any and all sanyo products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft? control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. consult with your sanyo representative nearest you before using any sanyo products described or contained herein in such applications. sanyo assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all sanyo products described or contained herein. monolithic linear ic crt display synchronization deflection circuit ordering number:enn1581d LA7850 sanyo electric co.,ltd. semiconductor company tokyo office tokyo bldg., 1-10, 1 chome, ueno, taito-ku, tokyo, 110-8534 japan o2500tn (kt)/5238yt/4015my/6114ki, ts no.1581C1/5 1 10 20 11 0.5 (3.25) 3.3 3.9max 24.0 (0.57) 2.54 1.2 0.25 7.62 6.4 0.51min 1.0 package dimensions unit:mm 3021c-dip20 [LA7850] sanyo : dip20 overview the LA7850 is a sync deflection circuit ic dedicated to crt display use. it can be connected to the la7832, 7833, 7837, 7838 (for vertical output use) to form a sync deflec- tion circuit that meets every requirement for crt display use. so far, ics for color tv use have been applied to the sync deflection circuit for crt display use and general-purpose ics such as one-shot multivibrator, inverter and a lot of transistors have been used to form the peripherals such as sync input interface, horizontal phase shifter. the LA7850 contains these peripherals on chip and adopts a stable cir- cuit for horizontal oscillation from 15khz to 100khz aim- ing at improving the characteristics requierd for crt dis- play use. features ? the horizontal oscillation frequency can be adjusted sta- bly from 15khz to 100khz. ? the horizontal display can be shifted right/left. ? the horizontal/vertical sync input can be used intact re- gardless of the difference in pulse polarity and pulse width. ? the afc feedback sawtooth wave can be obtained by simply applying a flyback pulse to the ic as a trigger pulse. ? any duty of the horizontal pulse can be set. ? good vertical linearity because dc bias at vertical output stage is subject to sampling control within retrace time. on-chip functions [horizontal block] [vertical block] ? afc ? vertical osc ? horizontal osc ? vertical sawtooth wave generator ? x-ray protector ? sampling type dc voltage control ? horizontal phase shift ? afc sawtooth wave generator ? horizontal pulse duty setting
LA7850 no.1581C2/5 operating characteristics at ta = 25?c, v 10 , v 20 =12v operating conditions at ta = 25?c specifications maximum ratings at ta = 25?c ?c ?c ta 65?c r e t e m a r a pl o b m y ss n o i t i d n o cs g n i t a rt i n u e g a t l o v y l p p u s m u m i x a m v 0 1 v , 0 2 x a m 4 1v n o i t a p i s s i d r e w o p e l b a w o l l ax a m d p 0 8 7w m e r u t a r e p m e t g n i t a r e p or p o t 5 8 + o t 0 2 C e r u t a r e p m e t e g a r o t sg t s t 5 2 1 + o t 5 5 C r e t e m a r a pl o b m y ss n o i t i d n o cs g n i t a rt i n u e g a t l o v y l p p u s d e d n e m m o c e rv 0 1 v , 0 2 2 1v e g n a r e g a t l o v g n i t a r e p ov 0 1 v , 0 2 5 . 3 1 o t 9v e u l a v k a e p t u p n i e s l u p l a c i t r e v d e d n e m m o c e rv e s l u p 5p - p v e g n a r e u l a v k a e p t u p n i e s l u p l a c i t r e v g n i t a r e p ov e s l u p 6 o t 2p - p v k a e p t u p n i e s l u p l a t n o z i r o h d e d n e m m o c e r e u l a v h e s l u p 5p - p v e u l a v k a e p t u p n i e s l u p l a t n o z i r o h g n i t a r e p o e g n a r h e s l u p 6 o t 2p - p v hz/?c ta=C10 to +60?c hz/?c ta=C10 to +60?c %/?c ta=C10 to +60?c %/?c ta=C10 to +60?c %/?c ta=C10 to +60?c r e t e m a r a pl o b m y ss n o i t i d n o c s g n i t a r t i n u n i mp y tx a m v 0 1 c c n i a r d t n e r r u ci 0 1 2 10 3a m v 0 2 c c n i a r d t n e r r u ci 0 2 52 1a m e g n a r n i - l l u p y c n e u q e r f l a c i t r e vv n i p z h 0 6 c n y s l a c i t r e v0 . 0 10 . 2 1z h y c n e u q e r f g n i n n u r - e e r f l a c i t r e vf v f v z h 5 5 r e t n e c0 50 6z h f o c i t s i r e t c a r a h c e g a t l o v d e c u d e r / d e s a e r c n i y c n e u q e r f l a c i t r e v d f v v v 0 2 v 2 1 t a z h 5 5 , v 1 2 1 =1 . 