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ADMV8818SCCZ-EP-R2 Datasheet(PDF) 8 Page - Analog Devices |
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ADMV8818SCCZ-EP-R2 Datasheet(HTML) 8 Page - Analog Devices |
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8 / 36 page ![]() ADMV8818-EP Enhanced Product Rev. A | Page 8 of 36 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS GND GND GND GND GND GND RFIN GND GND GND GND GND GND RST 1 2 3 29 30 31 32 33 34 35 36 37 38 39 40 41 42 4 5 6 7 8 9 10 11 12 13 14 ADMV8818-EP TOP VIEW (Not to Scale) GND NOTES 1. EXPOSED PAD. THE EXPOSED PAD MUST BE CONNECTED TO THE RF AND DC GROUND. VSS1 (–2.5V) GND VDD2 (+3.3V) GND GND RFOUT GND GND GND GND VDD1 (+2.5V) GND GND Figure 3. Pin Configuration Table 5. Pin Function Descriptions Pin No. Mnemonic Description 1 to 6, 8 to 13, 15, 17, 19, 21, 23, 25 to 30, 32 to 35, 37, 38, 40, 42 to 56 GND Ground. Connect the GND pins to the RF and dc ground. 7 RFIN RF Input Pin. RFIN is dc-coupled and matched to 50 Ω. Do not apply an external voltage to RFIN. 14 RST Chip Reset. 3.3 V logic. Active low. The RST pin is internally pulled high with a 260 kΩ resistor. 16 SCLK Serial Peripheral Interface (SPI) Clock. 3.3 V logic. The SCLK pin is internally pulled low with a 260 kΩ resistor. 18 CS SPI Chip Select. 3.3 V logic. Active low. The CS pin is internally pulled low with a 260 kΩ resistor. 20 SDO SPI Data Output. 3.3 V logic. The SDO pin is internally pulled low with a 260 kΩ resistor. 22 SDI SPI Data Input. 3.3 V logic. The SDI pin is internally pulled low with a 260 kΩ resistor. 24 SFL SPI Fast Latch Enable. 3.3 V logic. Set SFL high to enable fast latching of filter states on each rising edge of CS. While SFL is in this mode, the SCLK, SDO, and SDI pins are not active. The SFL pin is internally pulled low with a 260 kΩ resistor. 31 VDD1 2.5 V Power Supply Pin. Place 0.1 µF and 100 pF decoupling capacitors close to VDD1. 36 RFOUT RF Output Pin. RFOUT is dc-coupled and matched to 50 Ω. Do not apply an external voltage to RFOUT. 39 VDD2 3.3 V Power Supply Pin. Place 0.1 µF and 100 pF decoupling capacitors close to VDD2. 41 VSS1 –2.5 V Power Supply Pin. Place 0.1 µF and 100 pF decoupling capacitors close to VSS1. EPAD Exposed Pad. The exposed pad must be connected to the RF and dc ground. |
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