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m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 h i s t o r y d a t e r e v . description 2009/07/10 a 0 0 first release 2009/07/23 a 0 1 add rohs compliant 2 0 1 0 / 0 3 / 2 3 a 0 2 a d d p a c k i n g a n d h a n d l i n g s e c t i o n , p l u s s m t a n d s o l d e r i n g cautions 2010/04/30 a03 page 10: reference design circuit page 17: modify for rmc magnetic variation data 2

s y s t e m b l o c k m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 4
m e c h a n i c a l m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 u n i t : m m 5
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 r e c o m m e n d p c b l a y o u t p a d f o o t p r i n t t o p v i e w n o t r a c e s a n d v i a s a r e a l l o w e d t o p a s s t h e a r e a 6 1 . 2 q j o ! 2 ! ! ! ! p c b b o t t o m v i e w u n i t : m m 6
p i n c o n f i g u r a t i o n m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 p i n d e f i n i t i o n t o p v i e w pin name i/o description 1 v c c p i main dc power input 2 e n a b l e i high active, or keep floating for normal working 3 g n d p ground 4 v b a c k u p p i backup power input 5 3 d - f i x o 3d-fix indicator 6 d p l u s i / o usb port d+ 7 d m i n u s i / o u s b p o r t d - 8 g n d p ground 9 t x d o serial data output of nmea 1 0 r x d i serial data input for firmware update 7
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 d e s c r i p t i o n o f i / o p i n v c c ( p i n 1 ) t h e m a i n d c p o w e r s u p p l y o f t h e m o d u l e , t h e v o l t a g e s h o u l d b e k e p t b e t w e e n f r o m 3 . 2 v t o 5 . 0 v . the vcc ripple must be controlled under 50mv pp ( t y p i c a l : 3 . 3 v ) e n a b l e ( p i n 2 ) k e e p o p e n o r p u l l h i g h t o p o w e r o n . p u l l l o w t o s h u t d o w n t h e m o d u l e . e n a b l e ( h i g h ) : 1 . 8 v < = v e n a b l e < = v c c d i s a b l e ( l o w ) : 0 v < = v e n a b l e < = 0 . 2 5 v g n d ( p i n 3 ) g r o u n d v b a c k u p ( p i n 4 ) t h i s i s t h e p o w e r f o r g p s c h i p s e t t o k e e p r t c r u n n i n g w h e n m a i n p o w e r i s r e m o v e d . t h e v o l t a g e s h o u l d b e k e p t b e t w e e n 2 . 0 v ~ 4 . 3 v . ( t y p i c a l : 3 . 0 v ) the pin must be connected for normal operation. 3 d - f i x ( p i n 5 ) t h e 3 d - f i x w a s a s s i g n e d a s f i x f l a g o u t p u t . i f n o t u s e d , k e e p f l o a t i n g . ? b e f o r e 2 d f i x t h e p i n s h o u l d c o n t i n u o u s l y o u t p u t o n e - s e c o n d h i g h - l e v e l w i t h o n e - s e c o n d l o w - l e v e l s i g n a l . 1 s 1 s ? a f t e r 2 d o r 3 d f i x t h e p i n s h o u l d c o n t i n u o u s l y o u t p u t l o w - l e v e l s i g n a l . l o w 8
d p l u s ( p i n 6 ) u s b p o r t d p l u s s i g n a l d m i n u s ( p i n 7 ) u s b p o r t d m i n u s s i g n a l g n d ( p i n 8 ) g r o u n d m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 t x d ( p i n 9 ) t h i s i s t h e u a r t t r a n s m i t t e r o f t h e m o d u l e . i t o u t p u t s t h e g p s i n f o r m a t i o n f o r a p p l i c a t i o n . r x d ( p i n 1 0 ) t h i s i s t h e u a r t r e c e i v e r o f t h e m o d u l e . i t i s u s e d t o r e c e i v e s o f t w a r e c o m m a n d s a n d f i r m w a r e u p d a t e . 9
