Product Overview

The LR-12-A-M is a 12 GHz bandwidth amplified PIN photodiode receiver module designed for RF over fiber, antenna remoting, and broadband RF signals transmission applications using single mode optical fiber.

The LR-12-A-M utilizes a wide bandwidth, low distortion PIN photodiode plus a high-gain linear Trans-Impedance Amplifier (TIA) that provides optical to RF conversion to the frequency range beyond 12 GHz. The LR-12-A-M is a highly linear O/E converter that can be used for every type of analog and digital signal. This compact receiver module can provide users with status monitoring through an RS-232 I/O interface. When the LR-12-A-M RF over fiber receiver module is linked with the LT-12-M lightwave transmitter module, the combination provides and excellent choice for ultra-wideband RF to fiber conversion applications.

Applications

• Wideband RF over Fiber
• Optical Communications to 12.5 Gb/s
• Wimax/LTE/4 G Back Haul
• RF/IF Signal Distribution
• Satellite Communication
• Antenna Remoting

Features

• Wide Bandwidth, 0.01 GHz to 12 GHz
• High TIA Gain of 500
• Highly Linear for Analog Signal Transmission
• Large Dynamic Range
• Low Noise
• Status Monitoring: RS-232 (standard)

Feature Name	Description
Optical Specifications
Operating Wavelength	1250 nm to 1650 nm
Optical Input Level	+3 dBm max.
Repsonsitivity	0.85 A/W @ 1550 nm typ.
Trans-Impedance Gain	500 typ.
Group Delay	±7.0 ps
Optical Return Loss	-30.00 dB typ.
2nd Harmonics Distortion	-70.0 dBc max.
3rd Harmonics Distortion	-75.0 dBc max.
Optical PDL @ 1550 nm	0.05 dB typ., 0.1dB max.
Electrical Specifications
Useful Bandwidth	0.005 GHz to 15 GHz
S21 3 dB Bandwidth	11 GHz min., 12 GHz typ.
S22 Characteristics	< -10 dB to 10 GHz typ.
Output Coupling	AC Coupled
RF Impedence	50 Ω
Ripple over Bandwidth	±1.0 dB
Sensitivity	-19 dBm
Mechanical Specifications
Operating Temperature	-40° C to +70° C
Storage Temperature	-55° C to +85° C
Power Supply Requirements	+12 V DC, 500 mA max.,
Optical Connectors	SC/APC, FC/APC Optional
RF Connector	K Connector Female
DC Connector	DB-9 Male
Local Alarm	LED: Optional Input Power
Remote Alarms	RS-232 Interface (Standard)
Dimensions	145 mm x 75 mm x 28 mm
Accessories Included	110 V - 240 V AC Adaptor and RS-232 Cable
Housing	Precision Machined Aluminum, Anodized Surface