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參數(shù)資料
| 型號： | DS2149Q+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 1/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LIU T1/J1 5V 28-PLCC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 類型： | 線路接口裝置（LIU） |
| 規(guī)程： | T1/J1 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 帶卷 (TR) |
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REV: 113004
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 DS2149 is a fully integrated LIU for long-
haul or short-haul T1 applications over twisted-
pair installations. It interfaces to two twisted-pair
lines—one pair for transmit and one pair for
receive
through
an
appropriate
network
interface. The device can be configured for
control through software or hardware mode.
Software control is accomplished over a serial
port, in hardware mode; individual pin settings
allow standalone operation. The device provides
a precise, crystal-less jitter attenuator that can be
placed in either the transmit or receive path.
APPLICATIONS
Routers
Data Service Units (DSUs)
Channel Service Units (CSUs)
Muxes
Switches
Channel Banks
T1/E1 Test Equipment
PIN CONFIGURATION
FEATURES
§ Fully Integrated Line Interface Unit (LIU)
§ Pin Compatible with LevelOne LXT362
§ Supports Both Long Haul and Short Haul
§ Crystal-Less Jitter Attenuator
§ Jitter Attenuator Programmable for Transmit
or Receive Path
§ Meets ANSI T1.102, T1.403, T1.408, and
AT&T 62411
§ Usable Receive Sensitivity of 0dB to -36dB
That Allows the Device to Operate on
0.63mm (22AWG) Cables Up to 6k Feet in
Length
§ Five Line Build-Out Settings for Short-Haul
Applications
§ Four CSU Filters from 0dB to -22.5dB
§ Transmit/Receive Performance Monitors
with Driver-Fail, Monitor-Open, and Loss-
of-Signal Outputs
§ Bipolar or NRZ Interface
§ Programmable B8ZS Encoder/Decoder
§ QRSS Generator/Detector
§ Local, Remote, and Analog Loopbacks
§ Generates and Detects In-Band Loop-Up and
Loop-Down Codes
§ Serial Interface Provides Access to Control
Registers
ORDERING INFORMATION
PART
TEMP RANGE
PIN-PACKAGE
DS2149Q
0°C to +70°C
28 PLCC
DS2149QN
-40°C to +85°C
28 PLCC
5
6
7
8
9
10
11
25
24
23
22
21
20
19
12 13 14 15 16 17 18
4 3 2 1 28 27 26
DS2149
TOP VIEW
PLCC
www.maxim-ic.com
DS2149
5V T1/J1 Line Interface Unit
DEMO KIT AVAILABLE
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