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DAC39RF10 Datasheet(PDF) 196 Page - Texas Instruments

Part # DAC39RF10
Description  DAC39RFx10-SP DAC39RFx10-SEP 10.4 or 20.8GSPS, 16-bit, Dual and Single Channel, Multi-Nyquist Digital-to-Analog Converter (DAC) with JESD204C Interface
PDF  232 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

DAC39RF10 Datasheet(HTML) 196 Page - Texas Instruments

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Frequency (GHz)
0
1
2
3
4
5
6
7
8
9
10
-120
-100
-80
-60
-40
-20
0
NRZ
DES2XL
Figure 9-3. Output Spectra Comparing DES2XL and NRZ Modes
RF and DES2XH mode behave similarly. Figure 9-4 shows a tone at 7997MHz with 10GHz clock in RF and
DES2XH modes. HD2 and HD3 have folded frequencies around 6GHz in NRZ mode, these are suppressed >
10dB in DES2XH mode.
Figure 9-4. Output Spectra Comparing DES2XH and RF Modes
One additional benefit of DES2XL compared to NRZ mode is an improvement in additive phase noise of
approximately 6dB in the 1/f region of the offset frequency (see Figure 9-5). This is due to DES2XL using both
the rising and falling edges of the clock, which cancels some common mode noise in the clock path. Since RF
mode also uses the falling edge to generate the inverse sample, there is no significant difference between RF
mode and DES2XH mode.
DAC39RF10-SP, DAC39RF10-SEP
DAC39RFS10-SP, DAC39RFS10-SEP
SBAS932A – MARCH 2024 – REVISED FEBRUARY 2026
www.ti.com
196
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Copyright © 2026 Texas Instruments Incorporated
Product Folder Links: DAC39RF10-SP DAC39RF10-SEP DAC39RFS10-SP DAC39RFS10-SEP



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