? 2012 cml microsystems plc 1 product preview DE9941 sdr 1 demonstrator sofware defned radio demonstrator for linear radio systems DE9941 brief descripton the DE9941 is a small demonstration platform for a linear modulation - based sofware defned radio (sdr) for wireless data applications. the small form factor of this credit card sized board is possible due to the high integration of key functions comprising: ? cartesian loop transmiter - cmx998 ? direct conversion receiver - cmx994 ? multi - mode wireless data modem - cmx7164 the DE9941 can be used to demonstrate transmit and receive performance with 4/16/64 qam linear modulation and constant - envelope modulation schemes such as 2/4 - level fsk and gmsk, that are also available on the cmx7164 multi - mode wireless data modem. included on board is a 1w power amplifer and rf performance is designed to be compliant with en 302 561 the design is aimed to be small and low cost, with the minimal number of components/values. feature summary ? demonstration of sdr wireless data modem ? direct conversion receiver, linear cartesian loop transmiter, fractional - n pll and vco ? 1w transmiter operation ? designed to meet en 302 561 ? on - board pll and vco for 452mhz to 467mhz operation ? single serial c - bus interface ? connects directly to pe0002 interface board ? scripts available for quick - start evaluation ? small size - 83mm x 55mm pp/9941/1 september 2012 introducton there is a growing market requirement for small , fexible sofware defned radio (sdr) data modems. the technology to accomplish this is now available with the release of cmls highly integrated rf and baseband product oferings: cmx998, cmx994 and cmx7164. the cmx998 is a market - leading cartesian loop transmiter ic providing optimum pa linearisation for non - constant envelope/linear systems. the cmx994 is the ultimate direct conversion receiver, providing direct conversion from rf down to i/q baseband. the cmx7164 multi - mode wireless data modem ic, based on firmasic ? technology, ofers multiple modulation schemes that can be uploaded into the device via function image?. the device supports both linear and non - linear modulation schemes (2 - fsk, 4 - fsk, gmsk, 4 - qam, 16 - qam and 64 - qam). design support available via the cml website (www.cmlmicro.com) ? user manual ? board schematics ? board gerber fles ? bom list ? scripts ? cmx998, cmx994, cmx7164 individual ic datasheets links ? www.cmlmicro.com ? DE9941 product page
? 2012 cml microsystems plc 2 product preview DE9941 sdr demonstrator for linear modulation systems phone: fax: email sales: email tech support: +44 (0) 1621 875500 +44 (0) 1621 875600 sales@cmlmicro.com techsupport@cmlmicro.com +1 336 744 5050 800 638 5577 +1 336 638 5577 us.sales@cmlmicro.com us.techsupport@cmlmicro.com +65 62 888129 +65 62 888230 sg.sales@cmlmicro.com sg.techsupport@cmlmicro.com www.cmlmicro.com search for: cmlmicro cmls proprietary firmasic ? component technology reduces cost, time to market and development risk, with increased fexibility for the designer and end application. firmasic ? combines analogue, digital, firmware and memory technologies in a single silicon platform that can be focused to deliver the right feature mix, performance and price for a target application family. specifc functions of a firmasic ? device are determined by uploading its function image? during device initialization. new function images? may be later provided to supplement and enhance device functions, expanding or modifying end - product features without the need for expensive and time - consuming design changes. firmasic ? devices provide signifcant time to market and commercial benefts over custom asic, structured asic, fpga and dsp solutions. they may also b e e xclusively customised where security or intellectual property issues prevent the use of application specifc standard products (assps). firmasic , firmcodec , ralcwi, function image and duratalk are trademarks of cml microsystems plc. board block diagram for further details of the DE9941 sdr demonstrator board for linear radio systems, please visit cmls website (www.cmlmicro.com) and search for DE9941 c m x 9 9 4 i q i q r e f o s c ( 1 9 . 2 m h z ) x 3 t / r p a ( r f 5 1 1 0 g ) r e g u l a t o r j 2 p o w e r p a _ s u p p l y r e g u l a t o r r e g u l a t o r r e g u l a t o r + 3 v 3 d + 3 v 3 a + 3 v 3 a _ r x / t x + 3 v 3 _ v c o j 1 a n t e n n a v c o 2 2 2 2 r x a d c s t x d a c s a u x a d c / d a c r a m d a c g p i o t h r u c b u s c - b u s j 3 c - b u s i n t e r f a c e f r a c - n p l l c m x 9 9 8 5 4 4 4 r x _ e n t x _ r x j 4 e x t e r n a l l o k e y i n t e r f a c e c o n n e c t o r c o a x c o n n e c t o r c m x 7 1 6 4
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