\ r e f e r e n c e d e s i g n u s b i n t e r f a c e m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 u a r t i n t e r f a c e 1 0
s p e c i f i c a t i o n s m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 g e n e r a l chipset mtk mt3329 frequency l1, 1575.42mhz c/a code 1.023 mhz channels 66 channels sbas waas, egnos,msas ,gagan supported(default: enable) datum wgs84(default), tokyo-m, tokyo-a, user define cpu arm7ej-s dimensions length/width/height 16*16*6 mm weight 6g performance characteristics p o s i t i o n a c c u r a c y w i t h o u t a i d : 3 m 2 d - r m s d g p s ( r t m , s b a s ( w a a s , e g n o s , m a s a ) ) : 2 . 5 m 2 d - r m s v e l o c i t y a c c u r a c y w i t h o u t a i d : 0 . 1 m / s dgps (rtcm, sbas ):0.05m/s a c c e l e r a t i o n a c c u r a c y without aid:0.1 m/s2 dgps (rtcm, sbas ):0.05m/s2 timing accuracy 100 ns rms s e n s i t i v i t y 1 acquisition:-148dbm (cold start) reacquisition:-160dbm tracking:-165dbm update rate 1hz (default) acquisition (open sky, stationary) reacquisition time 1 less than 1 second hot start 1 1.0s (typical) warm start 1 34s (typical) cold start 1 35s (typical) 1 r e f e r e n c e t o g p s c h i p s e t s p e c i f i c a t i o n 1 1
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 d y n a m i c altitude maximum 18,000m velocity maximum 515m/s acceleration maximum 4g i/o signal output 8 data bits, no parity, 1 stop bit a v a i l a b l e b a u d r a t e s d e f a u l t : 9 6 0 0 b p s ( 4 8 0 0 / 9 6 0 0 / 3 8 4 0 0 / 5 7 6 0 0 / 1 1 5 2 0 0 b p s b y c u s t o m i z a t i o n ) p r o t o c o l s n m e a 0 1 8 3 v 3 . 0 1 ( d e f a u l t : g g a , g s a , g s v , r m c , v t g ) m t k n m e a c o m m a n d data output interface usb interface logo certified usb 2.0 full-speed compatible uart interface ttl level serial port environment operating temperature -40 c to 85 c storage temperature -50 c to 90 c operating humidity 5% to 95% (no condensing) mounting smd type ,10 pin 1 2
d c c h a r a c t e r i s t i c s m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 p a r a m e t e r c o n d i t i o n m i n . t y p . m a x . u n i t operation supply voltage 3.2 3.3 5.0 v operation supply ripple voltage 50 mvpp backup battery voltage 2.0 3.0 4.3 v rxa ttl h level vcc=3.3v 2.1 2.8 v rxa ttl l level vcc=3.3v 0 0.9 v txa ttl h level vcc=3.3v 2.1 2.8 v txa ttl l level vcc=3.3v 0 0.8 v u s b d + v c c = 5 . 0 v v u s b d - v c c = 5 . 0 v v p o w e r c o n s u m p t i o n @ 3 . 3 v a c q u i s i t i o n 4 3 4 8 5 3 m a tracking 32 37 42 ma backup power consumption@ 3.0v 25c 10 ua s h u t - d o w n p o w e r c o n s u m p t i o n ( v i a e n a b l e p i n ) 25c 15 ua n m e a o u t p u t s e n t e n c e t a b l e - 1 l i s t s e a c h o f t h e n m e a o u t p u t s e n t e n c e s s p e c i f i c a l l y d e v e l o p e d a n d d e f i n e d b y m t k f o r u s e w i t h i n m t k p r o d u c t s n m e a o u t p u t s e n t e n c e t a b l e - 1 option description gga time, position and fix type data. gsa gps receiver operating mode, active satellites used in the position solution, and dop values. gsv the number of gps satellites in view satellite id numbers, elevation, azimuth, and snr values. rmc time, date, position, course and speed data. recommended minimum navigation information. vtg course and speed information relative to the ground. 1 3
