AD9102 OUTPUT SWEEPING SINE WAVE

Question

hi. 
 I want to output sweeping sine frequency in TTL voltage levle using AD9102. The datasheet is so vague that i can just output constant voltage.Is there anyone who can help me fix this: 
 Output frequency range: 20kHz to 30kHz, 1kHz step; 
 Number of cycles:10 cycles/frequency point. 
 Best regards!

ADIApproved · Accepted Answer

Hi - 
 The AD9102 output is a current up to 8ma. The output compliance range is -0.5V to +1.0V. The maximum output voltage of the AD9102 is AVDD + 0.3V. To get to TTL levels you would need to follow the AD9102 with an amplifier. 
 You can use the SRAM to store a list of tuning words for the on chip DDS. The tuning resolution of the DDS is 10.8hz at 180Mhz CLKP/CLKN. 
 Thanks, 
 Larry)

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AD9102 OUTPUT SWEEPING SINE WAVE