how to operate nrf8002 smd chip as standalone?

Question

I ordered nrf8002 IC. I am using following breakout board PCB & not using Nordic development kit.
 www.proto-advantage.com/.../product_info.php 
I gave 3.3V to both VDD & shorted all VSS to ground. I connect a 16MHz crystal to xc1,xc2 pins. I made a RF circuit as per development hardware document.
BLE is communicating well with laptop. I am able upload configuration & Direct Test Mode from nrfgostudio. But, I am not able to detect BLE while scanning from any Bluetooth device. I tried searching from mobile & laptop bluetooth settings. Also tried from Nordic master control android application, BLE is still undiscoverable. So, I can not check output of configuration.
Is there any possibility of impudence mismatch with RF circuit as I used 1mH inductors instead of 1nH inductors in datasheets schematics beacause of unavailability of nH range inductors.
Does nordic individual ordered BLE ICs comes with inbuilt bootloader/firmware or we are suppose to flash it manually.

FormerMember · Accepted Answer

Could you upload your layout and schematic? 
 Update 31.03.16: 
 The reason that you don't get any range is because of the "layout". 
 
 The inductors that you use, how is their specification at 2.4 GHz? Are they made to operate at that frequency? 
 The antenna: In RF, things work differently than in "regular" electronics, due to high frequencies (and short wavelengths). One of the resulting effects is that the phase of a signal will vary along the transmissions lines, as opposed to low frequencies where the wavelengths >> transmission lines, and this effect can be disregarded. When the antenna is connected to the chip via a wire, this will result in a lot of loss and no range. If you need to connect the antenna through a longer wire, it should be done using a 50 Ohm transmission line. 
 
 Instead of using the nRF8002, you can consider to use the nRF51822 or the nRF52832 , and do development with the respective development kits, nRF51-DK or nRF52-DK . nRF51822 and nRF52832 are much more flexible than the nRF8002.

FormerMember · Answer

Yes, long wires result in too much loss. 
 Yes, you will have to use a PCB to make it work properly. For the components in the matching network for matching the chip to 50 Ohm, the components on ANT1/ANT2 in the reference layout, not only the component value matter, but also the distance between the components and the relative geometry between the components. The purpose of the matching network is to damp harmonics and RX LO and match the chip to 50 Ohm, while keeping the output power as good as possible. 
 In general in RF, a transmission line of 1 mm is equivalent to a 1 nH inductor.

FormerMember · Answer

Okay, I see. How is the antenna connected? Could you upload a picture showing the nRF8002 connected on the breakout board?

awneil · Answer

You really need to get a dev kit, or use a module which will have all this stuff done properly for you. 
 RF design & layout is a specialist subject!

how to operate nrf8002 smd chip as standalone?

Top Replies