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 g g a g l o b a l p o s i t i o n i n g s y s t e m f i x e d d a t a . t i m e , p o s i t i o n a n d f i x r e l a t e d d a t a f o r a g p s r e c e i v e r t a b l e - 2 c o n t a i n s t h e v a l u e s f o r t h e f o l l o w i n g e x a m p l e : $ g p g g a , 0 6 4 9 5 1 . 0 0 0 , 2 3 0 7 . 1 2 5 6 , n , 1 2 0 1 6 . 4 4 3 8 , e , 1 , 8 , 0 . 9 5 , 3 9 . 9 , m , 1 7 . 8 , m , , * 6 5 g g a d a t a f o r m a t t a b l e - 2 n a m e e x a m p l e u n i t s description m e s s a g e i d $ g p g g a g g a p r o t o c o l h e a d e r u t c t i m e 0 6 4 9 5 1 . 0 0 0 h h m m s s . s s s l a t i t u d e 2 3 0 7 . 1 2 5 6 d d m m . m m m m n / s i n d i c a t o r n n = n o r t h o r s = s o u t h l o n g i t u d e 1 2 0 1 6 . 4 4 3 8 d d d m m . m m m m e / w i n d i c a t o r e e = e a s t o r w = w e s t p o s i t i o n f i x indicator 1 s e e t a b l e - 3 s a t e l l i t e s u s e d 8 r a n g e 0 t o 1 4 h d o p 0 . 9 5 h o r i z o n t a l d i l u t i o n o f p r e c i s i o n m s l a l t i t u d e 3 9 . 9 m e t e r s a n t e n n a a l t i t u d e a b o v e / b e l o w mean-sae-level u n i t s m m e t e r s units of antenna altitude g e o i d a l separation 1 7 . 8 m e t e r s u n i t s m m e t e r s units of geoidal separation a g e o f d i f f . c o r r . s e c o n d n u l l f i e l d s w h e n d g p s i s n o t used c h e c k s u m * 6 5 < c r > < l f > e n d o f m e s s a g e t e r m i n a t i o n p o s i t i o n f i x i n d i c a t o r t a b l e - 3 value description 0 fix not available 1 gps fix 2 differential gps fix 1 4
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 g s a g n s s d o p a n d a c t i v e s a t e l l i t e s t a b l e - 4 c o n t a i n s t h e v a l u e s f o r t h e f o l l o w i n g e x a m p l e : $ g p g s a , a , 3 , 2 9 , 2 1 , 2 6 , 1 5 , 1 8 , 0 9 , 0 6 , 1 0 , , , , , 2 . 3 2 , 0 . 9 5 , 2 . 1 1 * 0 0 g s a d a t a f o r m a t t a b l e - 4 name example units description m e s s a g e i d $ g p g s a g s a p r o t o c o l h e a d e r m o d e 1 a s e e t a b l e - 5 m o d e 2 3 s e e t a b l e - 6 s a t e l l i t e u s e d 2 9 s v o n c h a n n e l 1 s a t e l l i t e u s e d 2 1 s v o n c h a n n e l 2 .... . . .... s a t e l l i t e u s e d s v o n c h a n n e l 1 2 p d o p 2 . 3 2 p o s i t i o n d i l u t i o n o f p r e c i s i o n h d o p 0 . 9 5 h o r i z o n t a l d i l u t i o n o f p r e c i s i o n v d o p 2 . 1 1 v e r t i c a l d i l u t i o n o f p r e c i s i o n c h e c k s u m * 0 0 < c r > < l f > e n d o f m e s s a g e t e r m i n a t i o n m o d e 1 t a b l e - 5 value description m manualforced to operate in 2d or 3d mode a 2d automaticallowed to automatically switch 2d/3d m o d e 2 t a b l e - 6 value description 1 fix not available 2 2d ( 4 svs used) 3 3d ( R 4 svs used) 1 5
