參數(shù)資料
型號： DS3254
英文描述： Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
中文描述： 單/雙/三/四路、DS3/E3/STS-1 LIU
文件頁數(shù)： 1/71頁
文件大小： 925K
代理商： DS3254
1 of 71
REV: 061705
Note:
may be simultaneously available through various sales channels. For information about device errata, click here:
www.maxim-ic.com/errata
.
GENERAL DESCRIPTION
The DS3251 (single), DS3252 (dual), DS3253
(triple), and DS3254 (quad) line interface units (LIUs)
perform the functions necessary for interfacing at the
physical layer to DS3, E3, or STS-1 lines. Each LIU
has independent receive and transmit paths and a
built-in jitter attenuator. An on-chip clock adapter
generates all line-rate clocks from a single input
clock. Control interface options include 8-bit parallel,
SPI, and hardware mode.
APPLICATIONS
SONET/SDH and PDH Multiplexers
Digital Cross-Connects
Access Concentrators
ATM and Frame Relay Equipment
Routers
PBXs
DSLAMs
CSU/DSUs
FUNCTIONAL DIAGRAM
FEATURES
Pin-Compatible Family of Products
Each Port Independently Configurable
Receive Clock and Data Recovery for Up to 380
meters (DS3), 440 meters (E3), or 360 meters
(STS-1) of 75 Coaxial Cable
Standards-Compliant Transmit Waveshaping
Three Control Interface Options: 8-Bit Parallel,
SPI, and Hardware Mode
Built-In Jitter Attenuators can be Placed in Either
the Receive or Transmit Paths
Jitter Attenuators Have Provisionable Buffer
Depth: 16, 32, 64, or 128 Bits
Built-In Clock Adapter Generates All Line-Rate
Clocks from a Single Input Clock (DS3, E3,
STS-1, OC-3, 19.44MHz, 38.88MHz,
77.76MHz)
B3ZS/HDB3 Encoding and Decoding
Minimal External Components Required
Local and Remote Loopbacks
Low-Power 3.3V Operation (5V Tolerant I/O)
Industrial Temperature Range: -40°C to +85°C
Small Package: 144-Pin, 13mm x 13mm
Thermally Enhanced CSBGA
Drop-In Replacement for DS3151/52/53/54 LIUs
IEEE 1149.1 JTAG Support
Features continued on page 5.
ORDERING INFORMATION
PART
LIU
TEMP RANGE
DS3251
1
0°C to +70°C
DS3251N
1
-40°C to +85°C
DS3252
2
0°C to +70°C
DS3252N
2
-40°C to +85°C
DS3253
3
0°C to +70°C
DS3253N
3
-40°C to +85°C
DS3254
4
0°C to +70°C
DS3254N
4
-40°C to +85°C
PIN-PACKAGE
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
144 TE-CSBGA
RXP
RXN
TXP
TXN
CLK
DATA
CLK
DATA
LINE IN
DS3, E3,
OR STS-1
LINE OUT
DS3, E3,
OR STS-1
RECEIVE
CLOCK
AND DATA
TRANSMIT
CLOCK
AND DATA
EACH LIU
STATUS
CONTROL
Dallas
Semiconductor
DS325x
DS3251/DS3252/DS3253/DS3254
Single/Dual/Triple/Quad
DS3/E3/STS-1 LIUs
www.maxim-ic.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS3254+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad DS3/E3/STS-1 Line Interface Unit 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
DS3254A3 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad DS3/E3/STS-1 Line Interface Unit 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
DS3254A3+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad DS3/E3/STS-1 Line Interface Unit 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
DS3254DK 功能描述:網(wǎng)絡(luò)開發(fā)工具 DS3254 Dev Kit RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V
DS3254N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad DS3/E3/STS-1 Line Interface Unit 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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