vectron international 166 glover avenue norwalk ct. 06856-5160 tel: 1-88-vectron-1 www.vectron.com product data sheet rxm-155 sonet/sdh fiber-optic receiver module the rxm-155 sonet/sdh fiber-optic receiver module features sonet oc-3 and sdh stm-1 compatible pecl data outputs single +5 volt supply pecl loss of signal flag operation at 1300 nm and 1550 nm -45 to +85c operation -34dbm minimum sensitivity wide dynamic range multi-sourced 20 pin dil footprint applications telecom receiver applications medium and long haul sonet/sdh @ 155 mb/s high performance datacom receiver applications atm @ 155 mb/s description vi?s rxm-155 is an integrated fiber-optic receiver module. it is powered by a single +5v power supply and is housed in a 20 pin dil package.it is ideally suited for sonet oc-3, sdh stm-1 and other 155 mb/s fiber- optic transmission applications that demand superior performance. it is available with a multi-mode fiber pigtail with either fc/pc,st or sc connector.
rxm-155 sonet/sdh receiver module product data sheet vectron international 166 glover avenue norwalk ct. 06856-5160 tel: 1-88-vectron-1 www.vectron.com 2 functional overview this highly integrated module converts a 155 mb/s fiber-optic nrz signal to differential pecl data outputs. a pecl flag alerts the user to a loss of signal condition when the optical input falls below an acceptable level. a single +5 volt supply provides bias for the module?s preamplifier, and quantizer. the photodiode may be biased with -5 volts or grounded. all elements are integrated into fiber-coupled 1.3? x 0.635? 20 pin dil package. the rxm-155 footprint and pinout are industry common for ease of integration. the optical signal is coupled through a short length of 50.0 m multimode or single mode optical fiber to a hermetic module which encases an ingaas pin- photodiode and preamplifier. the pin-photodiode converts the optical signal to an electrical current. the signal is then converted to a voltage and amplified by a low noise transimpedance amplifier. further gain is provided by the quantizer, which also provides a flag output when the optical signal falls below an acceptable level. figure 1. rxm-155 functional block diagram
rxm-155 sonet/sdh receiver module product data sheet vectron international 166 glover avenue norwalk ct. 06856-5160 tel: 1-88-vectron-1 www.vectron.com 3 figure 2. pin diagram (top view) table 1. pin function pin symbol function 7 data pecl data output. 9 data pecl complementary data output. 10 v d detector anode bias. connect to gnd or a -5v biased series resistor for received optical power monitoring. 1 11 v cc 5 volt supply voltage. 12 flag input signal level status. this pecl output switches low when the received optical power falls below the flag threshold. 14 flag complementary input signal status. pecl complement of flag. 1,2,3,6,8,13,15,16 gnd ground. 4,5,17,18,19,20 nc no user connection. 1. by connecting pin 10 to a -5 volt bias through a series resistor (e.g. 1 k ? ) received optical power can be monitored as a voltage drop across the resistor. absolute maximum ratings absolute maximum ratings are provided here as worst case and short duration exposure conditions only. exposure to conditions more severe than the absolute maximum ratings may result in permanent damage. exposure to conditions at the absolute maximum ratings for extended periods may also adversely affect device performance or reliability. functional operation of the device is not implied at these conditions. table 2. absolute maximum ratings parameter symbol minimum maximum units storage temperature range t s -40 85 c supply voltage v cc 0+6v pin detector bias v d -15 0 v lead soldering conditions 250/10 c/s pin 1 indicator top view 10 11 20
rxm-155 sonet/sdh receiver module product data sheet vectron international 166 glover avenue norwalk ct. 06856-5160 tel: 1-88-vectron-1 www.vectron.com 4 performance characteristics table 3. electrical performance parameter symbol minimum typical maximum units input signal rate f o 120 155.52 175 mb/s operating temperature t o -40 +85 c power supply voltage v cc 4.5 5.0 5.5 v pin detector bias voltage (pin10) v d -15 0 0 v power supply current i cc 200 ma data output levels 1 low high v ol v oh v cc - 1.95 v cc - 1.03 v cc - 1.63 v cc - 0.88 v v data output rise and fall times 2 t r, t f 275 375 575 ps received power level flag decreasing optical power increasing optical power los -37 -35 dbm dbm flag hysteresis hyst 2 db 1. measured with a load of r l = 50 ? to v cc - 2 v. see figures 3 and 4. ecl levels are specified for dc measurement, an additional tolerance of 50 mv should be included for dynamic measurements. 2. measured at 20% to 80% levels. figure 3. pecl interface
rxm-155 sonet/sdh receiver module product data sheet vectron international 166 glover avenue norwalk ct. 06856-5160 tel: 1-88-vectron-1 www.vectron.com 5 figure 4. ecl (ac coupled) interface figure 5. typical performance @ 155.52mhz table 4. optical performance parameter symbol minimum typical maximum units minimum average sensitivity 1 sens. -34.0 dbm maximum optical input 1 p max 0dbm input wavelength 1280 1580 nm 1. for a ber less than 1e-10. measured using a 2 23 - 1 pseudorandom word and a 50% average optical duty cycle and a 10 db extinction ratio.
