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CA3127E датащи(PDF) 3 Page - Intersil Corporation |
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CA3127E датащи(HTML) 3 Page - Intersil Corporation |
3 / 7 page 5-3 Test Circuits FIGURE 1. VOLTAGE-GAIN TEST CIRCUIT USING CURRENT-MIRROR BIASING FOR Q2 FIGURE 2. 100MHz POWER-GAIN AND NOISE-FIGURE TEST CIRCUIT FIGURE 3A. POWER GAIN SET-UP FIGURE 3B. NOISE FIGURE SET-UP FIGURE 3. BLOCK DIAGRAMS OF POWER-GAIN AND NOISE-FIGURE TEST SET-UPS 7 8 4 2 3 6 GEN 10k Ω BIAS-CURRENT ADJ V+ RL 470 0.01 1 µF VO Q2 0.01 µF 470pF 51 Ω VI Q3 0.01 1 µF pF µF µF 470pF 1000 pF NOTES: 4. This circuit was chosen because it conveniently repre- sents a close approximation in performance to a proper- ly unilateralized single transistor of this type. The use of Q3 in a current-mirror configuration facilitates simplified biasing. The use of the cascode circuit in no way implies that the transistors cannot be used individually. 5. E.F. Johnson number 160-104-1 or equivalent. 4 3 2 13 12 14 6 7 5 8 SHIELD Q5 620 Ω Q2 C1 1.8pF 0.3 µH 1000pF VI OHMITE Z144 (NOTE 5) Q3 25k Ω 1000 pF 1000 pF 560 Ω 750 Ω 1% 1000 pF 8.2 k Ω 0.47 µH 1.5 - 8pF VO +12V C2 TEST POINT (NOTE 5) ATTN 100MHz BOONTON 91C RF VOLTMETER 12VDC POWER SUPPLY TEST SET GENERAL RADIO 1021-P1 100MHz GENERATOR 100MHz 100MHz NOISE FIGURE METER POST AMPLIFIER VHF NOISE SOURCE HEWLETT PACKARD HP343A TEST SET HEWLETT PACKARD HP342A 12VDC POWER SUPPLY 15VDC POWER SUPPLY CA3127 |
Аналогичный номер детали - CA3127E |
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Аналогичное описание - CA3127E |
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