INFORMATION
DS21348TN
44 pin TQFP
(–40
°C to +85°C)
DS21348T
44 pin TQFP
(0
ο
C – 70
ο
C)
DS21348GN 7mm CABGA
(–40
°C to +85°C)
DS21348G
7mm CABGA
(0
ο
C – 70
ο
C)
DS21Q348N (Quad) BGA
(–40
°C to +85°C)
DS21Q348
(Quad) BGA
(0
ο
C – 70
ο
C)
DESCRIPTION
The DS21348 is a complete selectable E1 or T1 Line Interface Unit (LIU) for short haul and long haul
applications. Throughout the data sheet, J1 is represented wherever T1 exists. Receive sensitivity adjusts
automatically to the incoming signal and can be programmed for 0-12 dB or 0-43 dB for E1 applications
and 0-30 dB or 0-36 dB for T1 applications.
The device can generate the necessary G.703 E1
waveshapes in 75 ohm or 120 ohms applications and DSX-1 line build outs or CSU line build outs of
44 TQFP
7 mm
CABGA
1
44
DS21348/Q348
3.3V E1/T1/J1 Line Interface
www.dalsemi.com
相關(guān)PDF資料
PDF描述
DS21348TN DATACOM, PCM TRANSCEIVER, PQFP44
DS21348G DATACOM, PCM TRANSCEIVER, BGA49
DS21Q348N DATACOM, PCM TRANSCEIVER, PBGA144
DS21Q348 DATACOM, PCM TRANSCEIVER, PBGA144
DS21352L DATACOM, PCM TRANSCEIVER, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21348T+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TN+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TNB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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