specifications of any and all sanyo semiconductor co.,l td. 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 ' sproductsor equipment. any and all sanyo semiconductor co.,ltd. products described or contained herein are, with regard to "standard application", intended for the use as general el ectronics equipment (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. if there is n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use. 42507 ms pc 20061215-s00001 / 61005 ms im b8-8634 no.8094-1/8 LA7784FN overview the LA7784FN is a digital out of band tuner for catv. it supports rf input from 50 to 280mhz and supports the docsis (usa) and euro-docsis (europe) standards. functions ? rf mixer ? rf agc amplifier ? driver for saw filter ? if agc amplifier ? if post amplifier for ad specifications maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum supply voltage v cc max pin 4, 12, 18, 19, 20, 21, 27, 28 6.0 v circuit voltages v max pin 5 v cc v circuit current i 10,11 pin 10, 11 sink current 2 ma allowable power dissipation pd max ta 70 c 750* mw operating temperature topr -20 to +70 c storage temperature tstg -55 to +150 c * on the board 30 50 0.8mm, fr4, 4 layer. recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit recommended supply voltage v cc pin 4, 12, 18, 19, 20, 21, 27, 28 5.0 v operating supply voltage range v cc op pin 4, 12, 18, 19, 20, 21, 27, 28 4.5 to 5.5 v monolithic linear ic for digital catv down converter ic orderin g numbe r : en8094a
bottom view top view 5.0 5.0 (0.05) 0.4 (1.1) (1.6) 0.45 0 (0.8) 0.85max 0.16 (1.6) laser marked index exposed die-pad do not connect 1 12 8 9 16 17 24 25 32 sanyo : vqfn32j(5.0x5.0) ac characteristics at ta = 25 c, v cc = 5.0v ratings parameter symbol pin no. conditions min typ max unit circuit current i total 4, 12, 18, 19, 20, 21, 27, 28 no signal 80 105 130 ma rf input frequency range f (rf) 22, 23 fc : -3db 50 280 mhz rf agc range gr1 27, 28 v5 = 2.5 to 0v 45 53 db mixer conversion gain cg1 the pin 27 output for the input to pins 22 and 23. the pin 28 output for the input to pins 22 and 23. v5 = 2.5v 19 22 25 db mixer inter modulation 1 im3 1 the pin 27 output for the input to pins 22 and 23. the pin 28 output for the input to pins 22 and 23. input = 75db v v5 = 2.5v 40 50 db if input frequency range f (if) 31, 32 fc : -3db 30 100 mhz if amplifier gain g (agc) the pin 10 output for the input to pins 31 and 32. the pin 11 output for the input to pins 31 and 32. v5 = 2.5v 51 55 59 db if inter modulation 2 im3 2 the pin 10 output for the input to pins 31 and 32. the pin 11 output for the input to pins 31 and 32. output = 110db v 40 50 db if agc range gr2 10, 11 if output level < 1db 3 5 db v o (if) 1 10 single output 1.0 vp-p if agc output level v o (if) 2 11 single output 1.0 vp-p package dimensions unit : mm 3308
LA7784FN no.8094-3/8 block diagram and pin assignment saw driver rf agc a mp rf mixer post amp if agc a mp lo buffer 27 28 29 30 31 32 25 26 24 23 22 17 21 20 19 18 15 14 13 12 16 11 10 9 1 2 3 4 5 6 7 8 post amp v cc rf agc amp v cc 2 nc mix / lo gnd nc rf agc amp gnd nc rf agc amp v cc 1 saw driver v cc mix / lo v cc nc nc nc nc if agc amp gnd if agc amp v cc agc control post amp gnd nc nc post amp output 1 post amp output 2 lo buffer input 2 lo buffer input 1 rf agc amp input 1 rf agc amp input 2 saw driver output 1 saw driver output 2 saw driver gnd if agc amp gnd if agc amp input 1 if agc amp input 2
LA7784FN no.8094-4/8 pin functions pin number pin name equivalent circuit 1, 2 nc (connect to gnd) 3 if agc amp gnd 4 if agc amp v cc 5 agc control 6 post amp gnd 7, 8, 9 nc (connect to gnd) 10, 11 post amp output 12 post amp v cc 13 mix/lo gnd 14, 15 lo buffer input 16, 17 nc (connect to gnd) 18 mixer/lo v cc 19 saw driver v cc continued on next page. v cc 5 1k ? ? ? ? ? 300 ? ? 70 a
LA7784FN no.8094-5/8 continued from preceding page. pin number pin name equivalent circuit 20, 21 rf agc amp v cc 22, 23 rf agc amp input 24, 25 nc (connect to gnd) 26 rf agc amp gnd 27, 28 saw driver output 29 saw driver gnd 30 if agc amp gnd 31, 32 if agc amp input 20 21 22 23 1k ? ? 27 28 20 ? 20ma 20 ? 31 32 1k ? 1k ? bias
LA7784FN no.8094-6/8 test circiut 5v v v 5v v v fet probe fet probe f=80mhz 50 ? 1000pf 1k ? agc control 1000pf 1000pf saw driver rf agc a mp rf mixer post amp if agc a mp lo buffer 27 28 29 30 31 32 25 26 24 23 22 17 21 20 19 18 15 14 13 12 16 11 10 9 1 2 3 4 5 6 7 8 0.01 f 1000pf 1000pf 1000pf 50 ? f=50mhz 50 ? 0.01 f 1000pf 1000pf 50 ? f=130mhz 0.01 f
LA7784FN no.8094-7/8
LA7784FN ps no.8094-8/8 sanyo semiconductor co.,ltd. assumes no responsib ility for equipment failures that result from using products at values that exceed, even momentarily, rate d values (such as maximum ra tings, operating condition ranges, or other parameters) listed in products specif ications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-qual ity high-reliability products, however, any and all semiconductor products fail or malfunction with some probabi lity. it is possible that these probabilistic failures or malfunction could give rise to acci dents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause dam age to other property. when designing equipment, adopt safety measures so that these kinds of accidents or e vents cannot occur. such measures include but are not limited to protective circuits and error prevention c ircuits for safe design, redundant design, and structural design. upon using the technical information or products descri bed herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of sanyo semiconductor co.,ltd. or any third party. sanyo semiconductor co.,ltd. shall not be liable f or any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. information (including circuit diagr ams and circuit parameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equi pment, refer to the "delivery specification" for the sanyo semiconductor co.,ltd. product that you intend to use. in the event that any or all sanyo semiconductor c o.,ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities conc erned 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 in formation storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd. this catalog provides information as of aplil, 2007. specifications and information herein are subject to change without notice.
|
