22505 tn pc no.8130 - 1 / 8 LA8120T overview the LA8120T bipolar monolithic ic is an agc amplifier with driver amplifier for analog - to - digital converters. it is ideally suited for use with receiver systems that receive qpsk and/or qam data transmissions. f unctions if agc control if agc amplifier if step gain controlled amplifier driver amplifier applications digital catv cable modem receivers ip telephony receivers specitications absolute maximum ratings at ta = 25 c parameter symbol conditions rati ngs unit maximum supply voltage v cc max pin 1 7.0 v circuit voltages v max pin 4, pin 5 v cc op v circuit current i 6 i 7 pin 6 sink current pin 7 sink current 2 2 ma allowable power dissipation pd max ta 85 c 220* mw operating temperature topr - 20 to +85 c storage temperature tstg - 55 to + 1 50 c *mounted on pcb (paper phenol 20.0 10.0 0.8 t mm) recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit recommended supply voltage v cc pin 1 5.0 v operating supply v oltage range v cc op pin 1 4.5 to 5. 5 v ordering number : enn8130 monolithic linear ic agc amplifier with step gain control
LA8120T no.8130 - 2 / 8 electrical characteristics ac characteristics at ta = 25 c, v cc = 5.0 v ratings parameter symbol pin no. conditions m in t yp m ax unit circuit current itotal 1 no signal *1 25 30 35 ma i f input frequency r ange f(in) 2, 3 fc : - 3 db *1 30 - 100 mhz v4 = 3.0 v, f = 45 mhz pin 5 : v cc *2 - 5 - db v4 = 3.0 v, f = 45 mhz pin 5 : gnd *2 - 6 - db noise figure nf 6, 7 v4 = 3.0 v, f = 45 mhz pin 5 : open *2 - 8 - db intermodulation im3 6/2, 3 7/2, 3 f1 = 44 mhz, f2 = 45 mhz input = 90 db m /tone, output = 104 db /tone *1 50 - - dbc g (agc1) 6/2, 3 7/2, 3 v4 = 3.0 v, f = 45 mhz pin 5 : v cc *1 45.5 48 50.5 db g (agc2) 6/2, 3 7/2, 3 v4 = 3.0 v, f = 45 mhz pin 5 : gnd *1 41.5 44 46.5 db total amplifier gain g (agc3) 6/2, 3 7/2, 3 v4 = 3.0 v, f = 45 mhz pin 5 : open *1 33.5 36 38.5 db agc range 1 gr1 6/2, 3 7/2, 3 if output level < 1 db, f = 45 mhz *1 40 - - db if output level v o (if) 6, 7 output level, f = 45 mhz *1 - 1.0 - vp - p agc control max. voltage v4h 4 gain max. *1 2.5 - 3 v agc control min. voltage v4l 4 gain max. *1 0 - 0.5 v input impedance zin 2, 3 v4 = 0 v, f = 45 mhz *3 - 1 // 4.9 - k w // pf *1 : measurement circuit 1, *2 : measurement circuit 2, *3 : measurement circuit 3 package dime nsions unit : mm 3245a [LA8120T] 4 . 9 3.0 0.65 3 . 0 (0.53) ( 0 . 8 5 ) 0 . 5 0.125 1 4 8 5 0.25 0 . 0 8 1 . 1 m a x sanyo: msop8
LA8120T no.8130 - 3 / 8 pin functions pin number pin name descriptions 1 v cc 2 3 if input 4 agc control 5 gain control switch 6 7 driver output 8 gnd b lock diagram 2 3 1k w 1k w bias v cc 4 1k w 5 v cc 10k w 80k w 20 w 20 w v cc 7 6 8.0ma 8.0ma v cc if input1 if input2 agc control gnd driver output1 driver output2 gain control switch 1 4 3 2 8 5 6 7 agc
