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Up to 6 GHz Medium Power Silicon Bipolar Transistor Technical Data AT-42070 Features * High Output Power: 21.0 dBm Typical P1 dB at 2.0 GHz 20.5 dBm Typical P1 dB at 4.0 GHz * High Gain at 1 dB Compression: 15.0 dB Typical G1 dB at 2.0 GHz 10.0 dB Typical G1 dB at 4.0 GHz * Low Noise Figure: 1.9 dB Typical NFO at 2.0 GHz * High Gain-Bandwidth Product: 8.0 GHz Typical fT * Hermetic Gold-ceramic Microstrip Package different functions. The 20 emitter finger interdigitated geometry yields a medium sized transistor with impedances that are easy to match for low noise and medium power applications. This device is designed for use in low noise, wideband amplifier, mixer and oscillator applications in the VHF, UHF, and microwave frequencies. An optimum noise match near 50 up to 1 GHz, makes this device easy to use as a low noise amplifier. The AT-42070 bipolar transistor is fabricated using Hewlett-Packard's 10 GHz fT Self-Aligned-Transistor (SAT) process. The die is nitride passivated for surface protection. Excellent device uniformity, performance and reliability are produced by the use of ionimplantation, self-alignment techniques, and gold metalization in the fabrication of this device. 70 mil Package Description Hewlett-Packard's AT-42070 is a general purpose NPN bipolar transistor that offers excellent high frequency performance. The AT-42070 is housed in a hermetic, high reliability gold-ceramic 70 mil microstrip package. The 4 micron emitter-to-emitter pitch enables this transistor to be used in many 5965-8912E 4-164 AT-42070 Absolute Maximum Ratings Symbol VEBO VCBO VCEO IC PT Tj TSTG Parameter Emitter-Base Voltage Collector-Base Voltage Collector-Emitter Voltage Collector Current Power Dissipation [2,3] Junction Temperature Storage Temperature Units V V V mA mW C C Absolute Maximum[1] 1.5 20 12 80 600 200 -65 to 200 Thermal Resistance [2,4]: jc = 150C/W Notes: 1. Permanent damage may occur if any of these limits are exceeded. 2. TCASE = 25C. 3. Derate at 6.7 mW/C for TC > 110C. 4. The small spot size of this technique results in a higher, though more accurate determination of jc than do alternate methods. See MEASUREMENTS section "Thermal Resistance" for more information. Electrical Specifications, TA = 25C Symbol |S21E|2 P1 dB G1 dB NFO GA fT hFE ICBO IEBO CCB Parameters and Test Conditions[1] Insertion Power Gain; VCE = 8 V, IC = 35 mA Power Output @ 1 dB Gain Compression VCE = 8 V, IC = 35 mA 1 dB Compressed Gain; VCE = 8 V, IC = 35 mA Optimum Noise Figure: VCE = 8 V, IC = 10 mA Gain @ NFO; VCE = 8 V, IC = 10 mA Gain Bandwidth Product: VCE = 8 V, IC = 35 mA Forward Current Transfer Ratio; VCE = 8 V, IC = 35 mA Collector Cutoff Current; VCB = 8 V Emitter Cutoff Current; VEB = 1 V Collector Base Capacitance[1]: VCB = 8 V, f = 1 MHz Units f = 2.0 GHz f = 4.0 GHz f = 2.0 GHz f= 4.0 GHz f = 2.0 GHz f = 4.0 GHz f = 2.0 GHz f = 4.0 GHz f = 2.0 GHz f = 4.0 GHz dB dBm dB dB dB GHz -- A A pF Min. 10.5 Typ. Max. 11.5 5.5 21.0 20.5 15.0 10.0 1.9 3.0 14.0 10.5 8.0 30 150 270 0.2 2.0 0.28 Note: 1. For this test, the emitter is grounded. 