- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385017 > TSB17BA1PW (Texas Instruments, Inc.) IEEE STD 1394b SINGLE-PORT CABLE TRANSCEIVER PDF資料下載
參數(shù)資料
| 型號： | TSB17BA1PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | IEEE STD 1394b SINGLE-PORT CABLE TRANSCEIVER |
| 中文描述： | IEEE標(biāo)準(zhǔn)的1394b單端口電纜收發(fā)器 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 218K |
| 代理商： | TSB17BA1PW |
SLLS568C JANUARY 2004 REVISED MARCH 2004
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
1394 Link
1394b PHY
Termination
and
Transformer
RJ45
UTP Cable
Termination
TSB17BA1
Figure 3. 1394b Cable Termination
signal coding
The signaling generated from a 1394b PHY is 8B/10B encoded. This means to send 8 bits of data requires the
transmission of 10 bits across the cable. The maximum frequency that is required to send 100 Mbits/s is a
fundamental frequency of 62.5 MHz (see the IEEE Std 1394b-2002 for more explanation).
connector pins
The current IEEE Std 1394b-2002 requires that the connection from 1394b PHY signal to the RJ45 connector
pin be:
TPB+ to RJ45 pin 1
TPB to RJ45 pin 2
TPA+ to RJ45 pin 7
TPA to RJ45 pin 8
There is a proposal to change the IEEE Std 1394b-2002 connection from 1394b PHY signal to the RJ45
connector pin to be the same as the 100baseT Ethernet. This allows use of more 100baseT Ethernet
components for 1394b connections. This changes the connections to:
TPB+ to RJ45 pin 1
TPB to RJ45 pin 2
TPA+ to RJ45 pin 3
TPA to RJ45 pin 6
It is anticipated that the change will be implemented into IEEE Std 1394b-2002, though it has not been ratified.
Therefore, it is recommended that all implementations utilize the new pinout running TPA+ to pin 3 and TPA
to pin 6. If a closed system is created, meaning the designer controls the electronics at both ends of the UTP5
cable, then using pins 7 and 8 can give as much as a 12-dB reduction in crosstalk rather than using pins 3 and
6. Please contact Texas Instruments for further details.
cable connection
The IEEE Std 1394b-2002 requires the output of a TPB port to be connected to the input of a TPA port when
connecting one device to a second device. In other words, it requires a crossover somewhere between the two
PHY ports. The 1394b standard further states that a UTP5 device incorporates logic that can automatically
implement this crossover in the logic. The TSB17BA1 does not contain this logic, therefore, the crossover must
be implemented external to the TSB17BA1.
It is recommended for users of the TSB17BA1 to:
Design the UTP5 connection to pins 1, 2 and 3, 6 as previously detailed.
Ship an Ethernet crossover cable with their devices.
The crossover cable connects:
Pin 1 on the near end of the cable to pin 3 on the far end of the cable
Pin 2 on the near end of the cable to pin 6 on the far end of the cable
Pin 3 on the near end of the cable to pin 1 on the far end of the cable
Pin 6 on the near end of the cable to pin 2 on the far end of the cable, thereby implementing the crossover.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TSB2122C | IF Filter |
| TSB41BA3AIGGM | IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER |
| TSC2100IDAR | PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH INTEGRATED STEREO AUDIO CODEC AND HEADPHONE/SPEAKER AMPLIFIER |
| TSC2300IPAGR | PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH AUDIO CODEC |
| TSC2301IGQZ | PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSB17BA1PWG4 | 功能描述:1394 接口集成電路 UTP5 Equalizer for 1394b PHYs RoHS:否 制造商:Texas Instruments 類型:Link Layer Controller 工作電源電壓: 封裝 / 箱體:LQFP 封裝:Tray |
| TSB18 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EURO TERMINAL BLOCKS |
| TSB1857CT A3 | 功能描述:兩極晶體管 - BJT PNP Transistor Low Vce sat RoHS:否 制造商:STMicroelectronics 配置: 晶體管極性:PNP 集電極—基極電壓 VCBO: 集電極—發(fā)射極最大電壓 VCEO:- 40 V 發(fā)射極 - 基極電壓 VEBO:- 6 V 集電極—射極飽和電壓: 最大直流電集電極電流: 增益帶寬產(chǎn)品fT: 直流集電極/Base Gain hfe Min:100 A 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PowerFLAT 2 x 2 |
| TSB19 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EURO TERMINAL BLOCKS |
| TSB2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EURO TERMINAL BLOCKS |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。