 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
DAC39RF10 Datasheet(PDF) 109 Page - Texas Instruments |
|
|
|||||||||||||||||||||||||||||
DAC39RF10 Datasheet(HTML) 109 Page - Texas Instruments |
|
|
109 / 232 page  Normalized Frequency (/FCLK) 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 Figure 7-40. 192x Interpolation Filter Response Normalized Frequency (/FCLK) 0 0.0004 0.0008 0.0012 0.0016 0.002 -0.001 -0.0008 -0.0006 -0.0004 -0.0002 0 0.0002 0.0004 0.0006 0.0008 0.001 Figure 7-41. 192x Interpolation Filter Passband Response Normalized Frequency (/FCLK) 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 Figure 7-42. 256x Interpolation Filter Response Normalized Frequency (/FCLK) 0 0.0004 0.0008 0.0012 0.0015625 -0.001 -0.0008 -0.0006 -0.0004 -0.0002 0 0.0002 0.0004 0.0006 0.0008 0.001 Figure 7-43. 256x Interpolation Filter Passband Response 7.3.6.1.2 Numerically Controlled Oscillator (NCO) Each DUC has an NCO block that is capable of phase continuous frequency hopping and phase coherent frequency hopping through a NCO with 64-bit frequency and 16-bit phase words. The NCO provides the complex sinusoid that is used for the complex mixing operation. The NCOs can also be used with DDS mode to generate a tone without using the DUC filter path. The NCO updates modes are either Phase-continuous (see Phase-continuous NCO Update Mode), Phase- coherent (see Phase-coherent NCO Update Mode or Phase-sync (see Phase-sync NCO Update Mode). The NCO frequency is written to the NCO frequency word register setting through either the standard SPI interface or through the Fast Reconfiguration (FR) interface, which allows for faster frequency updates. The frequency update occurs either as soon as the new frequency word is written or once triggered by the chosen trigger source. Available trigger sources are a SPI register, the SYSREF signal or by replacing the LSB of the I input signal with a sync signal (determined by the NCO_SYNC_SRC register). 7.3.6.1.2.1 Phase-Continuous NCO Update Mode In phase-continuous NCO update mode, the phase frequency is updated without reset of the phase accumulator, which maintains the current sinusoid phase when changing frequency to reduce discontinuities in the output response. Phase Continuous NCO Mode operation is demonstrated in Figure 7-44 and selected by programming NCO_CONT = 1 and NCO_AR = 0. www.ti.com DAC39RF10-SP, DAC39RF10-SEP DAC39RFS10-SP, DAC39RFS10-SEP SBAS932A – MARCH 2024 – REVISED FEBRUARY 2026 Copyright © 2026 Texas Instruments Incorporated Submit Document Feedback 109 Product Folder Links: DAC39RF10-SP DAC39RF10-SEP DAC39RFS10-SP DAC39RFS10-SEP |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