4-165 AT-42070 Typical Performance, TA = 25C 20 P1 dB (dBm) 1.0 GHz 24 2.0 GHz 24 P1 dB (dBm) 10 V 6V 4V 20 16 12 P1dB 16 |S21E|2 GAIN (dB) 2.0 GHz 20 4.0 GHz P1dB 2.0 GHz 12 16 8 G1 dB (dB) 4.0 GHz 12 G1 dB (dB) G1dB 16 4.0 GHz 10 V 6V 4V 4 8 14 G1dB 12 10 0 10 20 30 IC (mA) 40 50 0 0 10 20 30 IC (mA) 40 50 4 0 10 20 30 IC (mA) 40 50 Figure 1. Insertion Power Gain vs. Collector Current and Frequency. VCE = 8 V. Figure 2. Output Power and 1 dB Compressed Gain vs. Collector Current and Frequency. VCE = 8 V. Figure 3. Output Power and 1 dB Compressed Gain vs. Collector Current and Voltage. f = 2.0 GHz. 40 35 30 MSG 24 21 18 GAIN (dB) GA GAIN (dB) 25 20 15 10 5 0 0.1 0.3 0.5 1.0 3.0 6.0 FREQUENCY (GHz) MAG |S21E|2 15 12 9 6 NFO 4 3 2 1 1.0 2.0 0 3.0 4.0 5.0 NFO (dB) 3 0 0.5 FREQUENCY (GHz) Figure 4. Insertion Power Gain, Maximum Available Gain and Maximum Stable Gain vs. Frequency. VCE = 8 V, IC = 35 mA. Figure 5. Noise Figure and Associated Gain vs. Frequency. VCE = 8 V, IC = 10mA. 4-166 AT-42070 Typical Scattering Parameters, Common Emitter, ZO = 50 , TA = 25C, VCE = 8 V, IC = 10 mA Freq. S11 S21 GHz Mag. Ang. dB Mag. Ang. 0.1 .70 -49 28.5 26.56 154 0.5 .69 -137 21.5 11.85 105 1.0 .69 -165 16.0 6.34 85 1.5 .68 -179 12.7 4.33 72 2.0 .69 169 10.3 3.26 62 2.5 .69 164 8.5 2.64 56 3.0 .70 157 6.9 2.22 48 3.5 .70 151 5.6 1.91 39 4.0 .69 144 4.5 1.68 30 4.5 .68 137 3.5 1.50 22 5.0 .68 128 2.7 1.37 14 5.5 .68 117 2.0 1.26 5 6.0 .70 107 1.2 1.15 -3 dB -36.0 -29.6 -27.2 -27.4 -25.6 -25.4 -23.8 -22.4 -21.4 -20.4 -19.4 -18.3 -17.6 S12 Mag. .016 .033 .044 .043 .052 .054 .065 .076 .085 .096 .107 .121 .132 S22 Ang. 77 34 29 37 42 46 52 51 55 49 50 45 44 Mag. .91 .50 .40 .38 .37 .37 .39 .41 .43 .46 .48 .48 .48 Ang. -18 -41 -44 -48 -54 -55 -63 -71 -77 -83 -87 -91 -98 AT-42070 Typical Scattering Parameters, Common Emitter, ZO = 50 , TA = 25C, VCE = 8 V, IC = 35 mA Freq. S11 S21 GHz Mag. Ang. dB Mag. Ang. 0.1 .52 -95 33.4 46.52 139 0.5 .66 -163 23.1 14.33 95 1.0 .67 179 17.3 7.36 80 1.5 .67 169 13.9 4.97 69 2.0 .68 160 11.4 3.74 60 2.5 .69 157 9.6 3.04 55 3.0 .69 151 8.1 2.55 47 3.5 .69 145 6.8 2.20 39 4.0 .68 139 5.7 1.93 20 4.5 .67 132 4.7 1.74 22 5.0 .67 123 4.0 1.59 13 5.5 .67 113 3.2 1.46 5 6.0 .69 103 2.5 1.34 -4 A model for this device is available in the DEVICE MODELS section. dB -40.0 -34.4 -29.6 -28.0 -27.3 -23.8 -22.8 -21.4 -20.2 -19.3 -18.0 -17.2 -16.4 S12 Mag. .010 .019 .033 .040 .053 .065 .072 .086 .097 .109 .126 .138 .152 S22 Ang. 50 46 51 59 59 65 65 59 60 54 50 46 40 Mag. .77 .34 .28 .27 .27 .28 .28 .30 .33 .36 .38 .39 .38 Ang. -29 -42 -41 -44 -51 -53 -62 -72 -80 -85 -90 -94 -102 AT-42070 Noise Parameters: VCE = 8 V, IC = 10 mA Freq. GHz 0.1 0.5 1.0 2.0 4.0 NFO dB 1.0 1.1 1.5 1.9 3.0 opt Mag .05 .06 .10 .23 .45 Ang 15 75 126 172 -145 RN/50 0.13 0.13 0.12 0.11 0.17 4-167 70 mil Package Dimensions .040 1.02 4 EMITTER .020 .508 BASE 1 COLLECTOR 3 2 EMITTER .004 .002 .10 .05 .070 1.70 Notes: (unless otherwise specified) 1. Dimensions are in mm 2. Tolerances in .xxx = 0.005 mm .xx = 0.13 .495 .030 12.57 .76 .035 .89 4-168 |
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