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 g s v g n s s s a t e l l i t e s i n v i e w t a b l e - 7 c o n t a i n s t h e v a l u e s f o r t h e f o l l o w i n g e x a m p l e : $ g p g s v , 3 , 1 , 0 9 , 2 9 , 3 6 , 0 2 9 , 4 2 , 2 1 , 4 6 , 3 1 4 , 4 3 , 2 6 , 4 4 , 0 2 0 , 4 3 , 1 5 , 2 1 , 3 2 1 , 3 9 * 7 d $ g p g s v , 3 , 2 , 0 9 , 1 8 , 2 6 , 3 1 4 , 4 0 , 0 9 , 5 7 , 1 7 0 , 4 4 , 0 6 , 2 0 , 2 2 9 , 3 7 , 1 0 , 2 6 , 0 8 4 , 3 7 * 7 7 $ g p g s v , 3 , 3 , 0 9 , 0 7 , , , 2 6 * 7 3 g s v d a t a f o r m a t t a b l e - 7 n a m e e x a m p l e u n i t s description m e s s a g e i d $ g p g s v g s v p r o t o c o l h e a d e r n u m b e r o f messages 3 r a n g e 1 t o 3 ( d e p e n d i n g o n t h e n u m b e r o f s a t e l l i t e s t r a c k e d , m u l t i p l e m e s s a g e s o f g s v d a t a m a y b e r e q u i r e d . ) m e s s a g e n u m b e r 1 1 r a n g e 1 t o 3 s a t e l l i t e s i n v i e w 0 9 s a t e l l i t e i d 2 9 c h a n n e l 1 ( r a n g e 1 t o 3 2 ) e l e v a t i o n 3 6 degrees channel 1 (maximum 90) a z i m u t h 0 2 9 degrees c h a n n e l 1 ( t r u e , r a n g e 0 t o 359) s n r ( c / n o ) 4 2 d b h z r a n g e 0 t o 9 9 , (null when not tracking) . . . . . . .... s a t e l l i t e i d 1 5 c h a n n e l 4 ( r a n g e 1 t o 3 2 ) e l e v a t i o n 2 1 degrees channel 4 (maximum 90) a z i m u t h 3 2 1 degrees c h a n n e l 4 ( t r u e , r a n g e 0 t o 359) s n r ( c / n o ) 3 9 d b h z r a n g e 0 t o 9 9 , (null when not tracking) c h e c k s u m * 7 d < c r > < l f > e n d o f m e s s a g e t e r m i n a t i o n 1 6
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 r m c r e c o m m e n d e d m i n i m u m n a v i g a t i o n i n f o r m a t i o n t a b l e - 8 c o n t a i n s t h e v a l u e s f o r t h e f o l l o w i n g e x a m p l e : $ g p r m c , 0 6 4 9 5 1 . 0 0 0 , a , 2 3 0 7 . 1 2 5 6 , n , 1 2 0 1 6 . 4 4 3 8 , e , 0 . 0 3 , 1 6 5 . 4 8 , 2 6 0 4 0 6 , 3 . 0 5 , w , a * 2 c r m c d a t a f o r m a t t a b l e - 8 n a m e e x a m p l e u n i t s description m e s s a g e i d $ g p r m c r m c p r o t o c o l h e a d e r u t c t i m e 0 6 4 9 5 1 . 0 0 0 h h m m s s . s s s s t a t u s a a = d a t a v a l i d o r v = d a t a n o t v a l i d l a t i t u d e 2 3 0 7 . 1 2 5 6 d d m m . m m m m n / s i n d i c a t o r n n = n o r t h o r s = s o u t h l o n g i t u d e 1 2 0 1 6 . 4 4 3 8 d d d m m . m m m m e / w i n d i c a t o r e e = e a s t o r w = w e s t s p e e d o v e r ground 0 . 0 3 k n o t s c o u r s e o v e r ground 1 6 5 . 4 8 d e g r e e s true d a t e 2 6 0 4 0 6 d d m m y y m a g n e t i c v a r i a t i o n 3 . 0 5 , w d e g r e e s e=east or w=west (need customization service) m o d e a a = a u t o n o m o u s m o d e d = d i f f e r e n t i a l m o d e e = e s t i m a t e d m o d e c h e c k s u m * 2 c < c r > < l f > e n d o f m e s s a g e t e r m i n a t i o n 1 7
