em 93 01 copyright 200 9 , em microe lectronic - marin sa 9301 - fs.doc , version 1.0 , 11/09 wireless and sensing www.emmicroelectronic.com info@emmicroelectronic.com em microelectronic - marin sa single - cell battery bluetooth low energy controller description the EM9301 is the first generation of low voltage and low power, fully integrated single - chip bluetooth low energy controller . it includes the physical layer, link - layer , with a n embedded security engine, the host controller interface (hci), and a powerful power management including a dc - dc up converter. t he EM9301 offers performances tailored for extremely low energy operation for power - sensitive applications. the purpose of the EM9301 is to offer a very high level of integration requiring a minimum of external components. the on - chip 2.4ghz radio tran sceiver operates in the 2.400 - 2.485 ghz ism band and the internal step - up (boost) dc/dc converter allows the application to operate from a single - cell 1.5v battery. this converter is designed to support an extra load such as a l ow power controller or sensor interface circuit with a dedicated application profile. the EM9301 can also operate without the dc/dc converter, when supplied from a 3 v battery or any other source such as an external ldo regulator. no external coil is needed then. the EM9301 is designed to act as a master or a slave according to the upcoming bluetooth low energy specification v1.0 . it has to be control by an external mi cro co ntro l ler or microprocessor through the standard uart or spi interface by using hci commands/events . any 8, 16 or 32 bit mcu can be used to handle the upper layer bl uetooth low energy profiles as well as application specific tasks. the EM9301 also feat ures a proprietary interface allowing putting it on an extremely low power mode, when the bluetooth low energy rf link is not required. with its high level of flexibility the EM9301 is the best choice for a bluetooth low energy companion chip . features ? si ngle cell 1.5v batt ery operation ? operation down to v bat = 0.8 v ? 3 v lithium battery as alternative ? compliant to bluetooth low e nergy specification v1.0 ? on air data rate 1mb/s ? programmable rf output level: - 20 dbm + 4dbm in 8 steps ? no antenna matching e lements needed through appropriate pcb antenna design ? 200 ? differential impedance of antenna port ? low - cost 26mhz xtal ? low - power + - 500ppm rc oscillator time base ? bld function: battery level detection in accordance with selected battery ? current consumption (on v cc , v cc =2.1v) 14.5 ma in peak current 10 .0 a in stand - by mode 3.0 a in slee p - mode (dc/dc) 1) 0.8 a in power - down mode (no dc/dc) 1) external load reduced to < 500a ? mlf24 4x4 package applications ? remote sensing in general ? wireless mouse and keyboa rd ? wireless sensors in watches ? wireless sports equipment ? alarm and security systems typical application schematic pin assignment h o s t c o n t r o l l e r s e n s o r v b a t v c c 2 a n t p a n t n e m 9 3 0 1 h c i f o r s i m p l i c i t y , n o t a l l s u p p l y p i n s i n d i c a t e d ! e x t e r n a l i s n e e d e d w h e n o n - c h i p d c / d c i s u s e d p o w e r m a n a g e m e n t u a r t / s p i t e s t b l u e t o o t h l o w - e n e r g y c o n t r o l l e r 2 . 4 g h z b l u e t o o t h l o w - e n e r g y r a d i o p r o p r i e t a r y s w _ d c d c e m 9 3 0 1 m l f 2 4 4 x 4 t x d / s d o s w _ d c d c a v d d _ p a x t a l 1 r x d / s d i r t s / s c k v d d v s s v s s _ d c d c v c c 1 v c c 2 b i a s _ r v b a t a v s s _ p l l 2 a v s s _ p a a n t n a n t p a v s s _ r f t s t x t a l 2 a v s s _ p l l 1 s e l w u / i r q c t s / c s n
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