Why does it say that the nRF51822 has 1Mb/s and 2Mb/s data rates if it doesn't?

[westhouse]

Why does it say that the nRF51822 has 1Mb/s and 2Mb/s data rates if it doesn't?

Quote from devzone: "6 * 20 B* 1/0.0075 s = 16 kB/s = 128 kbps". And its only for S110, cause for S120 this is even less as I read.

[Eirik Aa]

The data payload thougput is not the same as the RF data rate. When using a proritary protocole the chip supports data rates over the air of 2MBit. But this is the spees each bit is transferred, not the thourgput.

In BLE applications the protocole enforces 1MBit data rates. Still this is the data rate over the air. This is usefull in reguards to how long time the chip needs to be in RX/TX mode to recieve one bit. Less time means less power used.