sample time not compatible

Hi,

in this link http://www.mathworks.com/matlabcentral/fileexchange/722-bluetooth-modulation-and-frequency-hopping a Simulink model "Bluetooth.mdl" can be found.

The sample time on the channel (before AWGN) is 0.000625s, with 62500 values at each sample. That means, 0.000625/62500 = 1e-8s for each value. If this calculation is correct, the noise AWGN shall also have the sample time = 1e-8, but it is 1e-6. Did I make a wrong calculation?

Owen