參數(shù)資料
型號(hào): PDI1394P24
廠商: NXP Semiconductors N.V.
英文描述: 2-port 400 Mbps physical layer interface(2端口 400 Mbps物理層接口)
中文描述: 2端口400 Mbps的物理層接口(2端口400 Mbps的物理層接口)
文件頁數(shù): 18/39頁
文件大小: 188K
代理商: PDI1394P24
Philips Semiconductors
Objective specification
PDI1394P24
2-port 400 Mbps physical layer interface
2000 Jun 23
18
17.0
APPLICATION INFORMATION
390K
PDI1394P24
TPBIAS
CPS
220pF
TPAn+
TPAn–
TPBn+
TPBn–
CABLE
PAIR A
CABLE
PAIR B
CABLE PORT
SV01825
0.3–1.0
μ
F
56
56
56
56
CABLE
POWER
PAIR
5 k
OUTER SHIELD
TERMINATION
The IEEE Std 1394–1995 calls for a 250 pF capacitor, which is a non-standard component value. A 220 pF capacitor is recommended.
Figure 4.
Twisted pair cable interface connections
OUTER CABLE SHIELD
0.001
μ
F
0.01
μ
F
1 M
CHASSIS GROUND
SV01748
Figure 5.
Typical outer shield termination
SV01805
3
6
DGND (AGND)
DVDD (AVDD)
0.1
μ
F
0.001
μ
F
V
DD
Use one of these networks per side for all digital power and ground
pins and one per side for all analog power and ground pins. Place
the network as close to the PHY as possible.
Figure 6.
Power supply decoupling network
10 k
SV01806
LPS
LPS
LINK POWER
SQUARE WAVE INPUT
10 k
Figure 7.
Non-isolated connection variations for LPS
7.5 k
SV01819
LPS
SQUARE WAVE SIGNAL
3.3nF
24 k
PHY V
DD
Figure 8.
Isolated circuit connection for LPS
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