LA8120T no.8130 - 4 / 8 LA8120T gain, measurement circuit 1 LA8120T noise figure measurement circuit 2 LA8120T input impedance measurement circuit 3 LA8120T intermodulation measurement circuit 4 sw 1000pf 1000pf 200 w 200 w 51 w agc voltage v cc toko 617db - 1010 b4f 1000pf 1000pf 1 4 3 2 8 5 6 7 agc v cc 1000pf 1000pf 1000pf noise figure analyzer (source) noise figure analyzer (sense) 1 4 3 2 8 5 6 7 agc agc voltage v cc 1000pf 1000pf 1000pf network analyzer 51 w sw v cc 1000pf 200 w 51 w 200 w 51 w 1000pf 1000pf 1000pf sw 1000pf 1000pf 200 w 200 w 51 w agc voltage v cc toko 617db - 1010 b4f 1000pf 1000pf 1 4 3 2 8 5 6 7 agc v cc 1000pf 1000pf 1000pf sg spectrum analyzer agc sg sw 1000pf 1000pf 200 w 200 w 51 w agc voltage v cc toko input 617db - 1010 b4f 1000pf 1000pf 1 4 3 2 8 5 6 7 agc v cc 1000pf 1000pf 1000pf sg spectrum analyzer output agc sg
LA8120T no.8130 - 5 / 8 30 50 40 20 10 0 -10 -20 -30 -40 70 60 -0.5 4.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 gain - vagc characteristic v o l t a g e g a i n - d b vagc - v 50 60 30 40 20 10 0 70 10 20 30 40 50 60 70 80 90 100 gain - frequency characteristic v o l t a g e g a i n - d b frequency - mhz 30 35 20 15 25 10 5 0 40 10 15 20 25 50 30 35 40 45 noise figure - gain characteristic n o i s e f i g u r e - d b voltage gain - db -20 -10 -40 -50 -60 -30 -70 -80 -90 -100 2.4 2.7 1.8 1.5 1.2 2.1 0.9 0.6 0.3 0 0 3.0 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 intermodulation characteristic o u t p u t / t o n e - d b m v a g c - v input / tone - dbm -20 -10 -40 -50 -60 -30 -70 -80 -90 -100 2.4 2.7 1.8 1.5 1.2 2.1 0.9 0.6 0.3 0 0 3.0 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 intermodulation characteristic o u t p u t / t o n e - d b m v a g c - v input / tone - dbm -20 -10 -40 -50 -60 -30 -70 -80 -90 -100 2.4 2.7 1.8 1.5 1.2 2.1 0.9 0.6 0.3 0 0 3.0 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 intermodulation characteristic o u t p u t / t o n e - d b m v a g c - v input / tone - dbm p i n 5 : v c c pin5:gnd pin5:open im3 v a g c vagc o u t p u t output v cc = 5.0 v frequency = 45 mhz circuit1 v cc = 5.0 v vagc = 2.5 v circuit2 v cc = 5.0 v, pin5 : open frequency = 44 mhz, 45 mhz, circuit4 im3 v a g c o u t p u t output v cc = 5.0 v, pin5 : v cc frequency = 44 mhz, 45 mhz, circuit4 im3 v a g c vagc o u t p u t output v cc = 5.0 v, pin5 : gnd frequency = 44 mhz, 45 mhz, circuit4 v cc = 5.0 v frequency = 45 mhz circuit2 p i n 5 : v c c p i n 5 : g n d p i n 5 : o p e n p i n 5 : v c c pin5:gnd pin5:open the vertical axis (output/tone) on this graph shows the values displayed by the spectrum analyzer for circuit 4. the actual output power for the corresponding pins is given by the following formula. {output power [dbm]}= {displayed value [dbm]}+10 log (250 w /50 w )
LA8120T no.8130 - 6 / 8 30 50 40 0 20 10 -10 -20 -30 -40 70 60 -0.5 4.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 gain - vagc characteristic v o l t a g e g a i n - d b vagc - v 30 50 40 0 20 10 -10 -20 -30 -40 70 60 -0.5 4.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 gain - vagc characteristic v o l t a g e g a i n - d b vagc - v 30 50 40 0 20 10 -10 -20 -30 -40 70 60 -0.5 4.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 gain - vagc characteristic v o l t a g e g a i n - d b vagc - v 35 25 20 15 30 10 5 0 40 10 15 20 25 30 35 40 45 50 noise figure - gain characteristic n o i s e f i g u r e - d b voltage gain - db 35 25 20 15 30 10 5 0 40 10 15 20 25 30 35 40 45 50 noise figure - gain characteristic n o i s e f i g u r e - d b voltage gain - db 35 25 20 15 30 10 5 0 40 10 15 20 25 30 35 40 45 50 noise figure - gain characteristic n o i s e f i g u r e - d b voltage gain - db 8 5 2 5 2 0 v cc = 5.0 v pin5 : open, frequency = 45 mhz circuit1 8 5 2 5 2 0 v cc = 5.0 v pin5 : v cc , frequency = 45 mhz circuit1 pin5 : open, frequency = 45 mhz circuit2 8 5 2 5 2 0 pin5 : v cc , frequency = 45 mhz circuit2 8 5 2 5 2 0 pin5 : gnd, frequency = 45 mhz circuit2 8 5 2 5 2 0 8 5 2 5 2 0 v cc = 5.0 v pin5 : gnd, frequency = 45 mhz circuit1
