obsolescence notice this product is obsolete. this information is available for your convenience only. for more information on zarlink?s obsolete products and replacement product lists, please visit http://products.zarlink.com/obsolete_products/
the SP4916 prescaler is one a range of very high speed low power prescalers for use in consumer applications such as satellite tv receivers. the device features a complementary output stage. features n high speed operation 25ghz n silicon technology for low phase noise n very low power dissipation 250mw n single 5v supply operation n high input sensitivity n very wide operating frequency range n electrostatic protection ? ? esd precautions must be observed 2275-21 SP4916 25ghz 4 4 512 prescaler dp8 mp8 SP4916 SP4916 gnd input input v cc nc output output nc 1 2 3 4 8 7 6 5 1 2 3 4 8 7 6 5 nc output output nc gnd input input v cc fig 1. pin connections - top view fig. 2 SP4916 block diagram 4 512 15ma 1k 1k 400 v cc 400 v ref (2v) input input 2 3 3ma output output gnd 7 6 4 1 absolute maximum ratings supply voltage, v cc input voltage storage temperature junction temperature 1 65v 25v p-p 2 55 c to 1 150 c 1 175 c ordering information SP4916 na dp SP4916 na mp advance information
2 SP4916 1 2 3 4 8 7 6 5 1n 1 5v 1n 180 hybrid coupler 180 01 m output 180 10n 10n 15p 15p 50 a 50 w signal generator b c d 50 w sampling scope output electrical characteristics these characteristics are guaranteed over the following conditions (unless otherwise stated): t amb = 2 10 c to 1 85 c, v cc = 1 475v to 1 525v (test circuit see fig. 4) characteristic supply current, i cc input sensitivity 500mhz to 1800mhz 2500mhz input impedance (series equivalent) output voltage with f in = 2500mhz conditions value typ. max. min. units 65 50 100 ma mv mv w pf v p-p v p-p 4 2,3 2,3 6,7 12 08 50 50 2 15 13 pin v cc = 1 5v rms sinewave, measured in 50 w system, see figs 3 and 4. see fig. 5 v cc = 1 5v, no load v cc = 1 5v, load as fig. 4 fig. 4 test circuit fig. 3 typical input sensitivity 400 150 100 50 1000 2000 3000 frequency (mhz) v in (mv rms into 50 w ) operating window SP4916
3 SP4916 fig. 5 typical input impedance (frequencies in mhz) j 2 j 1 j 0.5 j 0.2 0 2 j 0.2 2 j 0.5 2 j 1 2 j 2 1 0.5 0.2 j 5 2 j 5 2 5 1000 500 s 11 z o = 50 w 2500 2000 1500
4 SP4916 headquarters operations gec plessey semiconductors cheney manor, swindon, wiltshire sn2 2qw, united kingdom. tel: (0793) 518000 fax: (0793) 518411 gec plessey semiconductors p.o. box 660017 1500 green hills road, scotts valley, california 95067-0017, united states of america. tel: (408) 438 2900 fax: (408) 438 5576 customer service centres france & benelux les ulis cedex tel: (1) 64 46 23 45 tx: 602858f fax : (1) 64 46 06 07 germany munich tel: (089) 3609 06-0 tx: 523980 fax : (089) 3609 06-55 italy milan tel: (02) 66040867 fax: (02) 66040993 japan tokyo tel: (03) 3296-0281 fax: (03) 3296-0228 north america integrated circuits and microwave products scotts valley, usa tel (408) 438 2900 fax: (408) 438 7023. hybrid products, farmingdale, usa tel (516) 293 8686 fax: (516) 293 0061. south east asia singapore tel: (65) 3827708 fax: (65) 3828872 sweden stockholm, tel: 46 8 702 97 70 fax: 46 8 640 47 36 united kingdom & scandinavia swindon tel: (0793) 518510 tx: 444410 fax : (0793) 518582 these are supported by agents and distributors in major countries world-wide. gec plessey semiconductors 1993 publication no. ds2275 issue no. 2.1 june 1993 this publication is issued to provide information only which (unless agreed by the company in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. no warranty or guarantee express or implied is made regard ing the capability, performance or suitability of any product or service. the company reserves the right to alter without prior knowledge the specification, design or price of any product or service. information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. it is the user's responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. these products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. all products and materials are sold and services provided subject to the company's conditions of sale, w hich are available on request.
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