7820R Optical Receiver 5-200 MHz RFoG Return Path DATASHEET | MARCH 2012 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). Applications Video Signal Distribution in RFoG and FTTx nodes Video Overlay in Passive Optical Networks (PON). 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. 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). 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 RoHS Compliant Frequency Range Internal Prorietary Impedance Match Circuitry (75Ω) Robust Small Package with Single-Mode Fiber Pigtail and Connector Options Wide Operating Case Temp Range, to + 85OC Limits 5 – 200 MHz Noise -40O 5 – 85MHz Version 0.75 pA/√Hz (typ) 5 – 200MHz Version 1.0 pA/√Hz (typ) DSO (20% OMI/tone) -60 dBc (typ) DTO (20% OMI/tone) -50 dBc (typ) Optical Input Power Up to -10dBm Wavelength Power Consumption 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. 7820R Optical Receiver 5-200 MHz RFoG 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 -40 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 Optical Power 5 – 85MHz Version 5 – 200MHz Version PIN -- -- -10 -7 dBm RLOPT 40 -- -- dB ICCA ICCP --- --- 100 1 mA mA Wavelength λ 1260 1310/1550 1620 nm Responsivity -- --- >0.8 at 1310 nm >0.9 at 1550 nm --- mA/mW mA/mW PDI Monitor Voltage VMON -- 10 -- V/mA Dissipation PDISS -- -- 0.5 W Symbol Min Typ Max Unit BW 5 -- 85 MHz G 36 29 -- 38 31 dB GST -0.5 -- +0.5 dB -- -- 1 1.2 dBpk-pk -- -- 1 2 dB RFOUT 37 35 -- 39 37 dBmV/ch Optical Return Loss DC Power +5V Amp Bias, (Pin 2) +12V PD Bias, (Pin 6) RF Characteristics Parameter Frequency Response Gain (Ref @ 5MHz) 5 – 85MHz Version 5 – 200MHz Version Gain Stability (-40C to + 85C) Ripple Gain Tilt (3) RF Output Level (2) 5-85 MHz Version 5 – 200 MHz Version | 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. 7820R Optical Receiver 5-200 MHz RFoG Return Path FIBER OPTICS DATASHEET | MARCH 2012 RF Characteristics (continued) Parameter Symbol Min Typ Max Unit Output Return Loss RL -- -- -16 dB Equivalent Input Noise 5 – 85MHz Version 5 – 200MHz Version EIN -- 0.75 1.0 0.9 1.30 pA/√Hz Discrete Second-Order Discrete Third Order (1,2) (1,2) DSO -- -60 -50 dBc DTO -- -70 -60 dBc (1). Two laser test at 1310 nm/1550 nm. 40% OMI/tone (before combined). Distortion products measured at 40 and 85 MHz. (2). 5 – 85MHz Version, Optical Input = -10dBm, OMI = 20% (after combined) 5 – 200MHz Version, Optical Input = -7dBm, OMI = 20% (after combined) (3). Tilt is defined as the delta between 5 – 85MHz for 7820R-085 and 5 – 200MHz for 7820R-200. 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. 7820R Optical Receiver 5-200 MHz RFoG 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. 7820R Optical Receiver 5-200 MHz RFoG 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. 7820R Optical Receiver 5-200 MHz RFoG Return Path FIBER OPTICS DATASHEET | MARCH 2012 Ordering Code Definitions 7820R-xxx-yy-zzz Family Name 7820R: RFoG Return Path Optical Receiver Bandwidth xxx = 085: 5 – 85 MHz xxx = 200: 5 – 200 MHz Optical Connector yy = FA: FC/APC yy = SA: SC/APC yy = SU: SC/UPC yy = LU: LC/UPC yy = LA: LC/APC 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: 7820R-085-SA-115: RFoG Return Path Receiver, 5-85 MHz, SC/APC Connector, 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.