Electronic Components Datasheet Search |
|
AD9852ASQ Datasheet(PDF) 10 Page - Analog Devices |
|
AD9852ASQ Datasheet(HTML) 10 Page - Analog Devices |
10 / 42 page AD9852 –10– REV. 0 Figures 14 and 15 show the effects of utilizing “sweet spots” in the tuning range of a DDS. Figure 14 represents a tuning word that accentuates the aberrations associated with truncation in the DDS algorithm. Figure 15 is essentially the same output frequency (a few tuning codes over), but it displays much fewer spurs on the output due to the selection of a tuning “sweet spot.” Consideration should be given to all DDS applications to exploit the benefit of sweet spot tuning. 0 CENTER 112.499MHz –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 50kHz/ SPAN 500kHz Figure 14. The Opposite of a “Sweet Spot.” 112.469 MHz with multiple high energy spurs close around the fundamental. 0 CENTER 112.469MHz –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 50kHz/ SPAN 500kHz Figure 15. A slight change in tuning word yields dramatically better results. 112.499 MHz with all spurs shifted out-of-band. Figures 16 and 17 show the narrowband performance of the AD9852 when operating with a 20 MHz reference clock and the REFCLK Multiplier enabled at 10 × vs. a 200 MHz external reference clock. 0 CENTER 39.1MHz –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 5kHz/ SPAN 50kHz Figure 16. Narrowband SFDR, 39.1 MHz, 50 kHz BW, 200 MHz EXTCLK with REFCLK Multiplier Bypassed 0 CENTER 39.1MHz –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 5kHz/ SPAN 50kHz Figure 17. Narrowband SFDR, 39.1 MHz, 50 kHz BW, 10 MHz EXTCLK with REFCLK Multiplier = 10 × |
Similar Part No. - AD9852ASQ |
|
Similar Description - AD9852ASQ |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |