CAN Transceiver Connections Explained

ok and can the antenna be sticking off the pcb? like pads on pcb and antenna no?
31 days

1:23

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Interpreting antenna placement.

Gathering design guidelines.

Querying for antenna guidelines.

Using Knowledge Base Tool.

Looking for "antenna keepout area no copper traces components recommendation" in esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf

Looking for "placement recommendations module antenna near board edge overhang allowed" in esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf

Looking for "minimum clearance distance around antenna mm" in esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf

Looking for "mechanical drawing antenna area outline land pattern notes" in esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf

Looking for "hardware design guidelines antenna PCB cutout under antenna" in esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf

Searching web for: "ESP32-S3-WROOM-1 antenna keepout board edge placement overhang hardware design guidelines"

Found 1 results.

Setting formatting guidelines.

Yes—this is actually the preferred placement. For the ESP32-S3 module U4, Espressif recommends putting the antenna portion outside the main PCB outline (overhanging the board edge). That minimizes detuning from the baseboard.
Key rules to follow
  • Overhang OK (recommended): Keep the castellated pads fully on the PCB, and let only the antenna end project past the edge.
  • All-layer keepout: No copper, traces, vias, or components under the antenna area on any layer. If the antenna cannot overhang, maintain at least 15 mm clearance around the antenna region on all layers.
  • Enclosure clearance: Keep metal (shields, screws, battery cans, cables) out of that antenna zone. Test range in the final enclosure.
  • Assembly/mechanical: Ensure the module is well supported during reflow (panel rails or nearby board material) so the overhanging antenna isn’t stressed. Do not route board-edge fiducials or breakaways through the antenna keepout.
If you want, I can mark the antenna keepout in your layout around U4 and flag any traces/vias that cross it so you can reroute.
Confirm overhang distance
Ask about board cutout
Enclosure constraint
Keepout setup
Check current placement
31 days

Plan completed.

Show Plan


LED1
GND
C9 P1 - R14 P2
JTAG1 Pin_9 - GND GND
C12
Capacitance
Capacitance
JTAG1 Pin_9 - GND GND
U2 CANH - R14 P1
5V
JTAG1 Pin_9 - GND GND
3V3
JTAG1 Pin_9 - GND GND
C10
Capacitance
Capacitance
5V
C11
Capacitance
Capacitance
3V3
3V3
C9
Capacitance
Capacitance
U2 CANL - R15 P2
JTAG1 Pin_9 - GND GND
5V
C9 P1 - R14 P2
C5
Capacitance
22u F
LED1
R14
Resistance
500 Ω
R15
Resistance
500 Ω
U1
C4
Capacitance
22u F


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    A common return path for electric current. Commonly known as ground.
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    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
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    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
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    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
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theRevLinkBVR00009

theRevLinkBVR00009
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Last updated by iblamematthew
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iblamematthew

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