7820R Datasheet, PDF (1/6 Pages) Emcore Corporation – Optical Receiver

7820R Optical Receiver
5-200 MHz RFoG Return Path
DATASHEET | MARCH 2012
Applications
Video Signal Distribution in RFoG and
FTTx nodes
Video Overlay in Passive Optical
Networks (PON).
Features
5 MHz-200 MHz Bandwidth Supports the
Return Path Application.
Excellent RF Frequency, High RF
Output.
Low Noise (<1.0 pA/√Hz typ.) Low
Power Dissipation (0.5 W max).
RoHS Compliant
Internal Prorietary Impedance Match
Circuitry (75Ω)
Robust Small Package with Single-Mode
Fiber Pigtail and Connector Options
Wide Operating Case Temp Range, -40^O
to + 85^OC
FIBER OPTICS
The 7820R RFoG return path optical receiver is a single-mode fiber pigtailed
module featuring a low-noise, impedance-matched broadband photodiode and RF
amplification.
The device receives optical analog and/or digital signals for a range of return path,
and delivers the corresponding RF electrical output.
The 7820R exhibits excellent noise performance with values well above standards
over the entire 200MHz bandwidth and case temperature specifications (-40°C to
+85°C).
Moreover, the proprietary impedance-match circuitry between the photodetector and
RF amplification stages resolves a number of OEM design obstacles. The device’s
noise performance is typically less than 0.75pA/√Hz for the 85MHz version and
1pA/√Hz for the 200MHz version.
The 7820R RFoG return path optical receiver can be used in the optical wavelength
range from 1260nm – 1620nm applications.
The 7820R is compliant with all criteria of the Restriction of the Use of Hazardous
Substances in Electrical and Electronic Equipment (RoHS) guidelines 2002/95/EC.
Performance Highlights
Parameter
Frequency Range
Noise
5 – 85MHz Version
5 – 200MHz Version
DSO (20% OMI/tone)
DTO (20% OMI/tone)
Optical Input Power
Wavelength
Power Consumption
Limits
5 – 200 MHz
0.75 pA/√Hz (typ)
1.0 pA/√Hz (typ)
-60 dBc (typ)
-50 dBc (typ)
Up to -10dBm
1260 – 1620 nm
0.5 W
| REV 2012.03
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.