Frequency scaling down of the signal

Dear all,

i am trying to send out the generated sine wave with freq 1kHz @ fs 3MHz by using AO 0 channel of the NI5781 FPGA interface module and observing signal on CRO, the signal freq is showing 33KHz.

it is always coming output signal frequency  33 times of the input signal frequency.

i was trying so much, still i could not able to fix it.

i am attaching the vi below for your reference.

so im eagerly waiting for your valuable response.

Regards

Navin