la1177 ordering number : en2257b electronic tuning-use fm front end for car radio, home stereos monolithic linear ic sanyo electric co.,ltd. semiconductor bussiness headquarters tokyo office tokyo bldg., 1-10, 1 chome, ueno, taito-ku, tokyo, 110 japan 93097ha (kt)/3079ta/1268ki/8016ki, ts no.2257-1/8 overview the la1177 is an fm front end ic for use in car radio, home stereo applications. it requires fewer external parts. the on-chip oscillator and oscillation buffer facilitate designing of electronic tuning sets. features wide-band agc circuit (improvement in intermodu- lation, cross modulation characteristics). on-chip local oscillation buffer (for electronic tuning). functions oscillator, oscillation buffer. mixer. wide-band agc circuit. if amplifier. package dimensions unit: mm 3017c-sip9 [la1177] sanyo: sip9 specifications maximum ratings at ta=25? parameter symbol conditions ratings unit maximum supply voltage v cc max pins 2, 9 10 v allowable power dissipation pd max ta 70? 440 mw operating temperature topr ?0 to +70 ? storage temperature tstg ?0 to +125 ? operating conditions at ta=25? parameter symbol conditions ratings unit recommended supply voltage v cc 8v operating voltage range v cc op 8 to 9 v electrical characteristics at ta=25?, v cc =8v, fin=88mhz parameter symbol conditions ratings min typ max unit quiescent current i cco no input 21 26 31 ma agc high-level voltage v agc -h v in =0db 7.7 8.0 v agc low-level voltage v agc -l v in =100db 0.07 0.3 v agc mixer input voltage v i agc v agc 2v, pin 3 73 80 87 db if saturation output voltage v if -max v in =1.0db 108 112 116 db input limiting voltage v i lim 76 83 90 db voltage gain vg v in =65db 88 92 96 db local osc output voltage v osc no input, 75 termination 80 84 88 db
la1 177 evaluation circuit and internal equivalent circuit block diagram t ypical v oltage on each pin no.2257-2/8 t1 : yt30224 (mitsumi) l1 : hu-50448 (mitsumi) cf1-cf2 : sfe10.7ma (murata) unit (resistance : , capacitance : f) pin no. typical voltage description remarks 1 2.7v mixer input 2 8.0v mixer output 3 8.0v agc input no input 4 2.0v if input 5 0v gnd 6 4.9v oscillator base terminal 7 1.4v oscillation buffer output 8 4.4v if output 9 8.0v v cc note : extreme caution should be exercised when applying voltage across pin 9 (+) and other pins as dielectric breakdown may occur.
la1 177 no.2257-3/8 sample printed circuit pattern sample application circuit unit (resistance : , capacitance : f) unit (resistance : , capacitance : f) cu-foiled area 85 82 mm 2
la1 177 no.2257-4/8 input/output characteristic mixer input level ? db if amp output level ? db agc detuning characteristic detuning frequency ? mhz mixer input level ? db load resistance characteristic of osc buffer load resistance, r l ? osc buffer output level ? mvrms reduced voltage characteristic of osc frequency supply voltage, v cc ? v osc buffer output level ? mvrms if amp frequency characteristic frequency, f ? khz voltage gain, vg ? db reduced voltage characteristic of osc frequency supply voltage, v cc ? v osc frequency variation ? khz load delay characteristic of osc puffer load capacitance ? pf osc buffer output level ? mvrms mixer input/output characteristic mixer input level ? db mixer output level ? db agc output voltage ? v
la1 177 no.2257-5/8 if amp input/output characteristic if amp input level ? db if amp output level ? db input/output characteristic mixer input level ? db total harmonic distortion, thd ? % demodulation output level ? dbm input/output characteristic with temperature as parameter mixer input level ? db if amp output level ? db mixer input/output characteristic with temperature as parameter mixer input level ? db mixer output level ? db temperature characteristic of if amp input/output ambient temperature, ta ? c relative level deviation of if amp output ? db input/output characteristic of mixer input/output ambient temperature, ta ? c relative level deviation of mixer output ? db current drain characteristic supply voltage, v cc ? v current drain, i cc ? ma temperature characteristic of mixer input/output ambient temperature, ta ? c relative level deviation of if amp output ? db agc output voltage ? v
