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參數(shù)資料
| 型號(hào)： | RXM-622 |
| 廠商： | Vectron International, Inc. |
| 英文描述： | SONET/SDH Fiber-Optic Receiver Module(SONET/SDH 光纖接收模塊) |
| 中文描述： | 的SONET / SDH光纖接收模組（SONET / SDH的光纖接收模塊） |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 366K |
| 代理商： | RXM-622 |
RXM-622 SONET/SDH Receiver Module
Product Data Sheet
Vectron International 166 Glover Avenue Norwalk CT 06856-5160 Tel: 1-88-VECTRON-1 www.vectron.com
2
Functional Overview
This highly integrated module converts a 622 Mb/s
fiber-optic NRZ signal to differential PECL data outputs.
A PECL flag alerts the user to a loss of signal condition
when the optical input falls below an acceptable level.
A single +5 Volt supply provides bias for the module’s
preamplifier, and Quantizer. The photodiode may be
biased with -5 Volts or Grounded. All elements are
integrated into fiber-coupled 1.3” X 0.635” 20 pin DIL
package. The RXM-622 footprint and pinout are
industry common for ease of integration.
The optical signal is coupled through a short length of
50
μ
m multimode or single mode optical fiber to a
hermetic module which encases an InGaAs PiN-
photodiode and preamplifier. The PiN-photodiode
converts the optical signal to an electrical current. The
signal is then converted to a voltage and amplified by a
low noise transimpedance amplifier.
Further gain is provided by the quantizer, which also
provides a Flag output when the optical signal falls
below an acceptable level.
Figure 1. RXM-622 Functional Block Diagram
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