LA8120T no.8130 - 7 / 8 50 60 55 40 45 35 30 25 20 70 65 10 100 20 30 40 50 60 70 80 90 gain - frequency characteristic v o l t a g e g a i n - d b frequency - mhz 50 60 55 40 45 35 30 25 20 70 65 10 100 20 30 40 50 60 70 80 90 gain - frequency characteristic v o l t a g e g a i n - d b frequency - mhz 50 60 55 40 45 35 30 25 20 70 65 10 100 20 30 40 50 60 70 80 90 gain - frequency characteristic v o l t a g e g a i n - d b frequency - mhz -20 -10 -40 -50 -60 -30 -70 -80 -90 -100 0 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 intermodulation characteristic o u t p u t / t o n e - d b m input / tone - dbm -20 -10 -40 -50 -60 -30 -70 -80 -90 -100 0 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 intermodulation characteristic o u t p u t / t o n e - d b m input / tone - dbm -20 -10 -40 -50 -60 -30 -70 -80 -90 -100 0 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 intermodulation characteristic o u t p u t / t o n e - d b m input / tone - dbm 2 5 85 20 v cc = 5.0 v pin5 : open vagc = 2.5 v circuit2 2 5 85 20 v cc = 5.0 v pin5 : v cc vagc = 2.5 v circuit2 2 5 8 5 2 0 2 5 8 5 2 0 2 5 85 20 v cc = 5.0 v pin5 : gnd vagc = 2.5 v circuit2 v cc = 5.0 v, pin5 : open frequency = 44 mhz, 45 mhz, circuit4 im3 output v cc = 5.0 v, pin5 : v cc frequency = 44 mhz, 45 mhz, circuit4 im3 output 2 5 8 5 2 0 2 5 8 5 2 0 2 5 8 5 2 0 2 5 8 5 2 0 v cc = 5.0 v, pin5 : gnd frequency = 44 mhz, 45 mhz, circuit4 im3 output the vertical axis (output/tone ) on this graph shows the values displayed by the spectrum analyzer for circuit 4. the actual output power for the corresponding pins is given by the following formula. {output power [dbm]}= {displayed value [dbm]}+10 log (250 w /50 w )
LA8120T no.8130 - 8 / 8 ps this catalog provides information as of february, 2005. specifications and information herein are subject to change without notice. n specifications of any and all sanyo products described or contained her ein 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 e quipment. 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. n 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 des ign, redundant design, and structural design. n 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 m ust not be exported without obtaining the export license from the authorities concerned in accordance with the above law. n no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photoc opying and recording, or any information storage or retrieval system, of otherwise, without the prior written permission of sanyo electric co., ltd. n 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. n information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed f or 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.
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