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參數(shù)資料
| 型號： | FW801A |
| 英文描述： | Low-Power PHY IEEE 1394A-2000 One-Cable Transceiver/Arbiter Device |
| 中文描述： | 低功耗PHY的IEEE 1394A端口，2000年一電纜收發(fā)器/仲裁器裝置 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 378K |
| 代理商： | FW801A |
Data Sheet, Rev. 1
June 2001
FW801A Low-Power PHY
IEEE
1394A-2000
One-Cable Transceiver/Arbiter Device
Agere Systems Inc.
9
Signal Information
(continued)
Table 1. Signal Descriptions (continued)
* Active-low signals are indicated by “/” at the beginning of signal names, within this document.
Pin
Signal
*
TPB0
Type
Name/Description
28
Analog I/O
Portn, Port Cable Pair B.
TPBn is the port B connection to the twisted-pair
cable. Board traces from each pair of positive and negative differential
signal pins should be kept matched and as short as possible to the external
load resistors and to the cable connector.
Analog I/O
Portn, Twisted-Pair Bias.
TPBIAS provides the 1.86 V nominal bias
voltage needed for proper operation of the twisted-pair cable drivers and
receivers and for sending a valid cable connection signal to the remote
nodes.
—
Digital Power.
V
DD
supplies power to the digital portion of the device.
32
TPBIAS0
5, 16, 22,
39
25, 33, 34
V
DD
V
DDA
—
Analog Circuit Power.
V
DDA
supplies power to the analog portion of the
device.
Digital Ground.
All V
SS
signals should be tied to the low-impedance
ground plane.
Analog Circuit Ground.
All V
SSA
signals should be tied together to a low-
impedance ground plane.
Crystal Oscillator.
XI and XO connect to a 24.576 MHz parallel resonant
fundamental mode crystal. Although, when a 24.576 MHz clock source is
used, it can be connected to XI with XO left unconnected. The optimum
values for the external shunt capacitors are dependent on the specifica-
tions of the crystal used.
It is suggested that two 12 pF shunt capacitors
be used for a crystal with a specified
7
pF loading capacitance. For more
details, see Crystal Selection Considerations in the Application Informa-
tion section.
12, 15, 21,
40, 47
26, 27, 35,
36
43
V
SS
—
V
SSA
—
XI
—
44
XO
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| FW80200M400 | Microprocessor |
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相關(guān)代理商/技術(shù)參數(shù) |
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| FW801A-DB | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power PHY IEEE 1394A-2000 One-Cable Transceiver/Arbiter Device |
| FW801BF | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power PHY 1394a-2000 One-Cable Transceiver/Arbiter Device |
| FW801BF-09-DB | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power PHY 1394a-2000 One-Cable Transceiver/Arbiter Device |
| FW802 | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power PHY IEEE 1394A-2000 Two-Cable Transceiver/Arbiter Device |
| FW80200M400 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microprocessor |
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