QCC5171 分线板

O11111

我为此类开发板设计了 QCC5171 (BTM571) 分线板。 它的制作方式是，前 2 个引脚是麦克风 3 和 4，因此在此类板上它们没有连接，因此仅使用引脚 3,4,...,27,28。 在下一个开发板上，可以使用麦克风。

有人可以看看这个板并说它是否有任何好处？ BTM525/BTM551 的类似板工作正常，所以我想知道是否有人可以测试这个。

mupro

I think you can describe your question by english, it will be better

O11111

mupro 发表于 2022-6-22 21:08
I think you can describe your question by english, it will be better

The development board is shown on the first picture. KiCad project for QCC5171 module is attached, as well as QCC5151/25 one. Upper row of pins (pins 1 and 2 on J1 and J3 in KiCad) should be left unconnected if such development board is used.
I'm wondering if anyone can verify that such QCC5171 module will be working fine.
Main concern is BTM571 footprint, it is not available here
I tried creating one based on BTM5xx, which is fine for BTM525 and BTM551 at least.
Another concern is the antenna. I used one from here (PDF to SVG and then import SVG into KiCad). QCC5151/25 breakout board's antenna has different size compared to original module, but it still works.
Maybe there's better antenna which I could use (i.e. SWRA117D)?

mupro

these antenna can also work，but performance needs tuning

onewl

感谢分享

O11111

mupro 发表于 2022-6-22 22:50
these antenna can also work，but performance needs tuning

Do I need some kind of special hardware or it may be done in software?

How much more performance is it possible to achieve?

yc_ki

这个就看你核心板的线路是否与开发板的对不对了。对应该不会有问题啊。反正只是测试开发就板载天线可以了


其实最简单你就在买开发板那买核心板就行了

ningfengshen

好资料

bluetooth_ble

大写的：

mupro

I think this pcb is for test, your antenna can work, it is ok