Sun, 14 Oct 2007
Chipcon/TI CC1110 radio transceiver
In early spring 2006 Chipcon (Texas Instruments today) announced a very promising ISM radio transceiver device. Today first people are getting hold of the CC1110:
Nick Chernyy has taken a series of great shots of the CC1110. In his microblog he's doing silicon porn pics every friday (aka IC Friday).
All kudos go to Nick!
I had designed a board for the transceiver back in last spring and am still awaiting the first samples. The CC1110 main features are:
The board I designed couples the CC1110 via a FTDI to a USB host PC. For the RF part I still need to design a power amp board, as I am targetting a small frequency slot between 869.40 and 869.65 MHz, where (atleast) in germany we're allowed to operate at 500 milliwatts ERP.
- 315/433/868/915 MHz GFSK radio
- 8051 CPU @ 24 MHz (@1 instruction per cycle, not 12:)
- 128 bit AES coprocessor
- 32 kB flash
- 4 kB SRAM
- 5 channel DMA engine
A far-in-the-future target of this spare time work will be an encrypted ad-hoc radio network layer.
If I made you curious, just wait for more to come.
If you're an enthusiastic developer, contact me, I may need your help.
I often use Nordic nRF9E5 and now, i'm trying to design a power amp, but i have no RF skills.
I'm planning to use a MAX2234 PA, a MAX2643 LNA, a SAW filter and 2 NXP SA630 SPDT RF switches.
Other possibilities are: BFG540 discrete transistor for PA, a NXP BGA6289 PA, a NXP BGA2003 LNA or two BA592 pin diodes as a RF switch.
I can give you an schematic of an Cgipcon CC1000 with 25 miliwatts
Hi Nestor, thanks for your suggestions. I am not quite sure why you want an LNA? Because the PIN-switches add too much attenuation? I think with two PIN-switches you can stay around 1-2 dB, which seems fair and OK to me without LNA.
For the RF amp I had chosen a RFMD RF5110...
Hey man, I thought this was some new kind of desktop operating system screenshot...