0 C1 . 0 +z h l e v e l d l o h s e r h t l o r t n o c t n i o p d i m 8 . 34 . 4v e g a t l o v t r a t s c s o l a c i t r e vf t s v 0 . 4v y c n e u q e r f l a c i t r e v f o c i t s i r e t c a r a h c e r u t a r a p m e t 8 2 0 . 0 C8 2 0 . 0 + r o t c a f n o i t a c i f i l p m a r e v i r d l a c i t r e vg v 2 18 1b d n i a g p o o l c d c f a l a t n o z i r o hi c f a 5 8 . 0 6 . 1 a m y c n e u q e r f g n i n n u r - e e r f l a t n o z i r o hf h f h z h k 4 3 7 . 5 1 r e t n e c0 5 7 C0 5 7 +z h e g a t l o v t r a t s c s o l a t n o z i r o hf h t s 0 . 4v f o c i t s i r e t c a r a h c e g a t l o v d e c u d e r / d e s a e r c n i y c n e u q e r f l a t n o z i r o h d f v h v 0 1 v 2 1 t a z h k 4 3 7 . 5 1 , v 1 2 1 =0 5 C0 5 +z h t f i r d p u - m r a w c s o l a t n o z i r o h d f h r e w o p f o n o i t a c i l p p a r e t f a . n i m 0 3 o t . s 50 5 C0 5 +z h l a t n o z i r o h f o c i t s i r e t c a r a h c e r u t a r e p m e t y c n e u q e r f 9 . 2 C9 . 2 + t n e r r u c e v i r d t u p t u o l a t n o z i r o hi 2 1 0 . 60 . 2 1a m f o c i t s i r e t c a r a h c e g a t l o v d e c u d e r / d e s a e r c n i e m i t y a l e d r e t f i h s e s a h p v 0 1 v 1 2 1 =5 . 0 C5 . 0 +v / % r e t f i h s e s a h p f o c i t s i r e t c a r a h c e r u t a r e p m e t e m i t y a l e d 1 . 0 C1 . 0 + f o c i t s i r e t c a r a h c e g a t l o v d e c u d e r / d e s a e r c n i e m i t y a l e d r e t f i h s e s a h p v 0 1 v 1 2 1 =0 . 1 C0 . 1 +v / % r e t f i h s e s a h p f o c i t s i r e t c a r a h c e r u t a r e p m e t h t d i w e s l u p 3 1 . 0 C3 1 . 0 + e m i t r e t n e c n o s i r a p m o c e s a h p c f a t u p n i . p . b . f r e t f a z h k 4 3 7 . 5 19 . 95 . 1 1s c f a f o c i t s i r e t c a r a h c e g a t l o v d e c u d e r / d e s a e r c n i e m i t r e t n e c n o s i r a p m o c e s a h p v 0 1 v 1 2 1 =5 . 1 C5 . 1 +v / % n o s i r a p m o c c f a f o c i t s i r e t c a r a h c e r u t a r e p m e t e m i t r e t n e c 2 . 0 C2 . 0 + t u p n i g n i t a r e n e g m r o f e v a w n o s i r a p m o c e g a t l o v n o i t a r e p o v 4 6 . 09 . 0v t r a t s n o i t a r e p o n w o d - d l o h t a e g a t l o v 3 1 n i p3 1 v5 . 08 . 0v
LA7850 no.1581C3/5 equivalent circuit block diagram sample application circuit : 14 color monitor/f v =60hz, f h =15.734khz
LA7850 no.1581C4/5 sample application circuit : 14 color monitor/f v =60hz, f h =15.734khz . o n e p y t0 5 8 7 a l1 5 8 7 a l2 5 8 7 a l3 5 8 7 a l e g a k c a p s 0 2 - p i d ) e p y t m i l s ( s 0 2 - p i d ) e p y t m i l s ( s 2 2 - p i d ) e p y t k n i r h s ( s 2 2 - p i d ) e p y t k n i r h s ( l a c i t r e v e g n a r n i - l l u p f ( v ) z h 0 6 = z h 0 1z h 0 2z h 0 1z h 0 2 n i p d n g . t r e v / . r o h n o m m o c . t r e v / . r o h n o m m o c . t r e v / . r o h d e t a r a p e s . t r e v / . r o h d e t a r a p e s LA7850 family differences in characteristics.
specifications of any and all sanyo products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. to verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. sanyo electric co., ltd. strives to supply high-quality high-reliability products. however, any and all semiconductor products fail with some probability. it is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. when designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. in the event that any or all sanyo products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of sanyo electric co. , ltd. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equipment, refer to the "delivery specification" for the sanyo product that you intend to use. information (including circuit diagrams and circuit parameters) herein is for example only ; it is not guaranteed for volume production. sanyo believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. this catalog provides information as of october, 2000. specifications and information herein are subject to change without notice. LA7850 ps no.1581C5/5
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