la1 177 no.2257-6/8 if amp input/output characteristic with temperature as parameter if amp input level ? db if amp output level ? db temperature characteristic of v agc-l voltage ambient temperature, ta ? c v agc-l voltage ? v temperature characteristic of osc frequency ambient temperature, ta ? c osc frequency variation ? khz osc frequency characteristic osc frequency ? mhz osc level ? db reception sensitivity characteristic receiving frequency ? mhz mixer input 30db qs sensitivity ? db temperature characteristic of osc buffer output ambient temperature, ta ? c osc buffer output variation ? db temperature characteristic of v agc-h voltage ambient temperature, ta ? c v agc-h voltage ? v temperature characteristic of mixer input level at which agc voltage is inverted ambient temperature, ta ? c mixer input level at which agc voltage is inverted ? db
la1 177 no.2257-7/8 agc characteristic mixer input level ? db agc output voltage ? v input/output characteristic antenna input level ? db demodulation level ? db intermodulation characteristic (mixer alone) undesired signal input level ? db 30db qs sensitivity ? db intermodulation characteristic (3sk181) undesired signal input level ? db 30db qs sensitivity ? db intermodulation characteristic (3sk114) undesired signal input level ? db 30db qs sensitivity ? db input/output characteristic mixer input level ? db demodulation level ? dbm agc voltage, v agc ? v intermodulation characteristic undesired signal input level ? db 30db qs sensitivity ? db
la1 177 no.2257-8/8 n o p r o d u c t s d e s c r i b e d o r c o n t a i n e d h e r e i n a r e i n t e n d e d f o r u s e i n s u r g i c a l i m p l a n t s , l i f e - s u p p o r t s y s t e m s , a e r o s p a c e e q u i p m e n t , n u c l e a r p o w e r c o n t r o l s y s t e m s , v e h i c l e s , d i s a s t e r / c r i m e - p r e v e n t i o n e q u i p m e n t a n d t h e l i k e , t h e f a i l u r e o f w h i c h m a y d i r e c t l y o r i n d i r e c t l y c a u s e i n j u r y , d e a t h o r p r o p e r t y l o s e . a n y o n e p u r c h a s i n g a n y p r o d u c t s d e s c r i b e d o r c o n t a i n e d h e r e i n f o r a n a b o v e - m e n t i o n e d u s e s h a l l : a c c e p t f u l l r e s p o n s i b i l i t y a n d i n d e m n i f y a n d d e f e n d s a n y o e l e c t r i c c o . , l t d . , i t s a f f i l i a t e s , s u b s i d i a r i e s a n d d i s t r i b u t o r s a n d a l l t h e i r o f f i c e r s a n d e m p l o y e e s , j o i n t l y a n d s e v e r a l l y , a g a i n s t a n y a n d a l l c l a i m s a n d l i t i g a t i o n a n d a l l d a m a g e s , c o s t a n d e x p e n s e s a s s o c i a t e d w i t h s u c h u s e : n o t i m p o s e a n y r e s p o n s i b i l t y f o r a n y f a u l t o r n e g l i g e n c e w h i c h m a y b e c i t e d i n a n y s u c h c l a i m o r l i t i g a t i o n o n s a n y o e l e c t r i c c o . , l t d . , i t s a f f i l i a t e s , s u b s i d i a r i e s a n d d i s t r i b u t o r s o r a n y o f t h e i r o f f i c e r s a n d e m p l o y e e s j o i n t l y o r s e v e r a l l y . i n f o r m a t i o n ( i n c l u d i n g c i r c u i t d i a g r a m s a n d c i r c u i t p a r a m e t e r s ) h e r e i n i s f o r e x a m p l e o n l y ; i t i s n o t g u a r a n t - e e d f o r v o l u m e p r o d u c t i o n . s a n y o b e l i e v e s i n f o r m a t i o n h e r e i n i s a c c u r a t e a n d r e l i a b l e , b u t n o g u a r a n t e e s a r e m a d e o r i m p l i e d r e g a r d i n g i t s u s e o r a n y i n f r i n g e m e n t s o f i n t e l l e c t u a l p r o p e r t y r i g h t s o r o t h e r r i g h t s o f t h i r d p a r t i e s . t h i s c a t a l o g p r o v i d e s i n f o r m a t i o n a s o f s e p t e m b e r , 1 9 9 7 . s p e c i f i c a t i o n s a n d i n f o r m a t i o n h e r e i n a r e s u b j e c t t o c h a n g e w i t h o u t n o t i c e . intermodulation characteristic (comparison) - (1) undesired signal input level ? db 30db qs sensitivity ? db intermodulation characteristic (comparison) - (2) undesired signal input level ? db 30db qs sensitivity ? db
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