component
AD9838BCPZ-RL7
Public Made by Adomby adom
Analog Devices Direct Digital Synthesis (DDS), LFCSP-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "AD9838BCPZ-RL7",
"brief": "Analog Devices Direct Digital Synthesis (DDS), LFCSP-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"name": "AVDD",
"type": "power_in",
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{
"number": "2",
"name": "DVDD",
"type": "power_in",
"description": "Positive power supply for the digital section, 2.3 V to 5.5 V, with a 0.1 µF decoupling capacitor to DGND."
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{
"number": "3",
"name": "CAP/2.5V",
"type": "passive",
"description": "2.5 V regulator output generated from DVDD when DVDD exceeds 2.7 V, needs a 100 nF typical capacitor to DGND; short to DVDD if DVDD is 2.7 V or less."
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{
"number": "4",
"name": "DGND",
"type": "power_in",
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"description": "Digital clock input that sets the DDS output frequency reference, accuracy and phase noise."
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{
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"name": "FSELECT",
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"description": "Frequency select input choosing FREQ0 or FREQ1 for the phase accumulator; tie to CMOS high or low when the FSEL bit is used."
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{
"number": "7",
"name": "PSELECT",
"type": "input",
"description": "Phase select input choosing PHASE0 or PHASE1 to add to the phase accumulator output; tie to CMOS high or low when the PSEL bit is used."
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{
"number": "8",
"name": "RESET",
"type": "input",
"description": "Active-high digital input that resets the internal registers to 0 (midscale analog output) without affecting addressable registers."
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{
"number": "9",
"name": "SLEEP",
"type": "input",
"description": "Active-high digital input that powers down the DAC when high, same function as the SLEEP12 control bit."
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{
"number": "10",
"name": "SDATA",
"type": "input",
"description": "Serial data input for the 16-bit serial data word."
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{
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"name": "FSYNC",
"type": "input",
"description": "Active-low frame synchronization control input; taking it low indicates a new word is being loaded."
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{
"number": "13",
"name": "SIGN BIT OUT",
"type": "output",
"description": "Logic output providing the comparator output or the NCO MSB, enabled by the OPBITEN bit and selected by the SIGN/PIB bit."
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{
"number": "14",
"name": "VIN",
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"description": "Comparator input used to generate a square wave from the filtered sinusoidal DAC output."
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"description": "Analog ground."
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{
"number": "16",
"name": "IOUT",
"type": "output",
"description": "High-impedance current output; connect a nominal 200 Ω load resistor to AGND, with a 20 pF capacitor to AGND recommended."
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{
"number": "17",
"name": "IOUTB",
"type": "output",
"description": "Complementary current output; tie to AGND through a 200 Ω load resistor or directly to AGND."
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