ATTENUATORS THERMOPAD TEMPERATURE COMPENSATING ATTENUATORS SOR Ta ETE THERMOPAD TEMPERATURE COMPENSATING ATTENUATORS The Thermopad is a patented (U.S. Patent # 5,332,981), absorptive microwave attenuator, which provides power dissipation that varies with temperature. The device can be used in any application that requires a known amount of attenuation change for a particular temperature shift. This is particularly useful for maintaining the output of gain stages, mixers, power dividers, and other signa! processing components over temperature. in applications from DC - 18 GHz, EMC's Thermopad is the ideal temperature compensation solution for cost, performance, and reliability, The Thermopad can replace closed loop temperature compensation circuits with a single chip device requiring no bias or control. It excels in multiple signal applications such as cellular telephone and PCN because of its low cost and because it produces no signal distortion. In high reliability, military, and spacecraft applications, the Thermopad reduces system complexity and cost while improving overall reliability. The Thermopad is available in a wide variety of package styles. All styles are available on tape and reel packaging. EMC Technology, Inc. 1971 Old Cuthbert Rd. Cherry Hill, NJ 08034 Phone: 609-429-7800 Fax: 609-429-6814 E-Mail: sales@emct.com Web Site: www.EMCT.com 49ae Wee EN THERMOPAD TEMPERATURE COMPENSATING ATTENUATORS SPECIFICATIONS: Frequency Range: DC - 6 GHz, TVA Series DC - 18 GHz, MTVA Series Part Size Average Power Attenuation Accuracy: + 0.5 dB TVA Negative Shifting Planar 2 watts TCA Tolerance: + 0,001 dB/dB/C TVA Positive Shifting Planar 0.2 watts VSWR: 1.30 maximum at 1 GHz MTVA Negative Shifting Series 0.2 watts Operating Temperature: -5 aC to +150C CTVA Negative Shifting Series 2 watts Substrate: Alumina Termination Material: Thick film, nickel barrier with solder plated finish Resistive Element: Thick film SELECTION GUIDE: e Determine polarity and the amount of compensation required by TVA, W1, W3 DC - 6 GHz your crcurt MTVA,G -0.003 DC - 18 GHz Refer to the "Thermopad Temperature Shift Cross Reference -0.004 chart on the next page to select the minimum room temperature 0.005 attenuation and temperature coefficient of attenuation (TCA) MTVA, -0.006 DC - 12.4 GHz which yields the required compensation. The available -0.007 configurations are listed by type in the Available Configuration MTVAW3, WB1, W1 DC - 12.4 GHz of Thermopad chart on the next page. Determine the part number as shown in the example on page 23. EMC Technology, Inc. 1971 Old Cuthbert Rd. Cherry Hill, NJ 08034 Phone: 609-429-7800 Fax: 609-429-6814 20 E-Mail: sales@emct.com @ Web Site: www.EMCT.comATTENUATORS THERMOPAD TEMPERATURE COMPENSATING ATTENUATORS THERMOPAD TEMPERA Ens SYOLVNNALLY URE SHIFT CROSS REFERENCE CHART ATION SHIFT IN dB PER 10C) TCA* Attenuation at 25C dB/dB/C 1dB 2 dB 3 dB 4dB 5 dB 6 dB 7 4B 8 dB 9 dB 10 dB -0.003 -0.03 -0.06 -0.09 -0.12 -0.15 -0.18 -0.21 -0.24 - -0.30 -0.004 -0.04 -0.08 -0.12 -0.16 -0.20 -0.24 -0.28 -0.32 - -0.40 -0.005 -0.05 0.10 -0.15 -0.20 -0.25 -0.30 -0.30 -0.50 -0.006 -0.06 -0.12 -0.18 -0.24 -0.30 -0.36 -0.42 - -0.007 -0.07 -0.14 -0.21 -0.28 -0,35 -0.42 -0.49 -0.56 -0.63 -0.70 -0.009 -0.09 -0.18 -0.27 -0.36 -0.54 +0.003 +0.03 +0.09 +0.18 +0.005 +0.05 +0.15 +0.30 +0.007 +0.07 +0.14 +0.21 +0.42 *TCA = Temperature Coefficient of Attenuation AVAILABLE CONFIGURATION OF THERMOPAD Temperature Attenuation at 25C Coefficient TCA* Code dB/dB/C = 1 dB Sso2 GB 4dB 5dB 6dB 7dB 8dB 90B 10dB NO3 -0,003 M,T M,T MT M,T M,T T T T T No4 -0.004 M M MT M,T M,T T T NOS -0.005 MT MT. OMT. OMT. MT. MT T NO6 -0.006 Be pee De OE Pe Crp T NO? 0.007 T CIMT CIMT CIMT MT MT T T T T NO9 -0.009 Lo r Io TMT P03 +0.003 T T T POS +0,005 T T T PO7 +0.007 T T T T The configurations most popular with designers are indicated in shaded area. * TCA = Temperature Coefficient of Attenuation. T = TVAseries chips M = MTVA series chips CT = CTVA(75 OHM version of TVA) P> See drawings on pages 24 and 25. EMC Technology, Inc. 1971 Old Cuthbert Rd. Cherry Hill, NJ 08034 Phone: 609-429-7800 Fax: 609-429-6814 E-Mail: sales@emct.com Web Site: www.EMCT.com 21ATTENUATORS ENGINEERING EVALUATION KIT A NEW THERMOPAD ENGINEERING EVALUATION KIT! With all the values and configurations available, the possibilities are endless. We have selected several popular values and metallization schemes to demonstrate the amazing feats the Thermopad can perform for your amplifier design - and put them all in one place! The Thermopad Engineering Evaluation Kit (TVA-EE-Kit). The kit includes samples of both planar chips and the popular W3 (triple wrapped termination) chips in the following values: 3 pleces TVA0100N09 3 pieces TVAQ300NO07 3 pieces TVA0300N07W3 3 pieces TVA0600N07 The kit also includes our new Thermopad Selection Software Tool. Use it to select the Thermopad that enhances your amplifiers gain over temperature. The tool displays the resulting performance and allows you to select the Thermopad that will optimize temperature compensation and insertion loss. The Thermopad Selection Tool also tells you the actual Thermopad performance, which can be utilized for circuit simulation and optimization in other programs. in addition, this invaluable tool provides the user with application notes, recommended circuit board layouts, and mechanical drawings. The TVA-EE-Kit is available from stock at your local distributor, Call for yours today! EMC Technology, Inc. 1971 Old Cuthbert Rd. @ Cherry Hill, NJ 08034 @ Phone: 609-429-7800 Fax: 609-429-6814 22 E-Mail: sales@emct.com Web Site: www.EMCT.comae eno 8 EN = _ m = ba a n THERMOPAD TEMPERATURE COMPENSATING ATTENUATORS ORDERING INFORMATION METALLIZATION OPTIONS Planar (no code) Planar device for flip chip mounting offers the best RF performance and lowest cost. Triple Wrap (W3) Metallization wraps around input, output, and ground terminals. Permits inspectable solder fillets when flip chip mounting. See Application Note 006 on page 92. Single Wrap (W1) = Metallization wraps around ground terminal only. Full backside metallization. Pretinned (5) Pretinning (with Sn 62) improves solderability (available on all of the above options). Single Wrap (WB1) Metallization wraps around ground terminal only. Full backside metallization. Inout and output (MTVA series only) terminals have gold metallization for wire bonding. Gold (G) Planar device with gold metallization. Typically used for wire bonding. (MTVA series only) LX XXX | yo [OO | ya LX X| LX XX | LX] Configuration Code Attenuation Direction of i Metallization Pretinning (3 or 4 alpha digits) Value Code