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參數資料
型號: DS21Q50LN
廠商: Maxim Integrated Products
文件頁數: 1/87頁
文件大小: 0K
描述: IC TRANSCEIVER E1 QD IND 100LQFP
產品培訓模塊: Lead (SnPb) Finish for COTS
產品變化通告: Product Discontinuation 20/Feb/2012
標準包裝: 90
功能: 收發器
接口: E1
電路數: 4
電源電壓: 3.14 V ~ 3.47 V
電流 - 電源: 230mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應商設備封裝: 100-LQFP(14x14)
包裝: 托盤
包括: AIS 警報檢測器和發生器,回送功能,PRBS 發生器 / 檢測器,遠程檢測器和發生器
1 of 87
REV: 013004
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.
GENERAL DESCRIPTION
The DS21Q50 E1 quad transceiver contains all the
necessary functions for connecting to four E1 lines.
The on-board clock/data recovery circuitry coverts
the AMI/HDB3 E1 waveforms to an NRZ serial
stream. The DS21Q50 automatically adjusts to E1
22AWG (0.6mm) twisted-pair cables from 0km to
over 2km in length. The device can generate the
necessary G.703 waveshapes for both 75
W coax and
120
W twisted-pair cables. The on-board jitter
attenuators (selectable to either 32 bits or 128 bits)
can be placed in either the transmit or receive data
paths. The framers locate the frame and multiframe
boundaries and monitor the data streams for alarms.
The device contains a set of internal registers, from
which the user can access and control the operation
of the unit by the parallel control port or serial port.
The device fully meets all the latest E1 specifications
including ITU-T G.703, G.704, G.706, G.823, G.732,
and I.431 ETS 300 011, ETS 300 233, and ETS 300
166 as well as CTR12 and CTR4.
APPLICATIONS
DSLAMs
Routers
IMA and WAN Equipment
PIN CONFIGURATION
FEATURES
§ Four Complete E1 (CEPT) PCM-30/ISDN-PRI
Transceivers
§ Long-Haul and Short-Haul Line Interfaces
§ 32-Bit or 128-Bit Crystal-Less Jitter Attenuator
§ Frames to FAS, CAS, CCS, and CRC4 Formats
§ 4MHz/8MHz/16MHz Clock Synthesizer
§ Flexible System Clock with Automatic Source
Switching on Loss-of-Clock Source
§ Two-Frame Elastic-Store Slip Buffer on the
Receive Side
§ Interleaving PCM Bus Operation Up to
16.384MHz
§ Configurable Parallel and Serial Port Operation
§ Detects and Generates Remote and AIS Alarms
§ Fully Independent Transmit and Receive
Functionality
§ Four Separate Loopback Functions
§ PRBS Generation/Detection/Error Counting
§ 3.3V Low-Power CMOS
§ Large Counters for Bipolar and Code Violations,
CRC4 Codeword Errors, FAS Word Errors, and
E Bits
§ Eight Additional User-Configurable Output Pins
§ 100-Pin, 14mm x 14mmLQFP Package
ORDERING INFORMATION
PART
TEMP RANGE
PIN-PACKAGE
DS21Q50L
0°C to +70°C
100 LQFP (14mm)
DS21Q50LN
-40°C to +85°C
100 LQFP (14mm)
DS21Q50
Quad E1 Transceiver
www.maxim-ic.com
1
100
LQFP
DS21Q50
TOP VIEW
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DS21Q50L-W+ 功能描述:網絡控制器與處理器 IC Quad E1 Transceiver 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
DS21Q50N 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC
DS21Q55 功能描述:IC TXRX QUAD T1/E1/J1 SCT 256BGA RoHS:否 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS 產品變化通告:Product Discontinuation 06/Feb/2012 標準包裝:750 系列:*
DS21Q552 功能描述:網絡控制器與處理器 IC 5V Quad T1 Transceiver 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
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