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參數(shù)資料
| 型號(hào)： | PD64012 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 12-channel PoE Manager |
| 中文描述： | 12通道供電管理 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 496K |
| 代理商： | PD64012 |
PD64012
12-CHANNEL PoE MANAGER
Applications
The PD64012 may be integrated into a number of applications, ranging from daughter boards to full integration into
Ethernet switches. Examples of such applications are:
Integrated directly in a switch – facilitates the entire PoE concept, by including the ASIC(s) on the main switch PCB.
Daughter board add-on – in which the ASIC is integrated into a small PCB for PoE, mounted on top of the switch’s
main PCB.
Midspan units – stand alone devices, installed between the Ethernet switch and powered devices (telephone,
camera, wireless LAN, etc..). These Midspan units include the PD64012 ASIC as a PoE control element, to inject
power over the communication lines.
Figures 7 thru 10 provide detailed schematic diagrams for various applications of the PD64012.
To
Opto
Couplers
R
R
R
R
VPeri
MISO
SCK
CS_0
CS_1
MOSI
V
Ex_Reg
ADC2P5
Reset
SDA
SCL
Disable_Ports
V
100n
45.3k
2R
Vport_Pos_1
Vport_Neg_1
Vport_Pos
Vport_Neg
Vport_Sense
Vport_Pos
Vport_Neg
Vport_Sense
Vport_Pos_12
Vport_Neg_12
x12
x12
+48VMain
VPeri
Sense_Neg
SPI
Communication
Bus
R1
R2
R3
R4
ASIC_INI
I2C_INI
Figure 7 - Single-port Application with AC Disconnect Support
Vmain
Ex_Reg
Ref_Port_Neg
Vperi
100n
Vcc2P5
ADC2P5
IRef
VMain
3.3V (VPeri)
4.7u
100n
100n
100n
1u
4
2
47n
100n
CP_In
CP_Out
24.9K
2.5V
Figure 8 - Typical Power Filtering
www.powerdsine.com
06-0003-058 (Rev. 2.8) / 5 August 2004
PowerDsine 2003
Information in this document subject
to change without prior notice.
13
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