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

7820C CATV Optical Receiver
200 MHz HFC Return Path
DATASHEET | MARCH 2012
Applications
Video Signal Distribution in HFC and
FTTx nodes
Features
5 MHz – 200 MHz Bandwidth Supports
the Return Path CATV Application.
Excellent RF Frequency and Distortion
Characteristics for High Linearity.
Low Noise (2 pA/√Hz typ.) Low Power
Dissipation (0.85 W max.) as well as
High RF Output.
RoHS Compliant
Internal Prorietary Impedance Match
Circuitry (75Ω)
Robust Small Package with Single-Mode
Fiber Pigtail and Connector Options
Wide Operating Case Temp Range, -30^O
to + 85^OC
FIBER OPTICS
The 7820C CATV 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 video
broadcast options, and delivers the corresponding RF electrical output in the 200
MHz HFC return path bandwidth.
The 7820C exhibits excellent distortion performance with values well above
standards over the entire bandwidth and case temperature specifications (5 MHz
– 200 MHz, -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 with
very low noise performance value, typically less than 2 pA/√Hz.
The 7820C Return Path HFC CATV optical receiver can be used in both 1310 nm
and 1550 nm applications being useful at different points of a given network.
The 7820C 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
DTO
DSO
Optical Input Power
Wavelength
Power Consumption
Limits
5 – 200 MHz
2 pA/√Hz (typ)
-70 dBc (typ)
-65 dBc (typ)
Up to +1dBm
1260 – 1620 nm
0.85 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.