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參數(shù)資料
| 型號： | DS21Q43A |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 文件頁數(shù)： | 1/55頁 |
| 文件大?。?/td> | 426K |
| 代理商： | DS21Q43A |
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DS21Q43A
Quad E1 Framer
DS21Q43A
022798 1/55
FEATURES
Four E1 (CEPT or PCM–30) /ISDN–PRI framing
transceivers
All four framers are fully independent; transmit and re-
ceive sections of each framer are fully independent
Frames to FAS, CAS, CCS, and CRC4 formats
8–bit parallel control port that can be connected to ei-
ther multiplexed or non–multiplexed buses
Each of the four framers contains dual two–frame
elastic stores that can connect to asynchronous or
synchronous backplanes up to 8.192 MHz
Easy access to Si and Sa bits
Extracts and inserts CAS signaling
Large counters for bipolar and code violations, CRC4
code word errors, FAS word errors, and E–bits
Programmable output clocks for Fractional E1, per
channel loopback, H0 and H12 applications
Detects and generates AIS, remote alarm, and re-
mote multiframe alarms
Pin compatible with DS21Q41B Quad T1 Framer
5V supply; low power CMOS
Available in 128–pin TQFP
Industrial (–40
°
C to +85
°
C) grade version available
(DS21Q43ATN)
FUNCTIONAL DIAGRAM
FRAMER #1
FRAMER #2
FRAMER #3
FRAMER #0
RECEIVE
FRAMER
TRANSMIT
FORMATTER
ELASTIC
STORE
ELASTIC
STORE
CONTROL PORT
ACTUAL SIZE
QUAD
E1
FRAMER
DESCRIPTION
The DS21Q43A combines four of the popular DS2143
E1 Controllers onto a single monolithic die. The “A” des-
ignation denotes that some new features are available
in the Quad version that were not available in the single
E1 device. The added features in the DS21Q43A are
listed in Section 1. The DS21Q43A offers a substantial
space savings to applications that require more than
one E1 framer on a card. The Quad version is only
slightly bigger than the single E1 device. All four fram-
ers in the DS21Q43A are totally independent, they do
not share a common framing synchronizer. Also, the
transmit and receive sides of each framer are totally in-
dependent. The dual two–frame elastic stores con-
tained in each of the four framers can be independently
enabled and disabled as required. The DS21Q43A
meets all of the latest specifications including CCITT/
ITU G.704, G.706, G.962, and I.431 as well as ETS 300
011 and ETS 300 233.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS21Q50 | Quad E1 Transceiver |
| DS21Q50L | Quad E1 Transceiver |
| DS21Q50LN | Quad E1 Transceiver |
| DS21Q59 | RELIABILITY REPORT FOR DS21Q59, REV A2 |
| DS21S07ASTR | SCSI Terminator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q43AT | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Framer 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 |
| DS21Q43AT+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Framer 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 |
| DS21Q43ATN | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Quad E1 Framer |
| DS21Q43-ATN | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Framer 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 |
| DS21Q44 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Enhanced QUAD E1 FRAMER |
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