PSOC6BLE QFN pacakage ,how the GANT pin be conneted?

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Frank_vec
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1、When designing ble antenna, how should the Gant pin be connected?

 

Frank_vec_1-1658469036194.png

 

2、 Are other BLE ()related schematic diagrams correct? Thank you.

 

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Yugandhar
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1000 replies posted 5 likes given First comment on blog

Hello,

1. The two antenna ground pins (GANT1 and GANT2) on the 68-QFN package should be connected to the epad ground on the PCB with as short a connection as possible. Please refer to page 38 in the PSoC63 BLE family datasheet for more information. Also, please refer to the PSoC 6 MCU Hardware Design Considerations and Antenna Design and RF Layout Guidelines datasheets.

2. The matching network values will need to be tuned on the target board, also, it is better to use one more component (a pi or T) to provide for better ability to tune.

3. Could you please refer to the section '8.4 Load Capacitance Value for Designs with PSoC 6 BLE Device' in the AN95089 datasheet. Please make sure of the external load capacitance values.

Thanks,
P Yugandhar.

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Yugandhar
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Moderator
Moderator
1000 replies posted 5 likes given First comment on blog

Hello,

1. The two antenna ground pins (GANT1 and GANT2) on the 68-QFN package should be connected to the epad ground on the PCB with as short a connection as possible. Please refer to page 38 in the PSoC63 BLE family datasheet for more information. Also, please refer to the PSoC 6 MCU Hardware Design Considerations and Antenna Design and RF Layout Guidelines datasheets.

2. The matching network values will need to be tuned on the target board, also, it is better to use one more component (a pi or T) to provide for better ability to tune.

3. Could you please refer to the section '8.4 Load Capacitance Value for Designs with PSoC 6 BLE Device' in the AN95089 datasheet. Please make sure of the external load capacitance values.

Thanks,
P Yugandhar.

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Frank_vec
Level 4
Level 4
Distributor - Zenitron(GC)
50 replies posted First like received First comment on blog

非常感谢您的支持,您所提供的文档我看了,最大难点还是阻抗匹配;

 

 

Thank you very much for your support. I have read the documents you provided. The biggest difficulty is network  matching;

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Yugandhar
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1000 replies posted 5 likes given First comment on blog

Hello, 

You can refer to our PSoC6BLE development boards schematic files as reference. Make sure that the values themselves will vary from board to board and antenna to antenna.  

https://www.infineon.com/cms/en/product/evaluation-boards/cy8ckit-062-ble/#!boards

 

Thanks,

P Yugandhar. 

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