TC3918 REV1_20070503 Packaged Single-Bias Low Noise PHEMT GaAs FETs FEATURES PHOTO ENLARGEMENT ! 0.7 dB Typical Noise Figure at 12 GHz ! High Associated Gain: Ga = 13 dB Typical at 12 GHz ! 18dBm Typical Power at 12 GHz ! 13 dB Typical Linear Power Gain at 12 GHz ! Lg = 0.25 µm, Wg = 160 µm ! 100 % DC Tested ! Micro-X Metal Ceramic Package DESCRIPTION The TC3918 is a single-bias low noise ceramic micro-x packaged device with TC1101 PHEMT GaAs FETs, which is designed to provide the single power supply application. The device is suitable for oscillator, low noise amplifier in a wide range of commercial applications. All devices are 100% DC tested to assure consistent quality. ELECTRICAL SPECIFICATIONS (TA=25 °C) Symbol Conditions NF Noise Figure at VDS = 2 V, f Ga Associated Gain at VDS = 2 V, f MIN = 12GHz = 12GHz 11 MAX 0.7 1.2 UNIT dB 13 dB 13 dB P1dB Output Power at 1dB Gain Compression Point, f GL Linear Power Gain, IDS Drain-Source Current at VDS = 4 V 25 mA Rth Thermal Resistance 230 °C/W f = 12GHz VDS = 4 V TYP 16.5 = 12GHz VDS = 4 V 11 ABSOLUTE MAXIMUM RATINGS (TA=25 °C) TYPICAL NOISE PARAMETERS (TA=25 °C) VDS = 4 V Symbol VDS Pin PT TCH TSTG Parameter Drain-Source Voltage RF Input Power, CW Continuous Dissipation Channel Temperature Storage Temperature Rating 7.0 V 18 dBm 150 mW 175 °C -65°C to +175°C HANDLING PRECAUTIONS: The user must operate in a clean, dry environment. Electrostatic Discharge (ESD) precautions should be observed at all stages of storage, handling, assembly, and testing. The static discharge must be less than 300V. Frequency (GHz) 2 4 6 8 10 12 14 16 18 NFopt (dB) 0.46 0.49 0.52 0.56 0.64 0.73 0.85 1.08 1.33 GA(dB) 17.7 16.1 14.6 13.2 12.0 11.0 10.6 10.5 10.2 Γopt MAG 0.80 0.69 0.56 0.42 0.31 0.23 0.21 0.26 0.41 ANG 20 42 69 103 146 -161 -97 -19 72 Rn/50 0.67 0.58 0.45 0.32 0.19 0.14 0.13 0.18 0.38 TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science-Based Industrial Park, Hsin-She Shiang, Tainan County, Taiwan, R.O.C. Web-Site: www.transcominc.com.tw Phone: 886-6-5050086 Fax: 886-6-5051602 P1/3 TC3918 REV1_20070503 0.2 75 90 15 165 10.0 3.0 4.0 5.0 2.0 0.8 1.0 0.6 0.4 45 0. 4 0.2 30 15 0 10.0 0 S12 5 13 0 3. 0 4. 0 5. Swp Max 18 GHz 60 2. 0 1.0 Mag Max 0.1 Swp Max 18GHz 0 12 6 0. (TA=25 °C) VDS = 4 V 105 0.8 TYPICAL SCATTERING PARAMETERS 0 -180 -10.0 -105 Swp Min 2 GHz 1.0 2. 0 6 0. 0.8 -1 35 Swp Max 18GHz S22 0 3. 0 4. 0 5. 0.2 15 10.0 3.0 4.0 5.0 2.0 0.8 1.0 0.4 0 0 0.2 10.0 165 0.6 .0 -2 60 75 -0.8 -1.0 90 45 0. 4 -0 .6 -3 .0 -4 . -5. 0 0 5 13 30 15 0 0 -6 Swp Max 18 GHz -75 0.025 Per Div Swp Min 2GHz -90 105 0 12 Mag Max 10 -3 0 50 -1 5 -4 .4 -0 -15 -165 -1 20 S11 2 -0. -180 -15 S11 MAG 1.0037 0.9618 0.9101 0.8490 0.7843 0.7184 0.6503 0.5768 0.5321 0.4670 0.4302 0.4003 0.4038 0.4313 0.4645 0.5138 0.5504 S21 ANG -36.81 -55.65 -71.88 -87.59 -101.26 -116.51 -131.33 -147.39 -164.51 174.87 154.30 128.28 101.23 73.02 49.63 30.09 15.19 MAG 4.9472 4.8706 4.7020 4.4937 4.3157 4.1587 4.0117 3.9100 3.8820 3.8295 3.8617 3.9013 3.9206 3.8471 3.7261 3.4825 3.2919 .0 -2 -1.0 -0 .6 -105 -1 20 Swp Min 2 GHz -0.8 .4 -0 5 -4 -75 FREQUENCY (GHz) 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 0 -6 -1 35 S21 -90 2 Per Div 2 -0. -3 0 Swp Min 2GHz S12 ANG 151.92 131.81 114.73 98.67 84.48 69.36 55.37 41.80 28.54 14.03 1.13 -15.12 -31.94 -50.20 -68.48 -85.38 -100.35 MAG 0.0297 0.0409 0.0502 0.0574 0.0618 0.0660 0.0665 0.0667 0.0669 0.0690 0.0647 0.0656 0.0631 0.0663 0.0663 0.0699 0.0736 -3 .0 -4 -5..0 0 50 -1 -10.0 -165 S22 ANG 61.58 48.73 40.35 30.54 22.18 12.79 4.84 -3.78 -9.08 -18.73 -23.54 -32.69 -39.91 -53.76 -67.67 -82.26 -100.33 MAG 0.7379 0.7117 0.6877 0.6615 0.6355 0.6046 0.5806 0.5505 0.5182 0.4748 0.4659 0.4455 0.4519 0.4355 0.4571 0.4426 0.4585 ANG -26.31 -38.42 -47.93 -56.85 -65.26 -74.72 -82.01 -89.25 -95.25 -104.16 -110.86 -123.28 -137.07 -154.84 -172.48 169.29 153.28 TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science-Based Industrial Park, Hsin-She Shiang, Tainan County, Taiwan, R.O.C. Web-Site: www.transcominc.com.tw Phone: 886-6-5050086 Fax: 886-6-5051602 P2/3 TC3918 REV1_20070503 OUTLINE DIMENSIONS (in inch) Tape & Reel Package Orientation (in mm) 0.5 +0.1/-0.0 2.0 +/- 0.05 A 0.30 +/- 0.05 4.0 1.75 0.5 MIN. 5.5 +/- 0.05 Bo 12.0 +/- 0.3 A1 Ko Section A-A 8.0 Ao A Ao = A1 = Bo = B1 = Ko = Standard Reel Size Standard Reel Quantity 7.0 mm 1.45 mm 7.0 mm 0.9 mm 2.0 mm 7” 1000 TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science-Based Industrial Park, Hsin-She Shiang, Tainan County, Taiwan, R.O.C. Web-Site: www.transcominc.com.tw Phone: 886-6-5050086 Fax: 886-6-5051602 P3/3