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 v t g c o u r s e a n d s p e e d i n f o r m a t i o n r e l a t i v e t o t h e g r o u n d . t a b l e - 9 c o n t a i n s t h e v a l u e s f o r t h e f o l l o w i n g e x a m p l e : $ g p v t g , 1 6 5 . 4 8 , t , , m , 0 . 0 3 , n , 0 . 0 6 , k , a * 3 7 v t g d a t a f o r m a t t a b l e - 9 name example units description m e s s a g e i d $ g p v t g v t g p r o t o c o l h e a d e r course 165.48 degrees measured heading r e f e r e n c e t t r u e c o u r s e d e g r e e s measured heading r e f e r e n c e m m a g n e t i c ( n e e d c u s t o m i z a t i o n s e r v i c e . ) speed 0.03 knots measured horizontal speed u n i t s n k n o t s speed 0.06 km/hr measured horizontal speed u n i t s k k i l o m e t e r s p e r h o u r m o d e a a = a u t o n o m o u s m o d e d = d i f f e r e n t i a l m o d e e = e s t i m a t e d m o d e c h e c k s u m * 0 6 < c r > < l f > e n d o f m e s s a g e t e r m i n a t i o n m t k n m e a c o m m a n d p r o t o c o l p a c k e t t y p e : 1 0 3 p m t k _ c m d _ c o l d _ s t a r t p a c k e t m e a n i n g : c o l d s t a r t : d o n t u s e t i m e , p o s i t i o n , a l m a n a c s a n d e p h e m e r i s d a t a a t r e - s t a r t . e x a m p l e : $ p m t k 1 0 3 * 3 0 < c r > < l f > 1 8
m e d i a t e k - 3 3 2 9 d a t a s h e e t r e v . a 0 3 m a n u a l s o l d e r i n g : s o l d e r i n g i r o n : b i t t e m p e r a t u r e : u n d e r 3 8 0 c t i m e : u n d e r 3 s e c . n o t e s : 1 . p l e a s e d o n o t d i r e c t l y t o u c h t h e s o l d e r i n g p a d s o n t h e s u r f a c e o f t h e p c b b o a r d , i n o r d e r t o p r e v e n t f u r t h e r o x i d a t i o n 2 . t h e s o l d e r p a s t e m u s t b e d e f r o s t e d t o r o o m t e m p e r a t u r e b e f o r e u s e s o i t c a n r e t u r n t o i t s o p t i m a l w o r k i n g t e m p e r a t u r e . t h e t i m e r e q u i r e d f o r t h i s p r o c e d u r e i s u n i q u e a n d d e p e n d e n t o n t h e p r o p e r t i e s o f t h e s o l d e r p a s t e u s e d . 3 . t h e s t e e l p l a t e m u s t b e p r o p e r l y a s s e s s e d b e f o r e a n d a f t e r u s e , s o i t s m e a s u r e m e n t s t a y s s t r i c t l y w i t h i n t h e s p e c i f i c a t i o n s e t b y s o p . 4 . p l e a s e w a t c h o u t f o r t h e s p a c i n g b e t w e e n s o l d e r i n g j o i n t , a s e x c e s s s o l d e r m a y c a u s e e l e c t r i c a l s h o r t a g e 5 . p l e a s e e x e r c i s e w i t h c a u t i o n a n d d o n o t u s e e x t e n s i v e a m o u n t o f f l u x d u e t o p o s s i b l e s i p h o n e f f e c t s o n n e i g h b o r i n g c o m p o n e n t s , w h i c h m a y l e a d t o e l e c t r i c a l s h o r t a g e . 6 . p l e a s e d o n o t u s e t h e h e a t g u n f o r l o n g p e r i o d s o f t i m e w h e n r e m o v i n g t h e s h i e l d i n g o r i n n e r c o m p o n e n t s o f t h e g p s m o d u l e , a s i t i s v e r y l i k e l y t o c a u s e a s h i f t t o t h e i n n e r c o m p o n e n t s a n d w i l l l e a d s t o e l e c t r i c a l s h o r t a g e . 1 9

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