7820A CATV Optical Receiver
DATASHEET | MARCH 2012
Video Signal Distribution in HFC and
Video Overlay in Passive Optical
5 Wide 40 MHz – 1002 MHz Bandwidth
Supports as Many as 110 CATV Analog
Channels or a Combination of Analog
and Digital Channels Including HDTV
Excellent RF Frequency and Distortion
Characteristics for High Linearity.
Low Noise (4.5 pA/√Hz typ.) Low Power
Dissipation (0.75 W max.) as well as
High RF Output.
Internal Prorietary Impedance Match
Robust Small Package with Single-Mode
Fiber Pigtail and Connector Options
Wide Operating Case Temp Range, -30O
to + 85OC
The 7820A CATV Optical Receiver is a single-mode fiber pigtailed module
featuring a low-noise, impedance-matched broadband photodiode and RF
The device receives optical analog and/or digital signals for a range of video
broadcast options, and delivers the corresponding RF electrical output. The wide
bandwidth supports the delivery of up to 110 CATV analog signals or a
combination of analog and digital channels (80/30 for example), including HDTV
The 7820A exhibits excellent distortion performance with values well above
standards over the entire bandwidth and case temperature specifications (40 MHz
– 1002 MHz, -30 °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 4.5 pA/√Hz.
The 7820A CATV optical receiver can be used in both 1310 nm and 1550 nm
applications being useful at different points of a given network.
The 7820A is compliant with all criteria of the Restriction of the Use of Hazardous
Substances in Electrical and Electronic Equipment (RoHS) guidelines
CTB (79ch NTSC)
CSO (79ch NTSC)
Optical Input Power
40 – 1002 MHz
-80 dBc (typ)
-68 dBc (typ)
Up to +3dBm
1260 – 1620 nm
| 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.