Hello!
You should specify what kind of bitrate you are expecting.
I'm a user of BlueGige BLE112. It works fine but the bit rate is quite limited.
According to BlueGiga, it's about 3K byte / second. So basically 30 kbps if you
count start and stop bit.
In fact, it depends on whether you use indication or notification. I don't remember
which one of these 2 has a feedback, but the one without feedback is faster.
Otherwise, I have also used older devices which were not low energy, and with
faster bit rates.
By the way, I just reread your message... You're looking for a chipset or for a module?
The chipset used in the BLE112 module is a Texas Instruments of the CC2500 series.
Dora.