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ADL9005ACPZN-R7 датащи(PDF) 20 Page - Analog Devices |
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ADL9005ACPZN-R7 датащи(HTML) 20 Page - Analog Devices |
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20 / 24 page ![]() ADL9005 Data Sheet Rev. 0 | Page 20 of 24 APPLICATIONS INFORMATION BASIC CONNECTIONS The basic connections for operating the ADL9005 are shown in Figure 74. Connect the recommended capacitor values to the ac ground pins (ACG1, ACG2, ACG3, and ACG4) as shown in Figure 74. The bias current is set by connecting a resistor between RBIAS and VDD. When using 5 V VDD, a resistor value of 300 Ω is recommended to achieve an IDQ of 80 mA. Table 9 shows the resulting IDQ for the various RBIAS values where the resistor is tied to 5 V. Decouple the RBIAS pin with a 100 pF capacitor as shown in Figure 74. Refer to ADL9005-EVALZ user guide (UG-1859) for the recommended part numbers of the manufacturers for all the external components required to operate the ADL9005. Table 9. Recommended Bias Resistor Values RBIAS (Ω) IDQ (mA) IDQ_AMP (mA) IDQ_BIAS (mA) 180 90 82.3 7.7 300 80 73.6 6.4 450 70 64.8 5.2 650 60 55.8 4.2 1000 50 46.8 3.2 1500 40 37.4 2.6 2 1 3 4 5 6 18 17 16 15 14 13 R1 300Ω C4 100pF CIN 0.1µF RF INPUT RFIN RBIAS C9 0.01µF RFOUT/ VDD C7 4.7µF C10 100pF C11 0.01µF C6 4.7µF DRAIN BIASING NETWORK RF OUTPUT VDD (5V) ADL9005 Figure 74. Typical Application Circuit |
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