10 Reference Design
The ATWILC3000A application schematics for the different supported Host interfaces are shown in this chapter.
Host Interface – SPI Reference Schematic
Note: It is recommended to add test
points for pins 14, 15, 16, 17, 22, 23 and 26 in the design.
Host Interface – SDIO Reference Schematic
Note: It is recommended to add test
points for pins 14, 15, 16, 17, 22, 23 and 26 in the design.
Bill of Materials (BoM)
The following table provides the Bill of Materials for the application schematic. The BoM is the same for both the Host interfaces, except for the pull-up resistor R8.
| Item | Quantity | Reference | Value | Description | Manufacturer | Part Number |
|---|---|---|---|---|---|---|
| 1 | 15 | R1, R2, R3, R4, R5, R6, R7, R9, R10, R11, R12, R27, R28, L4, L10 | 0Ω | Resistor,Thick Film, 0Ω, 0201 | Panasonic® | ERJ-1GN0R00C |
| 2 | 1 | R8 | 1M | Resistor,Thick Film, 1 MΩ, 0201 | Panasonic | ERJ-1GEJ105C |
| 3 | 1 | C1 | 0.01 µF | Capacitor MC, SMD, 10V, 0.01 µF, K X7R 0201 | Yageo Corporation | CC0201KRX7R6BB103 |
| 4 | 5 | C3, C5, C6, C7, C8 | 0.1 µF | Capacitor MC, SMD, 6.3V, 0.1 µF, K X5R 0201 | Yageo Corporation | CC0201KRX5R5BB104 |
| 5 | 1 | C20 | 1 µF | Capacitor MC, SMD, 6.3V, 1 µF, K X5R 0402 0.56 | Yageo Corporation | CC0402KRX5R5BB105 |
| 6 | 1 | C4 | 2.2 µF | Capacitor MC, SMD, 6.3V, 2.2 µF, M X5R 0402 0.5 | Taiyo Yuden | JMK105BJ225MV-F |
| 7 | 1 | C10 | 10 µF | Capacitor MC, SMD, 6.3V, 10 µF, M X5R 0402 0.5 | Murata Electronics® | GRM155R60J106M |
| 8 | 2 | C15, C16 | 5.6 pF | Capacitor MC, SMD, 25V, 5.6 pF, D C0G 0201 0.3 | Walsin Technology Corp. | 0201N5R6D250CT |
| 9 | 3 | C19, C23, C25 | 10 pF | Capacitor MC, SMD, 25V, 10 pF, J C0G 0201 0.3 | Murata Electronics | GRM0335C1E100JA01D |
| 10 | 3 | C17, C32, C33 | 1.0 pF | Capacitor MC, SMD, 25V, 1 pF, B C0G 0201 0.3 | Murata Electronics | GRM0335C1E1R0BA01D |
| 11 | 2 | C2, C9 | 1.5 pF | Capacitor Ceramic, 1.5 pF, 0.25 pF, C0G, 0201, 25V, -55-125°C | Murata Electronics | GRM0335C1H1R5CA01 |
| 12 | 1 | L1 | 1 µH | Inductor, 1 µH, M, 950 mA, 0603 | Murata Electronics | LQM18PN1R0MFRL |
| 13 | 1 | L5 | 15 nH | Inductor, 15 nH, J, 300 mA, 0402 | Murata Electronics | LQG15HS15NJ02D |
| 14 | 3 | L2, L8, L9 | 3.3 nH | Inductor, 3.3 nH, 0.2 nH, Q = 14@500 MHz, SRF = 8 GHz, 0201, -55-125°C | Murata Electronics | LQP03TN3N3C02D |
| 15 | 3 | FB2, FB3, FB6 | BLM15AG121SN1 | Bead, CH, 120Ω, 550 mA, 0402 | Murata Electronics | BLM15AG121SN1 |
| 16 | 1 | Y1 | 26 MHz | Crystal, 26 MHz, 50 PPM, 8 pF, SMD-4P, 2.55 * 2.05 | Taitien Electronics Co., Ltd. | A0183-X-001-3 |
| 17 | 2 | TP1, TP2 | Non-component | Test Point, Surface Mount, 0.040” sw w/0.25” Hole | — | — |
| 18 | 1 | U1 | ATWILC3000A | Single Chip, IEEE 802.11 b/g/n, Link Controller with Integrated Bluetooth® | Microchip Technology Inc. | ATWILC3000A-MU-T |
| 19 | 1 | E1 | ANTENNA | Antenna, 2.4-2.5 GHz, 50Ω, -40 to +85°C | — | — |