參數(shù)資料
型號(hào)： 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(yè)數(shù)： 11/24頁(yè)
文件大小： 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.
11
Application Information
(continued)
5-7654 (F)
Figure 4. Typical Port Termination Network
1394 Application Support Contact Information
E-mail:
1394support@agere.com
Crystal Selection Considerations
The FW801A is designed to use an external 24.576 MHz crystal connected between the XI and XO terminals to pro-
vide the reference for an internal oscillator circuit.
IEEE
1394a-2000 standard requires that FW801A have less than
±100 ppm total variation from the nominal data rate, which is directly influenced by the crystal. To achieve this, it is
recommended that an oscillator with a nominal 50 ppm or less frequency tolerance be used.
The total frequency variation must be kept below
±
100 ppm from nominal with some allowance for error introduced
by board and device variations. Trade offs between frequency tolerance and stability may be made as long as the
total frequency variation is less than
±
100 ppm.
TPBIAS0
TPA0+
TPA0–
TPB0+
TPB0–
36
35
34
33
32
31
30
29
28
56
56
56
56
5 k
220 pF
0.33
μ
F
1
3
5
2
4
6
IEEE
1394-1995 STANDARD
CONNECTOR
VG
VP
CABLE
POWER
27
26
25
V
DDA
V
DDA
V
SSA
V
SSA
V
DDA
V
SSA
V
SSA
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FW801A-DB 制造商:AGERE 制造商全稱(chēng):AGERE 功能描述:Low-Power PHY IEEE 1394A-2000 One-Cable Transceiver/Arbiter Device
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FW801BF-09-DB 制造商:AGERE 制造商全稱(chēng):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(chēng):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(chēng):未知廠家 功能描述:Microprocessor
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