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STHS4257A bảng dữ liệu(PDF) 8 Page - STMicroelectronics

tên linh kiện STHS4257A
Giải thích chi tiết về linh kiện  IEEE 802.3af PoE Powered Device (PD) interface controller with integrated signature resistor
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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Obsolete
Product(s)
- Obsolete
Product(s)
Summary description
STHS4257A, STHS4257A1, STHS4257L, STHS4257L1
8/18
Figure 4.
Application circuit overview
1.
STHS4257A1 and STHS4257L1 devices only. To disable signature, tie this pin to GND.
2.
This configuration uses either data wires or spare wires for DC power.
Data to Ethernet Physical Layer Device
100
k
Ω
100µF,
100V
+
0.1µF,
100V
To DC/DC
Converter
Data to Ethernet Physical Layer Device
RCLASS
SMAJ58A
RCLASS
STHS4257A/L
STHS4257A1/L1
VIN
GND
VOUT
AI12203b
2x DF01S
RX
Pair
Spare
Pair
Spare
Pair
RJ-45
TX
Pair
PWRGD
SIGDISA
(1)
C1
C2


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