nec's 80 m ingaas pin-pd in coaxial package for 155mb/s and 622 mb/s applications nr7800 series features ? small dark current: i d = 0.1 na ? high speed response: fc = 2.5 ghz min. ? high sensitivity: s = 0.89 a/w at = 1310 nm s = 0.94 a/w at = 1550 nm ? low operating voltage: v r = 5 v ? coaxial module with single mode fiber (smf) or gi-50 fiber ? with sc connector: standard, fc connector: option (refer to ordering information) nec's nr7800 series are ingaas pin photo diode (pin-pd) coaxial modules with optical fiber pigtail. these modules are designed for long wavelength optical communication systems and are ideal as recievers for synchronous digital hierarchy (sdh) system, stm-4 and stm-1, itu-t recommendations. description part number nr7800 series symbols parameters and conditions units min typ max i d dark current, v r = 5 v, t c = 25o c na 0.1 1.0 v r = 5 v 20 c t terminal capacitance, v r = 5 v, f = 1 mhz, t c = 25o c pf 1.0 1.5 s sensitivity, v r = 5 v, = 1310 nm a/w 0.78 0.89 v r = 5 v, = 1550 nm 0.80 0.94 ? s t temperature dependence of sensitivity, % -5 5 v r = 5 v, = 1550 nm ? s p polarization dependence of sensitivity, % -2.5 2.5 v r = 5 v, = 1550 nm, t c = 25o c ? s w wavelength dependence of sensitivity, % -2.5 2.5 v r = 5 v, = 1520 to 1560 nm, t c = 25o c fc cut-off frequency, v r = 5 v, t c = 25o c ghz 2.5 orl optical return loss, smf db 30 gi-50 fiber 28 electro-optical characteristics (t c = 40 c to +85o c, unless otherwise specified) california eastern laboratories
dark current, i d (na) temperature dependence of dark current absolute maximum ratings 1 (t c = 25 c, unless otherwise specified) symbols parameters units ratings v r reverse voltage v 20 i f forward current ma 10 p in optical input power mw 8 t c operating case temp. c -40 to +85 t stg storage temperature c -40 to +85 t sld lead soldering temp. c 260 (10 sec.) rh relative humidity % 85 (noncondensing) wavelength dependence of quantum efficiency sensitivity (relative value), ? s/s (%) operating case temperature, t c ( c) reverse voltage, v r (v) dark current, i d (na) reverse voltage dependence of dark current quantum efficiency, (%) wavelength, ( m) typical performance curves (t c = 25 c, unless otherwise specified) temperature dependence of sensitivity note: 1. operation in excess of any one of these parameters may result in permanent damage. nr7800 series 100 80 60 40 20 0 0.9 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 10 0 -10 -60 -40 -20 0 20 40 60 80 100 = 1310 nm t c = 75 c 25 c 0 c -25 c 50 c 10 1.0 0.1 0.01 0.001 10 0 20 v r = 5 v 10 1.0 0.1 0.01 0.001 -60 -40 -20 0 20 40 60 80 100 operating case temperature, t c ( c) remark:the graphs indicate nominal characteristics.
nr7800 series typical performance curves (t c = 25 c, unless otherwise specified) 1. anode (negative) 2. cathode (positive) 3. case remark:the graphs indicate nominal characteristics. nr7800bfp/fr outline dimensions (units in mm) frequency response response (db) frequency, f (ghz) reverse voltage dependence of terminal capacitance terminal capacitance, c t (pf) reverse voltage, v r (v) nr7800cp/cr 5 0.5 1 100 10 1 0.1 0.01 f = 1.0 mhz v r = 5 v = 1310 nm r l = 50 ? 0 5.0 2.5 12 9 6 3 0 -3 -6 -9 -12 -15 12.7 0.2 17.0 0.2 ?2.2 ?0.9 ?3.2 0.2 ?7.0 0.2 ?5.0 0.2 1.2 0.2 4.0 0.2 10.5 1.0 14.0 1.0 3.7 0.3 1.0 0.1 p.c.d. = ?2.0 7.2 0.3 24.7 1.0 4.0 0.5 3.2 3 2 1 1 3 2 ?0.45 0.05 2.2 3.5 0.5 optical fiber length: 1 m min 16.0 0.2 11.2 1.0 25.4 1.0 4.0 0.5 ?3.2 0.2 ?0.9 ?5.0 0.2 optical fiber length: 1 m min 3.5 0.5 14.0 1.0 0.5 0.5 0.1 ?0.45 0.05 3 2 1 1 3 2 7.0 0.2 12.0 0.1 8.5 0.2 2 ? ?2.5 4?r1.25 0.2 p.c.d. = ?2.0 1. anode (negative) 2. cathode (positive) 3. case
nr7800 series optical fiber characteristics parameter units specification smf gi-50 mode field diameter m 9.5 1? core diameter m? 50 3 cladding diameter m 125 2 125 2 maximum cladding noncircularity % 2 2 maximum core/cladding concentricity % 1.6 4.0 outer diameter mm 0.9 0.1 0.9 0.1 cut-off wavelength nm 1100 to 1270 ? minimum fiber bending radius mm 30 30 fiber length mm 1000 min 1000 min flammability ul1581 vw-1 35 2 mm fiber length: 1000 mm min connector 8.99 0.5 mm 5 2 mm part number flange type fiber type available connector 1 nr7800fp-bc flat mount flange smf with fc-upc connector nr7800fp-cc with sc-upc connector nr7800fr-bb gi-50 fiber with fc-spc connector nr7800fr-cb with sc-spc connector nr7800cp-bc vertical mount smf with fc-upc connector nr7800cp-cc flange with sc-upc connector NR7800CR-BB gi-50 fiber with fc-spc connector nr7800cr-cb with sc-spc connector note: 1. sc connector: standard fc connector: option ordering information life support applications these nec products are not intended for use in life support devices, appliances, or systems where the malfunction of these prod ucts can reasonably be expected to result in personal injury. the customers of cel using or selling these products for use in such applications do so at their own risk and agree to fully indemnify cel for all damages resulting from such improper use or sale. a business partner of nec com p ound semiconductor devices, ltd . 04/02/2003
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