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ADF7901BRUZ-RL71 Scheda tecnica(PDF) 7 Page - Analog Devices |
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ADF7901BRUZ-RL71 Scheda tecnica(HTML) 7 Page - Analog Devices |
7 / 12 page ADF7901 Rev. A| Page 7 of 12 Pin No. Mnemonic Function 21 DVDD Voltage Supply for VCO and PA Section. It should be supplied with 3.0 V. Decoupling capacitors to the ground plane should be placed as close as possible to this pin. 22 PA_EN This pin is used to enable the power amplifier. It should be modulated with the OOK data in OOK mode. In FSK mode, it should be enabled when the PLL is locked. 23 RSET External Resistor. Sets charge pump current and some internal bias currents. Use 3.6 kΩ as default. 24 CREG2 A 2.2 μF capacitor should be added at CREG2 to reduce regulator noise and improve stability. A reduced capacitor improves regulator power-on time but can cause higher spurs. |
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