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ADRF6612ACPZ-R7 数据表(PDF) 35 Page - Analog Devices |
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ADRF6612ACPZ-R7 数据表(HTML) 35 Page - Analog Devices |
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35 / 57 page ![]() Data Sheet ADRF6612 Rev. A | Page 35 of 57 APPLICATIONS INFORMATION The ADRF6612 mixer is designed to downconvert radio frequencies (RF) primarily between 700 MHz and 2800 MHz to lower intermediate frequencies (IF) between 30 MHz and 450 MHz. Figure 95 depicts the basic connections of the mixer. It is recommended to ac couple the RF and LO input ports to prevent nonzero dc voltages from damaging the RF balun or LO input circuit. A RFIN capacitor value of 22 pF is recommended. EXTVCOIN+ EXTVCOIN– DECL3 VCC2 VCC3 VCC6 VCC4 VCC5 RFBCT2 RFIN2 VCC8 RFBCT1 RFIN1 LDO3 SPI CONTROL DIVIDE BY 1 TO 32 PLL CHARGE PUMP 3.3V LDO VCO LDO SPI 2.5V LDO LO DIV 3.3V LDO VCO VCO VCO 4 5 9 10 11 12 15 14 13 16 17 18 19 22 23 40 21 39 38 41 20 42 43 47 37 2 44 45 46 27 28 29 25 26 30 35 36 32 34 VCC7 31 3 6 24 GND 1 48 33 INT N-DIVIDER 2.5V LDO 7 N-DIVIDER REFIN DIVIDER PFD LOCK DETECT VPTAT SCAN 10µF (0603) 0.1µF (0402) 6.8pF (0402) 22pF (0402) 2700pF (0402) 3.16kΩ (0402) 10kΩ (0402) 10kΩ (0402) 22pF (0402) +5V 150pF (0402) 150pF (0402) 150pF (0402) 330nH 330nH RFIN1 RFIN2 IFOUT1 REFIN 1000pF (0402) 50Ω (0402) 100pF (0402) LOIN 100pF (0402) 100pF (0402) EXPOSED PAD VCO BUFFER LDO VCO BAND SWITCH LDO 22pF (0402) 10pF (0402) 10pF (0402) 10pF (0402) 10pF (0402) 10pF (0402) 10µF (0603) 10pF (0402) 10pF (0402) 10pF (0402) 10pF (0402) 10pF (0402) 10pF (0402) 10pF (0402) 10µF (0603) 10µF (0603) 10µF (0603) 10µF (0603) 10µF (0603) 10nF (0603) 10nF (0603) 10µF (0603) 10µF (0603) 10µF (0603) 10µF (0603) 0.1µF (0402) 10µF (0603) 0.1µF (0402) 10µF (0603) 0.1µF (0402) VCC1 10µF (0603) 0.1µF (0402) 100pF (0402) 100pF (0402) 100pF (0402) DECL4 100pF (0402) DECL5 100pF (0402) LDO4 100pF (0402) 10pF (0402) 10pF (0402) 10pF (0402) 100pF (0402) 100pF (0402) 100pF (0402) 10µF (0603) 0.1µF (0402) 10µF (0603) 0.1µF (0402) 10µF (0603) 0.1µF (0402) 10µF (0603) 0.1µF (0402) 10µF (0603) 0.1µF (0402) 10µF (0603) 0.1µF (0402) 10µF (0603) 0.1µF (0402) 8 +5V 150pF (0402) 150pF (0402) 150pF (0402) 330nH 330nH IFOUT2 LOOUT 22pF (0402) Figure 95. Basic Connections Diagram |
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