One of the first decisions you’ll have to make when you start designing a Bluetooth product is whether you’ll use a module or a discrete Bluetooth chip. We won’t get into the details of which chip to choose since we have a great guide for selecting a Bluetooth chipset. So, we’ll assume that you’ve already chosen your device, and that you also chose to do a discrete design. If your product will be sold in volume, then a discrete design can save on cost.
One of the next decisions is whether to use a QFN or a WLCSP package. Sounds silly right? After all, does it matter which package you use? Yes, it does, and we’ll show you why. We’ll go over some of the key factors in deciding