Attenuator 50 to 2000 MHz Technical Data UTF-035 Features Description Pin Configuration • Frequency Range: 50 to 2000 MHz The UTF-035 is a thin-film voltagecontrolled RF attenuator that operates from 50 to 2000 MHz. The RF attenuation will change a fixed increment of nearly 3 dB per volt, over the full control voltage range. Utilizing PIN diodes, device attenuation vs. voltage linearity is typically ±0.6 dB flat over the complete control voltage range. The UTF-035 is only unique because the linearizer is housed in the same single TO-8 package weighing 2.1 grams. UTF-030, TO-8F • Attenuation Range: 2 to 25 dB (Typ) • Linearity: ±0.6 dB (Typ) • 5 µs Switching Speed • Linearizer and Attenuator in One Package Applications • Open and Closed Loop Gain Control GROUND RF IN RF OUT V+ CONTROL TC-1 RF IN RF OUT V+ • AGC Circuits Maximum Ratings Parameter Continuous Voltage (VCC/Vcont) Continuous RF Input Power (CW or Pulse) Operating Case Temperature Storage Temperature “R” Series Burn-In Temperature Maximum +17/–15 Volts +23 dBm –55 to +125°C –62 to +150°C +125°C Thermal Characteristics θJC Active Transistor Power Dissipation Junction Temperature Above Case Temperature Weight: (typical) 2.1 grams 100°C/W 185/145/190 mW 18.5/14.5/19.0°C 2 Electrical Specifications (Measured in 50 Ω system @ +15 VDC nominal) Symbol BW — — — — — IP3 — — — — Characteristic Frequency Range Attenuation Min. Insert Loss, VC = –10 V 50 to 1000 MHz (Max.) 1000-2000 MHz (Max.) Max. Attenuation Loss, VC = –2 V 50 to 2000 MHz (Max.) Gain Flatness (Max.) Attenuation vs. Voltage Linearity VC = –2 to –10 V Input VSWR (Max.) Output VSWR (Max.) Two Tone 3rd Order Intercept Point Switching Speed Phase Shift Supply Voltage/Current Control Voltage/Current Typical Guaranteed Specifications TC = 25°C TC = 0 to 50°C TC = –55 to +85°C Unit 50-2000 50-2000 50-2000 MHz 2.0 2.5 2.5 3.0 3.0 3.5 dB dB 25.5 ± 0.7 23.5 ± 1.5 20.0 ±2.0 dB dB ± 0.6 1.6:1 1.6:1 +45.0 5 .002/dB 15/45 –10/35 ± 1.5 2.0:1 2.0:1 — — — — — ±2.0 2.0:1 2.0:1 — — — — — dB — — dBm µs Deg/MHz V/mA V/mA 3 UTF Switching Speed Control Voltage Attenuation –4.1 to –2.4 Volts –20 to –25 dB 5 dB step at Maximum Attenuation –8.3 to –10 Volts –7 to –2 dB 5 dB step at Minimum Attenuation –10 to –8.3 Volts –2 to –7 dB 5 dB step at Minimum Attenuation 4 UTF Switching Speed (continued) Control Voltage Attenuation –2 to –10 Volts –26 to –2 dB Step through full Attenuation range. Maximum to Minimum –10 to –2 Volts –2 to –26 dB Step through full Attenuation range. Minimum to