ducktop2
EwoudVV
Custom 16-inch LattePanda Mu laptop and cyberdeck motherboard designed in KiCad 10
Components (111)
| Reference | Value | Description |
|---|---|---|
| Q330 | 2N7002KT1G VHF PTT/suspend fail-mute shunt | |
| Q331 | 2N7002KT1G UHF PTT/suspend fail-mute shunt | |
| Q332 | BSS84LT1G codec-loss force-mute | |
| U1 | AP2112K-3.3 600mA daughterboard logic LDO | |
| U40 | MAX-M10S GNSS | |
| U41 | SN74LVC3G34 GNSS input isolation | |
| U70 | TPS54302 RADIO_DB_5V -> RADIO_4V0 | |
| U240 | PE42820B-X 2m/VHF 43dBm-CW RF switch | |
| U241 | SN74LVC1G373DCKR VHF transmit-safe RF-select latch | |
| U242 | SN74LVC3G34DCUR VHF fail-safe control buffer | |
| U243 | SN74LVC1T45 VHF TXD 4V-to-3V3 translator | |
| U250 | PE42820B-X 70cm/UHF 43dBm-CW RF switch | |
| U251 | SN74LVC1G373DCKR UHF transmit-safe RF-select latch | |
| U252 | SN74LVC3G34DCUR UHF fail-safe control buffer | |
| U253 | SN74LVC1T45 UHF TXD 4V-to-3V3 translator | |
| U260 | SN74LVC2G04DCKR PTT request inverter | |
| U261 | SN74LVC2G32DCUR dual-radio PTT interlock | |
| U330 | PCM2902CDBR USB audio codec | |
| C1 | 10u 10V RADIO_DB_5V local bulk | |
| C2 | 1u AP2112 input local | |
| C3 | 1u AP2112 output local | |
| C4 | 10u RADIO_DB_3V3 local bulk | |
| C5 | 100n RADIO_DB_3V3 high-frequency | |
| C40 | 100n GNSS input-buffer local | |
| C41 | 10u GNSS local | |
| C42 | 100n GNSS local | |
| C220 | 10u 25V X7R radio VIN | |
| C221 | 100n BOOT | |
| C222,C225 | 22u 16V X7R radio output | |
| C223 | 100n 50V X7R radio HF | |
| C224 | 56p C0G TPS54302 feed-forward | |
| C226 | 10n VHF audio RF shunt | |
| C227 | 10n UHF audio RF shunt | |
| C240 | 100n VHF RF-select latch local | |
| C243,C253 | 10n PE42820 VDD bypass per eval board | |
| C244,C254 | 100p PE42820 V1 RF bypass per eval board | |
| C246 | 100n VHF fail-safe buffer local | |
| C247 | 100n VHF UART translator RADIO_4V0 | |
| C248 | 100n VHF UART translator 3V3 | |
| C250 | 100n UHF RF-select latch local | |
| C256 | 100n UHF fail-safe buffer local | |
| C257 | 100n UHF UART translator RADIO_4V0 | |
| C258 | 100n UHF UART translator 3V3 | |
| C260,C261 | 100n PTT interlock local | |
| C270 | 100p C0G 250V VHF PE42820 RFC DC block | |
| C271 | 100p C0G 250V VHF PE42820 RF1_EXTERNAL DC block | |
| C272 | 100p C0G 250V VHF PE42820 RF2_INTERNAL DC block | |
| C273 | 100p C0G 250V UHF PE42820 RFC DC block | |
| C274 | 100p C0G 250V UHF PE42820 RF1_EXTERNAL DC block | |
| C275 | 100p C0G 250V UHF PE42820 RF2_INTERNAL DC block | |
| C330 | 1u PCM2902C VBUS | |
| C331 | 10u VCCCI | |
| C332 | 1u VCCP1I (<2u) | |
| C333 | 1u VCCP2I (<2u) | |
| C334 | 1u VCCXI (<2u) | |
| C335 | 1u VDDI (<2u) | |
| C337 | 10u VCOM | |
| C338,C339 | 18p C0G 5% PCM2902 crystal load | |
| C340 | 1u VHF RX AC couple | |
| C341 | 1u UHF RX AC couple | |
| C342 | 1u VHF TX audio AC couple | |
| C343 | 1u UHF TX audio AC couple | |
| D390-D393 | BAT54WS PTT/suspend mute OR | |
| FL240 | Mini-Circuits LFCN-160+ 2m/VHF LPF | |
| FL250 | Mini-Circuits ULP-470+ 70cm/UHF LPF | |
| J1 | FH12-30S 30-pin radio daughterboard FFC | |
| J42 | GNSS passive antenna U.FL | |
| J70 | DRA818V 2m FM module | |
| J71 | DRA818U 70cm FM module | |
| J240 | 2m/VHF internal/PCB antenna feed U.FL | |
| J241 | 2m/VHF rear external SMA/u.FL path | |
| J250 | 70cm/UHF internal/PCB antenna feed U.FL | |
| J251 | 70cm/UHF rear external SMA/u.FL path | |
| L70 | 3.3uH 20% 6.0A Isat20 | |
| R40 | 100k GNSS local reset pull-up | |
| R41,R42 | 100R GNSS output series | |
| R220 | 100k radio rail enable | |
| R221 | 100k 1% 4.0V FB hi | |
| R222 | 17.4k 1% 4.0V FB lo | |
| R225 | 100k VHF default sleep | |
| R226 | 100k UHF default sleep | |
| R227 | 47k 1% VHF antenna select default internal; PE42820 control divider low | |
| R228 | 47k 1% UHF antenna select default internal; PE42820 control divider low | |
| R229 | 0R VHF H/L LOW POWER - FIT | |
| R230 | 100k VHF RF-select EC reset default internal | |
| R231 | 0R UHF H/L LOW POWER - FIT | |
| R232 | 100k UHF RF-select EC reset default internal | |
| R233 | 1k VHF AF out | |
| R234 | 1k UHF AF out | |
| R235 | 10k VHF local PTT inactive | |
| R236 | 10k UHF local PTT inactive | |
| R237 | 10k VHF local sleep | |
| R238 | 10k UHF local sleep | |
| R242 | 10k 1% VHF PE42820 control divider top | |
| R243 | 100R VHF translated TXD series | |
| R260 | 10k 1% UHF PE42820 control divider top | |
| R261 | 100R UHF translated TXD series | |
| R330 | 22R USB DP series | |
| R331 | 22R USB DM series | |
| R334 | 82k 1% VHF mic attenuator series | |
| R335 | 82k 1% UHF mic attenuator series | |
| R336 | 1k 1% VHF mic attenuator shunt | |
| R337 | 2.2R PCM2902C VBUS filter | |
| R338 | 1.5k USB D+ pull-up per TI Figure 39 | |
| R340 | 1M crystal feedback | |
| R341 | 1k 1% UHF mic attenuator shunt | |
| R342 | 100k SSPND fail-low pull-down | |
| R343 | 100k force-mute pull-down | |
| R344 | 100k VHF mute-gate pull-down | |
| R345 | 100k UHF mute-gate pull-down | |
| Y330 | ABM8G-106-12.000MHZ-T 12MHz 10pF CL |