Shift (Nor P) Shift Numeric Option (blank 2or (blank or S) TVA, CTVA, MTVA (2 numeric Digits 3 alphanumeric digits) | digits) Temperature Coefficient of Attenuation (TCA) Code Example: P/N TVA0300N07W33S is TVA configuration code, 3 dB nominal value at +25 C, negative shifting thermopad with TCA of 0.007dB/dB/C, triple wrap with pretinning. Thermopads are marked with attenuation value and temperature coefficient of attenuation code as follows: XX X XX Attenuation Value TCA Direction Value of Shift (two 2 numeric digits of Shift digits x 103 dB/dB/C) EMC Technology, Inc. 1971 Old Cuthbert Rd. Cherry Hill, NJ 08034 Phone: 609-429-7800 Fax: 609-429-6814 E-Mail: sales@emct.com Web Site: www.EMCT.com 23ATTENUATORS THERMOPAD TEMPERATURE COMPENSATING ATTENUATORS 0.145 [*" (3,6amm) 0.039 TYP 0.060 (0,99mm) [" (1,52mm) 0.145 0.030 (3,68mm) 0.123 (0,76mm) ZA VA 0.039 TYP | 0.060 0.020 + .oos Steam) _s (0,99mm) 7 "| (1,52mm) 7 [7 @.tmm) @. } bn (ieee) 10mm ~~ WRAP AROUND 0.021 .003 0.030 {0,76mm) (0,53mm) GROUND Mie Yj Yi TVA Planar Configuration oh TVA W1 Configuration 7h [oh on ; hy Se ey 0.147 (3,73mm) "| 0.040 TYP (1,02mm) [~ oes A 0.030 A (0,51mm) 0.123 t (3,42mm) an (sarn) | r_ 0.039 TYP | 0.060 0.020 .003 ________ (099mm) [* (1,52mm) 7 [7 stem , WRAP AROUND 2,422 Zi A, GROUND (3.40mm} 0.015 0,021 .003 (2,38mm) Ot Z (0,53mm) H WRAP AROUND t+ (ieen TERMINAL, TYP 0.015 TYP J | 0.062 {0,38mm) (1,57mm) TVA W3 Configuration 7. CTVA Planar Configuration 7 > See Application Note 003 on page 85. EMC Technology, Inc. 1971 Old Cuthbert Rd. Cherry Hill, NJ 08034 Phone: 609-429-7800 Fax: 609-429-6814 E-Mail: sales@emct.com Web Site: www.EMCT.com 24ATTENUATORS THERMOPAD TEMPERATURE COMPENSATING ATTENUATORS 0.078 (191mm) [*~ 0.018 TYP (0,48mm) r (1,91 0.025 mm) (0,64mm) 0.018 TYP_,| 0.012 2.003 0.061 (0,48mm) [ | [7 somm (1,55mm) L , ! po 1 0.028 0.060 (0-64mm) 0.010 (1,52mm) | A (0,25mm) a WRAP AROUND -~ 0.016 +008 cota GROUND (o4tmemy (0,25mm) MTVA Planar Configuration 7 MTVA W181 Configuration 0.077 ~~ (1,96mm) 0.019 TYP (048mm) L 2 EB 0 0.061 A Samm) (1,55mm) f e277 2z1 0.016 +.o03 0.010 (041mm) {0,25mm) | 0.015 WRAP AROUND ~~ (a.a8mm) GROUND _ yy WRAP AROUND TERMINAL, TYP - NN 7A "7 iy 0.021TYP LL. 0.025 (053mm) (0,63mm) MTVA W3 Configuration A Dhue P> See Application Note 003 on page 85. EMC Technology, Inc. 1971 Old Cuthbert Rd. @ Cherry Hill, NJ 08034 Phone: 609-429-7800 Fax: 609-429-6814 E-Mail: sales@emct.com Web Site: www.EMCT.com 25 SYOLVNNILLYATTENUATORS Es THERMOPAD TEMPERATURE COMPENSATING ATTENUATORS TVAO300NO7 TVAQ300NO7 4 14 4 3. 7 13 7 Y I a a 3 ae sl 12 I 3 c oe 5 = 4 z 2 7 > zg - 2. - AA - a atl pees - 1 0 1 2 3 4 5 6 -55 -35 -15 5 25 45 65 a5 105 125 Frequency (GHz) Temperature (C) Typical Thermopaa RF Performance Thermopad Attenuation vs. Temperature for TVA0300N07 TVA0300N07 MTVAO300N05 MTVA0300N05 4 15 5 / 4s N 1.4 as / yw Z 4 38 IN | a 2 , hog S s 7 | 2 3 we = 12 gD 5 Jobe E 3 = g > = - 25 25 1A a i. oa 2 2 4 6 8 10 12 14 16 18 20 15 -55 -35 -15 5 28 45 65 85 105 125 Frequency (GHz) Temperature (C) Thermopad Attenuation vs. Temperature for ical Th d RF P Typical Thermopad? RF Performance MTVA0300N05 MTVA0300N05 EMC Technology, Inc. 1971 Old Cuthbert Rd. Cherry Hill, NJ 08034 Phone: 609-429-7800 Fax: 609-429-6814 26 E-Mail: sales@emct.com Web Site: www.EMCT.com