Maximum –2.4 to –4.1 Volts –25 to –20 dB 5 dB step at Maximum Attenuation 5 Typical Performance Over Temperature (@ +15 VDC unless otherwise noted) Key: +25°C +85°C -55°C Phase vs. Control Voltage Input/Output VSWR 2.00 2 GHz 1.75 60 40 VSWR 1 GHz 20 –8V –9V 1.50 –10V 1.25 500 MHz 0V 50 MHz 0 –2 –3 –4 –5 –6 –7 –8 Control Voltage, VDC –9 1.00 .05 –10 .25 1.75 2.00 40 Attenuation, dB –1 –2 –3 –4 –5 .05 30 Frequency = 50 MHz 20 10 0 .25 .50 .75 1.00 1.25 1.50 1.75 2.00 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 Control Voltage, VDC Frequency, GHz Attenuation vs. Control Voltage Attenuation 0 40 Attenuation, dB .75 1.00 1.25 1.50 Frequency, GHz Attenuation vs. Control Voltage Insertion Loss @ –10 VDC Control 0 Attenuation, dB .50 –10 30 Frequency = 1000 MHz –5 20 –9 10 –8 –10 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 Control Voltage, VDC Attenuation vs. Control Voltage Attenuation, dB –7 0 –6 –15 –5 –4 –20 40 Attenuation, dB –3 30 –25 –2 Frequency = 2000 MHz –1 0 20 –30 10 0 0 –1 –2 –3 –4 –5 –6 –7 Control Voltage, VDC –8 –9 –10 –35 .05 .25 .50 .75 1.00 1.25 1.50 Frequency, GHz 1.75 2.00 Control Voltage, VDC Relative Phase, Deg 80 6 SWITCHING SPEED ATTENUATION VS. CONTROL VOLTAGE VCONTROL Volts Attenuation dB –2.0 27.5 –4.0 20.8 –6.0 14.7 –8.0 8.6 –10.0 2.5 ∆t1 Attenuation Level VCONTROL Volts NOTE 1: 5 dB Step at Max Attenuation ∆t = 0.7 µs Step Through Full Attenuation ∆t = 10 µs @ +25°C (Approx. 3 dB/Volt) UTF-035 SIMPLIFIED SCHEMATIC APPLICATIONS +15V IF Amp UTF-035 VCONTROL VREF –2V to –10V RFIN RFOUT RFIN OP Amp VCONTROL -VC Closed Attenuator RFOUT Open VREF – + AGC DET CLOSED OR OPEN LOOP GAIN CONTROL 7 Automatic Network Analyzer Measurements (Typical production unit @ +25°C ambient) S-Parameters FREQ GHz Bias=15 Volts Control Voltage= –10V Bias Current = 45.9 mA Control Current= –36.3 mA S21 S11 Mag Ang dB S 22 S 12 Ang .050 .11 –73.5 –1.7 –38.8 .100 .08 –86.4 –1.7 –69.6 .150 .07 –108.5 –1.7 –106.6 .200 .07 –134.9 –1.7 –143.1 .250 .07 –163.4 –1.7 –179.4 .300 .06 168.0 –1.7 144.4 .350 .06 141.1 –1.8 108.3 .400 .07 115.6 –1.8 72.3 .450 .07 90.4 –1.8 36.2 .500 .08 64.1 –1.8 .2 .550 .09 36.3 –1.9 –35.8 .600 .09 7.3 –1.9 –71.8 .650 .09 –22.1 –1.9 –107.7 .700 .08 –51.8 –2.0 –143.6 .750 .07 –81.3 –2.0 –179.6 .800 .06 –111.4 –2.0 144.5 .850 .06 –142.3 –2.0 108.5 .900 .06 –175.5 –2.1 72.5 .950 .07 151.5 –2.1 36.5 1.000 .09 119.1 –2.1 .5 1.050 .10 67.7 –2.2 –35.5 1.100 .12 58.3 –2.3 –71.3 1.150 .13 31.0 –2.3 –107.1 1.200 .13 6.6 –2.4 –142.8 1.250 .13 –14.4 –2.4 –178.5 1.300 .13 –32.4 –2.4 145.8 1.350 .13 –49.5 –2.5 110.1 1.400 .14 –67.6 –2.5 74.3 1.450 .14 –87.5 –2.5 38.5 1.500 .14 –108.7 –2.5 2.6 1.550 .14 –130.8 –2.5 –33.2 1.600 .12 –152.7 –2.6 –69.0 1.650 .11 –173.8 –2.6 –104.9 1.700 .09 165.3 –2.6 –140.9 1.750 .08 143.5 –2.6 –176.8 1.800 .08 118.6 –2.6 147.3 1.850 .08 89.6 –2.6 111.3 1.900 .09 57.6 –2.7 75.2 1.950 .10 26.0 –2.7 39.2 2.000 .12 –3.5 –2.8 3.2 2.050 .13 –30.4 –2.8 –32.8 2.100 .14 –54.0 –2.9 –68.7 2.150 .16 –74.6 –2.9 –104.5 2.200 .17 –92.6 –3.0 –140.5 2.250 .18 –110.1 –3.0 –176.3 2.300 .20 –128.5 –3.1 147.9 2.350 .22 –148.5 –3.1 112.2 2.400 .23 –169.9 –3.1 76.5 2.450 .22 168.5 –3.1 40.9 2.500 .21 147.2 –3.1 5.0 Linearization Range: .050 to 2.000 GHz dB Ang Mag –1.7 –1.7 –1.7 –1.7 –1.7 –1.7 –1.8 –1.8 –1.8 –1.8 –1.9 –1.9 –1.9 –2.0 –2.0 –2.0 –2.1 –2.1 –2.1 –2.2 –2.2 –2.3 –2.4 –2.4 –2.4 –2.5 –2.5 –2.5 –2.5 –2.5 –2.5 –2.6 –2.6 –2.6 –2.6 –2.6 –2.7 –2.7 –2.7 –2.8 –2.8 –2.9 –2.9 –3.0 –3.0 –3.1 –3.1 –3.1 –3.2 –3.2 –38.8 –69.6 –106.6 –143.1 –179.4 144.4 108.3 72.2 36.2 .2 –35.8 –71.8 –107.8 –143.7 –179.7 144.4 108.5 72.5 36.5 .4 –35.6 –71.5 –107.2 –142.8 –178.4 145.9 110.1 74.2 38.3 2.6 –33.2 –69. 1 –105.0 –140.9 –176.8 147.2 111.2 75.2 39.2 3.2 –32.8 –68.8 –104.6 –140.5 –176.4 147.9 112.2 76.4 40.7 4.9 .11 .08 .07 .07 .07 .07 .07 .07 .06 .05 .05 .05 .06 .07 .08 .08 .08 .08 .08 .09 .11 .13 .14 .14 .14 .12 .10 .08 .07 .07 .06 .06 .06 .07 .07 .06 .05 .03 .02 .03 .03 .03 .02 .01 .04 .07 .09 .09 .09 .07 Ang –91.11 –121.87 –162.60 151.79 105.12 59.52 15.11 –29.78 –77.29 –129.47 174.28 121.67 76.57 36.24 –2.62 –42.16 –84.88 –132.96 174.43 120.12 69.38 22.57 –21.44 –64.19 –107.50 –152.51 159.26 106.46 52.31 2.40 –38.62 –70 .96 –97.68 –123.54 –152.22 174.67 136.84 89.11 3.74 –86.96 –137.43 –174.94 159.49 –113.44 –129.68 –163.34 158.89 118.20 72.27 15.55 K GPDEL ns PHASE DEG 1.06 1.06 1.06 1.07 1.07 1.07 1.08 1.08 1.08 1.08 1.09 1.09 1.09 1.09 1.10 1.10 1.10 1.11 1.11 1.12 1.12 1.13 1.13 1.14 1.14 1.14 1.15 1.15 1.15 1.16 1.16 1.16 1.16 1.17 1.17 1.17 1.18 1.19 1.19 1.20 1.20 1.20 1.21 1.21 1.22 1.22 1.23 1.23 1.23 1.24 .33 .33 .23 .20 .19 .18 .18 .18 .18 .18 .17 .18 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .17 .16 .16 .16 .17 .17 .17 .17 .18 .17 .17 .17 .17 .17 4.58 1.81 .78 .24 –.09 –.28 –.45 –.57 –.65 –.70 –.71 –.75 –.75 –.76 –.76 –.69 –.68 –.63 –.59 –.56 –.48 –.44 –.42 –.33 –.29 –.14 –.13 –.13 –.10 .04 .07 .12 .20 .23 .37 .42 .54 .73 .88 1.07 8 Automatic Network Analyzer Measurements (Typical production unit @ +25°C