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参数资料
| 型号： | YTD428-S |
| 元件分类： | 数字传输电路 |
| 英文描述： | DATACOM, DIGITAL SLIC, PQFP100 |
| 封装： | SQFP-100 |
| 文件页数： | 8/28页 |
| 文件大小： | 918K |
| 代理商： | YTD428-S |
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DETAILS OF FUNCTIONS
YTD428
DSU section
Call control
circuit
U ref. pt.
driver
YTD418 or
YTD423
I/F
switch
CT
and
LT
U ref.
pt. I/F
T ref.
pt. I/F
TTL I/F
(No transformer is required)
L1
TA / TB
RA / RB
L2
T
ref.
pt.
side
(DSU)
U
ref.
pt.
side
Layer 3 information
(Bch data)
Figure 4.1 Image Of Using T Ref. Pt. I/F Drive/Receiver Independently
In case of using NTSEL = "L" (TE mode), the signals of TA/TB and RA/RB should be reversed by switches
or other devices. Because S/T bus signals that are connected to TA, TB, RA and RB pin are different between
using YTD428 as DSU (NTSEL = "H") and S/T terminal (NTSEL = "L").
Generally speaking, the terminal resistors are only mounted on the nearest terminal from DSU and other
terminals that are connected with the same bus don't require the terminal resistors. Therefore, it is useful that
switches which can control ON/OFF of the terminal resistors are provided on the equipment.
4.3 Interface Switch Section
Normally, this section connects T I/F section with CT/LT section to provide DSU function (NTSEL = “H”).
By setting this section, the driver/receiver function of the T I/F section can be separated from the CT/LT
section and be used independently (NTSEL = “L”).
For example, it is useful under such a situation that there are some terminals which have DSU function on
the same S/T line.
相关PDF资料 |
PDF描述 |
|---|---|
| YTD428 | DSU LSI for the ISDN Terminal Equipment(用于ISDN终端设备的数据服务集成电路) |
| YTD436-S | DATACOM, ISDN CONTROLLER, PQFP100 |
| YTD436 | ISDN BRI controller with S/T ref. pt. analog D/R(带S/T基准和模拟D/R的ISDN BRI控制器) |
| YTD439-S | DATACOM, DIGITAL SLIC, PQFP100 |
| YTD439 | Shielded Paired Cable; Number of Conductors:4; Conductor Size AWG:22; No. Strands x Strand Size:Solid; Jacket Material:Polyolefin; Number of Pairs:2; Impedance:150ohm; Leaded Process Compatible:Yes; Voltage Nom.:300V RoHS Compliant: Yes |
相关代理商/技术参数 |
参数描述 |
|---|---|
| YTD436 | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:ISTC ISDN BRI controller with S/T ref. pt. analog D/R |
| YTD439 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:ISDN BRI controller for Terminal Equipment with built-in DSU |
| YTDH-62S0-000 | 制造商:ITT Interconnect Solutions 功能描述:YTDH-62S0-000 - Bulk |
| YT-DSP2 | 制造商:AREXX 功能描述:YETI DISPLAY EXPANSION |
| YTE-102-02-F-5-500 | 制造商:Samtec Inc 功能描述:ELEVATED 2MM C.L. SOCKETS - Bulk |
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