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

7820A CATV Optical Receiver
1 GHz
DATASHEET | MARCH 2012
Applications
Video Signal Distribution in HFC and
FTTx nodes
Video Overlay in Passive Optical
Networks (PON).
Features
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
Broadcast.
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.
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 7820A 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. 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
broadcast.
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
2002/95/EC.
Performance Highlights
Parameter
Frequency Range
CTB (79ch NTSC)
CSO (79ch NTSC)
Optical Input Power
Wavelength
Power Consumption
Limits
40 – 1002 MHz
-80 dBc (typ)
-68 dBc (typ)
Up to +3dBm
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.