rxm-155 sonet/sdh receiver module product data sheet vectron international 166 glover avenue norwalk ct. 06856-5160 tel: 1-88-vectron-1 www.vectron.com 6 qualification the rxm-155 has been designed to comply with the requirements of bellcore specifications gr-468- core, reliability assurance for optoelectronic devices and will be subject to a complete qualification test plan to demonstrate full compliance. all of the technologies used in the assembly of the module represent standard microelectronic and optical technologies that are used in similar products, and have extensive field reliability data. all components and technologies used in the optical receiver are backed by qualification data covering mechanical and environmental tests along with accelerated life tests. typical tests, test conditions and sample sizes are listed below. table 5. qualification plan test test method sample size physical dimensions mil-std-883, method 2016 11 mechanical shock mil-std-883, method2002, test b 11 vibration, variable frequency mil-std-883, method 2007, test a 11 lead solderability mil-std-883, method 2003 22 leeds lead integrity mil-std-883, method 2004 15 leeds temperature cycling -40c/85c, 300 cycles 11 high temperature aging 85c under bias, 2000 hours 11 damp bake 85c/85% rh/ 1000 hrs 11 low temperature storage -40c, 168 hours 11 esd mil-std-883,method 3015 3 destructive bond pull mil-std-883,method 2011 40 table 6. optical fiber characteristics parameter minimum typical maximum units fiber length 1000 mm fiber core 50 um fiber buffer 900 m
rxm-155 sonet/sdh receiver module product data sheet vectron international 166 glover avenue norwalk ct. 06856-5160 tel: 1-88-vectron-1 www.vectron.com 7 outline diagram figure 6. outline diagram ordering information standard modules are built with 50um mm fiber, with an outer jacket diameter of 900um. alternative fiber type, connector type and fiber lengths are available upon request. contact factory for specific details. table 7. part numbers fiber-optic connector 1 model number vi code number fc/pc rxm-155a 330018265 st rxm-155b 330003674 sc rxm-155c 330018276 1. other connectors or fiber requirements are available to meet specific application requirements.
rxm-155 sonet/sdh receiver module product data sheet vectron international 166 glover avenue norwalk ct. 06856-5160 tel: 1-88-vectron-1 www.vectron.com 8 notes: vectron international, inc. reserves the right to make changes to the product(s) and/or information contained herein without n otice. no liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or infor mation. usa: vectron international ? 166 glover avenue, norwalk, ct 06856 ? tel: 1-88-vectron-1 ? fax: 1-888-fax-vectron europe: in denmark, finland, ireland, italy, israel, norway, spain, uk: tel: 44 (0) 1703 766 288 ? fax: 44 (0) 1703 766 822 in austria,belgium,france,germany,luxenburg,netherlands,sweden,switzerland:tel: 49(0)7263 6480 ? fax:49(0)7263 6196 asia: in china, taiwan, japan: tel: 01 603 598 0070 ? fax: 01 603 598 0075 in korea, singapore, australia, india: tel: 01 203 853 4433 ? fax: 01 203 853 1423
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