ambient) S-Parameters FREQ GHz Bias=15 Volts Control Voltage= –2V Bias Current = 24.1 mA Control Current= –17.4 mA S21 S11 Mag Ang dB S 12 Ang .050 .10 –103.6 –27.6 –27.4 .100 .05 –133.2 –27.4 –64.1 .150 .04 –163.1 –27.3 –98.9 .200 .03 165.9 –27.3 –133.3 .250 .03 134.9 –27.2 –167.5 .300 .03 105.7 –27.2 158.4 .350 .03 79.8 –27.1 124.3 .400 .03 56.8 –27.0 90.1 .450 .03 36.5 –27.0 55.9 .500 .03 17.7 –26.9 21.8 .550 .03 –.8 –26.9 –12.4 .600 .02 –19.7 –26.8 –46.7 .650 .02 –39.9 –26.7 –80.9 .700 .02 –64.4 –26.7 –115.2 .750 .01 –97.9 –26.6 –149.6 .800 .01 –146.7 –26.6 176.1 .850 .01 161.8 –26.5 141.6 .900 .02 126.6 –26.5 107.2 .950 .03 101.6 –26.4 72.7 1.000 .04 80.7 –26.4 38.2 1.050 .05 61.6 –26.4 3.7 1.100 .06 43.3 –26.3 –30.8 1.150 .07 25.6 –26.3 –65.3 1.200 .08 7.9 –26.3 –99.6 1.250 .09 –9.6 –26.3 –133.9 1.300 .10 –27.0 –26.3 –168.0 1.350 .11 –44.5 –26.2 157.9 1.400 .11 –62.1 –26.2 123.6 1.450 .12 –79.9 –26.1 89.2 1.500 .12 –98.0 –26.0 54.7 1.550 .12 –116.8 –25.9 20.2 1.600 .11 –136.5 –25.8 –14.4 1.650 .11 –157.5 –25.8 –49.0 1.700 .10 179.8 –25.7 3.7 1.750 .09 154.1 –25.6 –118.4 1.800 .08 125.3 –25.6 –153.2 1.850 .08 93.3 –25.5 172.1 1.900 .09 60.3 –25.5 137.2 1.950 .09 28.7 –25.4 102.4 2.000 .11 .2 –25.4 67.6 2.050 .13 –25.5 –25.3 32.8 2.100 .14 –49.0 –25.3 –2.0 2.150 .16 –70.9 –25.2 –36.8 2.200 .18 –91.6 –25.2 –71.5 2.250 .19 –111.8 –25.1 –106.2 2.300 .20 –131.3 –25.1 –140.9 2.350 .21 –150.5 –25.0 –175.5 2.400 .21 –169.8 –24.9 149.9 2.450 .21 170.9 –24.8 115.3 2.500 .20 151.4 –24.7 80.5 Linearization Range: .050 to 2.000 GHz S 22 dB Ang Mag –27.6 –27.4 –27.4 –27.3 –27.2 –27.2 –27.1 –27.1 –27.0 –27.0 –26.9 –26.8 –26.8 –26.7 –26.7 –26.6 –26.5 –26.5 –26.5 –26.4 –26.4 –26.4 –26.4 –26.4 –26.4 –26.3 –26.3 –26.2 –26.1 –26.0 –26.0 –25.9 –25.8 –25.7 –25.7 –25.6 –25.5 –25.5 –25.4 –25.4 –25.3 –25.3 –25.2 –25.2 –25.1 –25.1 –25.0 –24.9 –24.8 –24.7 –27.4 –64.1 –99.0 –133.3 –167.5 158.3 124.2 90.1 55.9 21.7 –12.5 –46.7 –81.0 –115.2 –149.6 176.1 141.6 107.1 72.6 38.1 3.6 –30.9 –65.3 –99.7 –133.9 –168.0 157.8 123.6 89.2 54.7 20.1 –14.4 –49.0 –83.8 –118.5 –153.2 172.1 137.3 102.4 67.6 32.7 –2.2 –36.8 –71.6 –106.3 –140.8 –175.5 149.8 115.2 80.4 .09 .05 .04 .04 .04 .03 .03 .03 .03 .04 .04 .05 .05 .04 .03 .03 .02 .02 .03 .04 .04 .04 .04 .04 .04 .03 .02 .01 .01 0.00 .01 .02 .03 .04 .05 .06 .06 .06 .05 .04 .03 .04 .05 .07 .08 .09 .09 .08 .07 .05 Ang –137.22 158.81 97.27 42.95 –5.44 –53.39 –106.40 –165.29 138.49 92.42 53.27 17.68 –16.19 –51.06 –88.79 –133.27 168.38 109.59 64.00 29.18 .74 –24.97 –48.99 –72.61 –97.22 –121.11 –141.99 –161.15 174.82 66.48 –2.51 –29.03 –54.74 –80.93 –107.71 –135.61 –164.50 165.01 130.91 89.57 31.70 –35.81 –86.31 –124.97 –158.56 169.47 137.37 103.88 66.17 19.22 K 280.55 273.56 269.88 266.59 263.10 259.97 256.88 253.08 249.99 246.55 243.14 239.78 236.67 233.18 230.35 227.47 224.69 222.29 219.90 217.82 215.89 214.83 214.07 213.63 213.01 211.38 208.16 204.43 200.80 196.98 193.65 190.37 187.30 184.37 181.52 179.04 176.52 173.95 171.67 169.44 166.96 164.42 161.77 159.02 156.10 153.27 150.26 147.25 144.15 141.04 GPDEL ns PHASE DEG .19 .19 .14 .12 .1 1 .11 .11 .11 .11 .11 .10 .11 .10 .11 .11 .10 .10 .11 .11 .11 .10 .11 .11 .11 .11 .10 .12 .12 .12 .11 .12 .12 .12 .12 .11 .12 .11 .12 .11 .11 .11 .12 .12 .13 .13 .13 .13 .13 .13 .13 1.40 –.04 –.54 –.73 –.74 –.66 –.61 –.48 –.39 –.31 –.17 –.04 .03 .13 .17 .32 .38 .44 .40 .38 .53 .58 .52 .46 .40 .50 .45 .28 .15 .14 .11 –.09 –.17 –.24 –.31 –.45 –.45 –.49 –.52 –.35 9 Product Options UTF – 025 R Model Number Prefix UTFPPF- Screening Option blank = No Screening required R = R-Series Screening Model Number For more information on R-Series screening, see Reliability Screening, Pub. 5963-3240E. UTFC – 025 – 1 Model Number Prefix UTFCConnector Option For TC-1 case, the only connector option available is the -1. The -1 option consists of an SMA Female connector on both the input and output (see note). Model Number Note: No R-Series screening is available in the TC-1 case as the case is non-hermetic. Case Drawings TO-8F .300 TYP .175 +.002 .017 - 001 .150 TYP GROUND RF OUT 3 4 .150 TYP 1 45 .031 .031 GLASS RING .060 DIA TYP (4X) 2 .50 .450 DIA DIA MAX 0.185 ±0.015 RF IN 5 CASE GROUND CONTROL V+ .075 APPROXIMATE WEIGHT 2.1 GRAMS NOTES (UNLESS OTHERWISE SPECIFIED): 1. DIMENSIONS ARE SPECIFIED IN INCHES 2. TOLERANCES: xx ± .02 xxx ± .010 Case Drawings TC-1 .820 1.000 RFOUT RF IN V+ .460 .890 PRODUCT MARKING AREA AGC (IF REQUIRED) .38 (2) PL .460 DC INPUT .500 .350 .310 .890 .350 SMA JACK (FEMALE) (2) PL .310 .19 .100 GND .24 .640 .180 .905 2-56 UNC-2B x .15 DEEP THREADED INSERT (4) PL .250 .095 .570 TYPICAL WEIGHT WITH CONNECTORS = 21.5 GRAMS NOTES: 1. THE TC-1 CASE IS A NON-HERMETIC CASE. 2. THE ONLY CONNECTOR OPTION AVAILABLE FOR THE TC-1 CASE IS THE –1, SMA FEMALE CONNECTORS AT BOTH INPUT AND OUTPUT PORTS. NOTES (UNLESS OTHERWISE SPECIFIED): 1. DIMENSIONS ARE SPECIFIED IN INCHES 2. TOLERANCES: xx ± .02 xxx ± .010 Contact Teledyne Microwave Solutions: 650-691-9800 650-962-6845 fax Check for updates: www.teledynemicrowave.com