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參數(shù)資料
| 型號： | HFCT-5305 |
| 英文描述： | Gigabit Ethernet: 1.25 GBd 1300 nm Laser Transceiver in Low Cost 1 x 9 Package Style |
| 中文描述： | 千兆位以太網(wǎng)：1.25 GBd 1300 nm激光收發(fā)器的低成本1 × 9封裝形式 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 178K |
| 代理商： | HFCT-5305 |
570
Table 1. Pinout Table
Pin
Symbol
Mounting Studs
Functional Description
The mounting studs are provided for transceiver mechanical attachment to the circuit
board, they are embedded in the nonconductive plastic housing and are not tied to the
transceiver internal circuit. They should be soldered into plated-through holes on the
printed circuit board.
Receiver Signal Ground
Directly connect this pin to receiver signal ground plane.
Receiver Data Out
See recommended circuit schematic.
Receiver Data Out Bar
See recommended circuit schematic.
Signal Detect
Normal optical input levels to the receiver result in a logic “1” output.
Low optical input levels to the receiver result in a fault condition indication shown by
a logic “0” output.
Signal Detect is a single-ended, low-power, PECL output. Since SD is a low-power
PECL output, complete the interconnection of SD output with other PECL inputs using
a 10 k
pull-down resistor to V
EE
to allow biasing of this interconnection. Do not load
this SD output with standard PECL, 50
to V
CC
– 2 V, termination. 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.
Receiver Power Supply
Provide +5 V dc via the recommended transmitter power supply filter circuit.
Locate the power supply filter circuit as close as possible to the V
CCR
pin.
Transmitter Power Supply
Provide +5 V dc via the recommended transmitter power supply filter circuit.
Locate the power supply filter circuit as close as possible to the V
CCT
pin.
Transmitter Data In Bar
See recommended circuit schematic.
Transmitter Data In
See recommended circuit schematic.
Transmitter Signal Ground
Directly connect this pin to the transmitter signal ground plane.
1
V
EER
2
RD+
3
RD–
4
SD
5
V
CCR
6
V
CCT
7
TD–
8
TD+
9
V
EET
Figure 1. Pinout.
1
2
3
4
5
6
7
8
9
TOP VIEW
N/C
N/C
RECEIVER SIGNAL GROUND
RECEIVER DATA OUT
RECEIVER DATA OUT BAR
SIGNAL DETECT
RECEIVER POWER SUPPLY
TRANSMITTER POWER SUPPLY
TRANSMITTER DATA IN BAR
TRANSMITTER DATA IN
TRANSMITTER SIGNAL GROUND
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