Antenna pinout on BCM2042KFBG P13?

[Shimo]

Soooooo.... I'm attempting to find the pinout spot for the antenna on the BCM2042KFBG P13 bluetooth/flash chip. For the life of me I can't spot it, link below is of the part.
http://cfic4443895.b2b.hc360.com/supply/98147575.html" onclick="window.open(this.href);return false;

I recently purchased a mini bluetooth keyboard for use with my phone and computer. However I've been very disappointed in the range of the device. It get 3 feet at best. At worst 1. I popped it open exspecting to see one of those tiny short wire antennas but to my dismay I noticed it didn't even have that. So now I plan on soldering in a new antenna. Also heres a pdf pinout guide. http://pdf1.alldatasheet.com/datasheet- ... M2042.html" onclick="window.open(this.href);return false; Normally this would be a simple task for me, but for some reason this is just melting my brain. I mean I opened up my xperia x10 and added a bluetooth and wifi antenna to that, this should be easy.... I'm just so embarrassed having to ask this......

[DNR]

http://www.alldatasheet.com/datasheet-p ... M2042.html" onclick="window.open(this.href);return false;

visit various sites here
http://bcm2042kfbg.chinaicmart.com/" onclick="window.open(this.href);return false;

DNR

[Shimo]

Thats actually the same scematic I found. I still can't spot the bloody pin spot.

[floodhound2]

Good luck! The IC in question has no public data sheet, so finding the pin out will be difficult.

Code: Select all

• Transmitter provides +4 dBm output power and satisfies Class
2 operation

Also note that an antenna is not going to make the device transmit / receive better i.e. longer communications. The chip you are talking about more than likely has an integrated antenna.

Now I was able to dig this up for you. Perhaps it can help. http://www.keyglove.net/2011/03/15/inte ... id-module/

[Shimo]

Thanks flood hound. It looks like I could just wire off of pins 1 and 3 on the isp port... http://www.keyglove.net/wp-content/uplo ... ematic.png" onclick="window.open(this.href);return false; Sound right.

[floodhound2]

No pins 1 and 3 are ground pins. Like I mentioned I don't think there is an external antenna for this device because It has an internal antenna. Now I could be entirely wrong but that would be my best guess since this IC has no public data sheet.