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參數資料
| 型號： | TP3406 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | DASL Digital Adapter for Subscriber Loops |
| 中文描述： | DASL適配器數字用戶環路 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 234K |
| 代理商： | TP3406 |
TL/H/11725
T
November 1992
TP3406
DASL Digital Adapter for Subscriber Loops
General Description
The TP3406 is a complete monolithic transceiver for data
transmission on twisted pair subscriber loops. It is built on
National’s double poly microCMOS process, and requires
only a single
a
5 Volt supply. Alternate Mark Inversion (AMI)
line coding, in which binary ‘1’s are alternately transmitted
as a positive pulse then a negative pulse, is used to ensure
low error rates in the presence of noise with lower emi radia-
tion than other codes such as Bi-phase (Manchester).
Full-duplex transmission at 144 kb/s is achieved on a single
twisted wire pair using a burst-mode technique (Time Com-
pression Multiplexed). Thus the device operates as an ISDN
‘U’ Interface for short loop applications, typically in a PBX
environment, providing transmission for 2 B channels and 1
D channel. On
Y
24 cable, the range is up to 800 meters.
System timing is based on a Master/Slave configuration,
with the line card end being the Master which controls loop
timing and synchronisation. All timing sequences necessary
for loop activation and de-activation are generated on-chip.
Selection of Master and Slave mode operation is pro-
grammed via the Microwire Control Interface.
A 2.048 MHz clock, which may be synchronized to the sys-
tem clock, controls all transmission-related timing functions.
Features
Complete ISDN PBX 2-Wire Data Transceiver including:
Y
2 B plus D channel interface for PBX U
ê
Interface
Y
144 kb/s full-duplex on 1 twisted pair using Burst Mode
Y
Loop range up to 800 meters (
Y
24AWG)
Y
Alternate Mark Inversion coding with transmit filter and
scrambler for low emi radiation
Y
Adaptive line equalizer
Y
On-chip timing recovery, no external components
Y
Standard TDM interface for B channels
Y
Separate interface for D channel
Y
2.048 MHz master clock
Y
Driver for line transformer
Y
4 loop-back test modes
Y
Single
a
5V supply
Y
MICROWIRE
TM
compatible serial control interface
Y
Applications in:
PBX Line Cards
Terminals
Regenerators
Y
Available in 28-pin PLCC Package
Block Diagram
TL/H/11725–1
TRI-STATE
é
is a registered trademark of National Semiconductor Corporation
MICROWIRE
TM
is a trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.
相關PDF資料 |
PDF描述 |
|---|---|
| TP3406V | DASL Digital Adapter for Subscriber Loops |
| TP3410 | TP3410 ISDN Basic Access Echo-Cancelling 2B1Q U Transceiver |
| TP3410J | TP3410 ISDN Basic Access Echo-Cancelling 2B1Q U Transceiver |
| TP3420AJ | ISDN S/T Interface Device |
| TP3420A | ISDN S/T Interface Device |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TP3406N/NOPB | 功能描述:IC ADAPTER DIG QDASL QUAD 20PLCC RoHS:是 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:* |
| TP3406V | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:DASL Digital Adapter for Subscriber Loops |
| TP3406V/NOPB | 功能描述:IC ADAPTER DIG QDASL QUAD 28PLCC RoHS:是 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:* |
| TP3407 E WAF | 制造商:Texas Instruments 功能描述: |
| TP3410 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:TP3410 ISDN Basic Access Echo-Cancelling 2B1Q U Transceiver |
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