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iMike78
Drop-in PCB replacement for the Google Nest Mini v2 with XMOS integration. Inspired by Onju Voice and Home Assistant Voice PE hardware.
| Reference | Value | Description |
|---|---|---|
| Q3 | BC847B | NPN transistor, base/collector/emitter |
| U1 | TLV62569DRL | High Efficiency Synchronous Buck Converter with forced PWM, Adjustable Output 0.6V-5.5V, 2A, SOT-563-6 |
| U2,U3 | TPS62130 | 3A Step-Down Converter with DCS-Control, Adjustable Output Voltage, 3-17V Input Voltage, QFN-16 |
| U5 | ESP32-S3R8 | |
| U6,U9 | W25Q128JVSIQ | 128Mbit / 16MiB Serial Flash Memory, Standard/Dual/Quad SPI, 2.7-3.6V, SOIC-8 |
| U7 | MPR121QR2 | |
| U8 |
| U11 | SN74LVC125APWR |
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| U12 | TLV73333PDBVR |
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| U13 | TAS5805MPWPR |
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| U14 | SN74AHCT1G125DBVR | Single Buffer Gate Tri-State, Low-Voltage CMOS |
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| AE1,AE2 | 2450AT18A100E |
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| C2,C3,C12,C13,C17,C93,C95,C98,C99 | 22uF | Unpolarized capacitor |
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| C4,C5,C39,C52,C120,C128,C136,C138 | 10uF | Unpolarized capacitor |
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| C6,C7,C133 | 10nF | Unpolarized capacitor |
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| C8,C9,C94,C104 | 4.7uF | Unpolarized capacitor |
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| C10,C11 | 220pF | Unpolarized capacitor |
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| C14,C15,C21,C26,C27,C29-C31,C34,C36,C37,C41,C44,C47-C50,C54,C72,C79,C81,C83-C87,C92,C96,C97,C102,C105-C112,C115,C119,C121-C127,C129-C132,C134,C135,C137,C139 | 100nF | Unpolarized capacitor |
|---|
| C16 | 22pF | Unpolarized capacitor |
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| C20,C28,C32,C35,C38,C40,C51,C53,C58,C82,C113,C114,C116-C118 | 1uF | Unpolarized capacitor |
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| C22,C23,C25,C42,C43,C45,C56,C57,C59 | 12pF | Unpolarized capacitor |
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| C24,C55 | 1.2pF | Unpolarized capacitor |
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| C33,C46 | 2.4pF | Unpolarized capacitor |
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| C78 | 2.2uF | Unpolarized capacitor |
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| C88-C91 | 0.22uF | Unpolarized capacitor |
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| C100,C101 | 0.68uF | Unpolarized capacitor |
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| C103 | 220uF | Polarized capacitor |
|---|
| D1,D2,D4 | LRB520S-30T1G | Diode |
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| D3 | RB521S30T1G |
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| FB1,FB2 | 120R | Ferrite bead, 120Ω @ 100MHz, 2A |
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| J1 | Conn_01x05 | Generic connector, single row, 01x05, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J2 | C6 PROGRAM POGO | Five-pin pogo programming interface matching J2: GND, BOOT, RESET, USB D- and USB D+ |
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| J3 | P4 PROGRAM POGO | Five-pin pogo programming interface matching J2: GND, BOOT, RESET, USB D- and USB D+ |
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| J5 | 1775443-2 |
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| L1-L3 | 2.2uH | Inductor |
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| L4,L10 | 3.3nH | Inductor |
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| L5,L9 | 2.7nH | Inductor |
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| L6,L8 | 2.2nH | Inductor |
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| L7 | 24nH | Inductor |
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| L11,L12 | 10uH | Inductor |
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| LED1,LED6 | SK6812D-EC3210R |
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| LED2-LED5 | SK6805-EC20 |
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| MK1-MK3 | MMICT390200012 |
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| POWER_IN1 | FH34SRJ-10S-0.5SH_50_ | -55℃~+105℃ 10P Dual-sided contacts / top and bottom connection Horizontal attachment 0.5mm SMD,P=0.5mm,Surface Mount,Right Angle FFC, FPC (Flat Flexible) Connector Assemblies ROHS |
|---|
| R1-R6 | 100k | Resistor |
|---|
| R7,R10 | 49.9R | Resistor |
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| R8 | 210k | Resistor |
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| R9 | 40k | Resistor |
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| R11 | 68.1k | Resistor |
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| R12 | 22.1k | Resistor |
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| R13,R14 | 499k | Resistor |
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| R15,R16,R31-R35,R59,R74 | 10k | Resistor |
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| R17,R20-R28,R67,R68,R70,R71 | 0R | Resistor,Zero-ohm jumper, 0805, 2 A |
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| R18,R19 | 4.7k | Resistor |
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| R29 | 200k | Resistor |
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| R30 | 1M | Resistor |
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| R52,R53,R66,R72 | 47k | Resistor |
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| R54 | 3.3k | Resistor |
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| R55 | 470k | Resistor |
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| R56,R57,R60-R65 | 100R | Resistor |
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| R58 | 1k | Resistor |
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| R73 | 47R | Resistor |
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| Y1-Y3 | 40MHz | 40 MHz ±10ppm Crystal 9pF 50 Ohms 4-SMD, No Lead |
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