參數(shù)資料
型號(hào)： HFBR-2515B
英文描述： Fiber Optic Receiver for PROFIBUS Applications
中文描述： 光纖接收器用于PROFIBUS應(yīng)用
文件頁(yè)數(shù)： 2/16頁(yè)
文件大?。?/td> 446K
代理商： HFBR-2515B
10
Table 1. Pinout Table
Pin
Symbol
Functional Description
Mounting Pins The mounting pins are provided for transceiver mechanical attachment to the circuit board.
They are embedded in the nonconductive plastic housing and are not connected to the
transceiver internal circuit, nor is there a guaranteed connection to the metallized housing
in the EM and FM versions. They should be soldered into plated-through hole on the
printed circuit board.
1VEER
Receiver Signal Ground
Directly connect this pin to receiver signal ground plane. (For HFBR-53D3, VEER = VEET)
2
RD+
Receiver Data Out
RD+ is an open-emitter output circuit. Terminate this high-speed differential PECL output
with standard PECL techniques at the follow-on device input pin.
3RD–
Receiver Data Out Bar
RD– is an open-emitter output circuit. Terminate this high-speed differential PECL output
with standard PECL techniques at the follow-on device input pin.
4
SD
Signal Detect
Normal optical input levels to the receiver result in a logic “1” output, VOH, asserted.
Low input optical levels to the receiver result in a fault condition indicated by a logic “0”
output VOL, deasserted.
Signal Detect is a single-ended PECL output. SD can be terminated with standard PECL
techniques via 50
W to V
CCR - 2 V. Alternatively, SD can be loaded with a 270
W resistor to
VEER to conserve electrical power with small compromise to signal quality. If Signal Detect
output is not used, leave it open-circuited.
This Signal Detect output can be used to drive a PECL input on an upstream circuit, such
as, Signal Detect input or Loss of Signal-bar.
5VCCR
Receiver Power Supply
Provide +5 V dc via the recommended receiver power supply filter circuit.
Locate the power supply filter circuit as close as possible to the VCCR pin.
6VCCT
Transmitter Power Supply
Provide +5 Vdc via the recommended transmitter power supply filter circuit.
Locate the power supply filter circuit as close as possible to the VCCT pin.
7TD–
Transmitter Data In-Bar
Terminate this high-speed differential PECL input with standard PECL techniques at the
transmitter input pin.
8
TD+
Transmitter Data In
Terminate this high-speed differential PECL input with standard PECL techniques at the
transmitter input pin.
9VEET
Transmitter Signal Ground
Directly connect this pin to the transmitter signal ground plane.
Figure 2. Pin-Out
1 = V
EER
2 = RD+
3 = RD–
4 = SD
5 = V
CCR
6 = V
CCT
7 = TD–
8 = TD+
9 = V
EET
TOP VIEW
NIC
RX
TX
NIC = NO INTERNAL CONNECTION (MOUNTING PINS)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HFBR-2515BFZ 功能描述:光纖發(fā)射器、接收器、收發(fā)器 Fiber Optic Receiver PROFIBUS 1.5MBd RoHS:否 制造商:Omron Electronics 產(chǎn)品:Transmitters 數(shù)據(jù)速率:3.5 Gbps 波長(zhǎng):850 nm 最大工作溫度: 最小工作溫度: 封裝 / 箱體: 封裝:
HFBR-2515BZ 功能描述:光纖發(fā)射器、接收器、收發(fā)器 PROFIBUS 1.5MBd ST R x RoHS RoHS:否 制造商:Omron Electronics 產(chǎn)品:Transmitters 數(shù)據(jù)速率:3.5 Gbps 波長(zhǎng):850 nm 最大工作溫度: 最小工作溫度: 封裝 / 箱體: 封裝:
HFBR2521 制造商:Hewlett Packard Co 功能描述:
HFBR-2521 功能描述:光纖發(fā)射器、接收器、收發(fā)器 VERSATILE LINK HORIZ 5MBd RCVR RoHS:否 制造商:Omron Electronics 產(chǎn)品:Transmitters 數(shù)據(jù)速率:3.5 Gbps 波長(zhǎng):850 nm 最大工作溫度: 最小工作溫度: 封裝 / 箱體: 封裝:
HFBR-2521ET 制造商:AVAGO 制造商全稱(chēng):AVAGO TECHNOLOGIES LIMITED 功能描述:Versatile Link The Versatile Fiber Optic Connection
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