ACU2108S3 catv/tv/cable modem upconverter mmic advanced product information - rev 0 features integrated monolithic gaas upconverter designed for digital and analog tv very low oscillator phase noise low noise figure & low distortion low power consumption small size can be shut down remotely operates from 3.3 to 5 volt power supply high reliability applications description the acu2108 is a monolithic gaas ic incorporating all upconverter functions of a double conversion catv, cable modem and tv tuner: gain block, oscillator and a double balanced mixer. the oscillator is optimized to meet the stability and phase noise requirements of 256qam digital tv, while the amplifier and mixer retain the low distortion necessary for analog signals. the part is supplied in a low profile 16-lead modified soic package and it requires only a single polarity 3.3 to 5 volt power supply. this upconverter ic is well suited for double conversion tuner designs where small size, low cost, low auxiliary parts count and a no-compromise performance when handling both digital and analog tv signals is important. it lets tuner manufacturers reduce costs by lower- ing component count and dispensing with labor-intensive production alignment steps, while improving performance and reliability. catv/tv tuners cable telephony tuners cable modem tuners absolute maximum ratings parameter absolute maximum v dd /v if /v osc (pins 1,10,14,& 16) 9 v dc v rf /v tune (pins 6 & 11) 0 v dc rf input voltage +60 dbmv storage temperature - 55 to +200 c soldering temperature 260 c soldering time 5 sec. operating case temperature - 40 to + 85 c s3 16 pin soic package
2 ACU2108S3 functional block diagram notes: 1. as measured in anadigics test fixture 2. 128 channels @ + 7 dbmv 3. 128 channels, 99% modulation @ 15 khz 4. two tones @ -15 dbm (33.75 dbmv) each 5. at 10 khz offset dbc = db below carrier dbmv = dbm + 48.75 phase 8 5 6 7 splitter osc 2 3 4 1 mxr 9 12 11 10 15 14 13 16 low noise amp r in +90 - 90 if 1, +v dd gnd gnd rf in gnd gnd* v dd lo t ckt gnd osc out gnd if 2 , +v dd shut down/ current adjust inductor * varactor return. do not connect to common ground electrical specifications parameter min. typ. max. unit conversion gain 1 5v 3.3v 5.0 4.0 8.0 7.0 - db gain flatness 1 5v 3.3v - 0.8 1.8 - db ssb noise figure 1 5v 3.3v - 6.5 7.5 - db cso 2 5v 3.3v - -60 -53 - dbc ctb 2 5v 3.3v - -67 -60 - dbc cross modulation 3 - -62 -60 dbc 2-tone 2nd order input ip 4 5v 3. 3v - 95 88 - dbmv 2-tone 3rd order input ip 4 5v 3 .3v - 70 66 - dbmv lo phase noise 5 - -86 - dbc/hz lo power to prescaler -7 -0 - dbm lo to rf leakage - 20 - dbm lo to if leakage - 34 - dbm rf to if isolation 30 36 - db tuning voltage 1 1.0 - 27 v vddif 3.14 5.0 5.25 v vddlo 3.14 5.0 5.25 v iddif 65 85 ma iddlo 80 95 ma power consumption 5 v 3.3v 770 400 900 mw
3 ACU2108S3 notes: l = printed inductor rg = gain control/impedance match resistor (240 w for 8 db gain) ri = current adjust resistor 2.7 w for 60 ma mixer current) * = apply -2v dc for shutdown, 0< vdc < 0.3 for 60 ma mixer current * acu2108 0.01 uf 100 pf 3.3 uh 3.3 uh balun 1:1 100 pf if out shut down/ * current adjust 0.01 uf 0.01 uf rf in 3.3uh 0.01 uf 330 uf tant 5 v dc (v dd osc.) tuning voltage 0.10 m f 68 nh 47 w isv245 9.1 pf 100 pf osc out (to prescaler) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 5 v dc (v dd mixer) l ri rg 1k w 0.01 m f 12k w + parameter min typ max units frequency rf if lo 50 1000 950 - - - 860 1300 2060 mhz v tune 1.5 - 27 volts v ddif 3.14 5 5.25 volts v ddlo 3.14 5 5.25 volts i ddif - 65 85 ma i ddlo - 80 95 ma operating ranges
0.244 0.158 0.050 0.068 0.020 0.040 0.006 base plane seating plane 0.394 0.016 0.010 0.386 0.152 0.229 0.065 0.054 bsc 0.064 0.013 0.010 0.004 8 7 6 5 3 2 1 4 16 15 14 13 12 11 10 9 package outline important notice anadigics, inc. reserves the right to make changes to its products or discontinue any product at any time without notice. the advanced product data sheets and product specifications contained in this data sheet are subject to change prior to a products formal introduction. the information in this data sheet has been carefully checked and is assumed to be reliable. however, anadigics assumes no responsibility for inaccuracies. anadigics strongly urges customers to verify that the information they are using is current before placing orders. warning anadigics products are not intended for use in life support appliances, devices, or systems. use of an anadigics product in any such application without written consent is prohibited. anadigics, inc. 35 technology drive warren, new jersey 07059 tel: (908) 668-5000 fax: (908) 668-5132 http://www.anadigics.com mktg@anadigics.com ACU2108S3
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