7820C CATV Optical Receiver 200 MHz HFC Return Path DATASHEET | MARCH 2012 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). Applications Video Signal Distribution in HFC and FTTx nodes Features 5 MHz – 200 MHz Bandwidth Supports the Return Path CATV Application. 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. Excellent RF Frequency and Distortion Characteristics for High Linearity. 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. Low Noise (2 pA/√Hz typ.) Low Power Dissipation (0.85 W max.) as well as High RF Output. Performance Highlights RoHS Compliant Parameter Internal Prorietary Impedance Match Circuitry (75Ω) Robust Small Package with Single-Mode Fiber Pigtail and Connector Options Wide Operating Case Temp Range, -30O to + 85OC Frequency Range Limits 5 – 200 MHz Noise 2 pA/√Hz (typ) DTO -70 dBc (typ) DSO -65 dBc (typ) Optical Input Power Up to +1dBm Wavelength Power Consumption 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. 7820C CATV Optical Receiver 200 MHz HFC Return Path FIBER OPTICS DATASHEET | MARCH 2012 Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter Symbol Min Max Unit Operating Case Temperature Range TCASE -30 85 °C Storage Temperature Range Tstg -40 85 °C Humidity at 85 °C RH -- 85 % Note: For all tables, typical values are performed at 25oC; min and max values are performance vs. temperature. Electrical/Optical Characteristics Parameter Symbol Min Typ Max Unit PIN -- -- +1 dBm RLOPT 40 -- -- dB ICCA ICCP --- --- 160 3 mA mA λ 1260 1310/1550 1620 nm -- --- >0.8 at 1310 nm >0.9 at 1550 nm --- mA/mW mA/mW PDI Monitor Voltage VMON -- 1.0 -- V/mA Dissipation PDISS -- -- 0.85 W Min Typ Max Unit Optical Power Optical Return Loss DC Power +5V Amp Bias, (Pin 2) +12V PD Bias, (Pin 6) Wavelength Responsivity RF Characteristic Parameter Symbol Frequency Response BW 5 -- 200 MHz Gain (Ref @ 40MHz) G 28 -- 30 dB GST -0.5 -- +0.5 dB Ripple (5-200MHz) -- -- 1 1.2 dBpk-pk Gain Tilt -- -- 0 1 dB RFOUT 47 -- 49 dBmV/ch RL -- -- -16 dB Gain Stability (-30C to + 85C) RF Output Level (2) Output Return Loss (5-200 MHz) Equivalent Input Noise Discrete Second-Order Discrete Third Order (1) (1,2) EIN -- -- 2 pA/√Hz DSO -- -65 -55 dBc DTO -- -70 -60 dBc (1) Two laser test at 1310 nm/1550 nm. 40% OMI/tone. Total received optical power = 0 dBm. Distortion products measured at 40 and 200 MHz. (2) Optical Input = 0 dBm, OMI = 20% | 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. 7820C CATV Optical Receiver 200 MHz HFC Return Path DATASHEET | MARCH 2012 FIBER OPTICS Outline Drawing (dimensions are in inches & mm) | 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. 7820C CATV Optical Receiver 200 MHz HFC Return Path DATASHEET | MARCH 2012 FIBER OPTICS | 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. 7820C CATV Optical Receiver 200 MHz HFC Return Path FIBER OPTICS DATASHEET | MARCH 2012 Pin Definitions Pin Function 1 2 3 4 5 6 7 8 GND +5V GND RF OUT GND +12V PD MONITOR GND | 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. 7820C CATV Optical Receiver 200 MHz HFC Return Path FIBER OPTICS DATASHEET | MARCH 2012 Ordering Code Definitions 7820c-xxx-yy-zzz Family Name 7820C, HFC Return Path Optical Receiver Bandwidth xxx = 200: 5 – 200 MHz Optical Connector yy = FA: FC/APC yy = SA: SC/APC yy = SU: SC/UPC yy = LU: LC/UPC Fiber Length (L) zzz = 115: 1.15 ± 0.30m fiber zzz = 066: 0.66 ± 0.02m fiber zzz = 054: 0.54 ± 0.02m fiber Example: 7820C-200-SA-115: 200 MHz Return Path HFC Receiver, SC/APC, 1.15m Fiber | 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.