DAC39RF10 datasheet(93/232 Pages) TI2

93 / 232 page

7.3 Feature Description

This section describes the analog and digital features of the device.

7.3.1 DAC Output Modes

The DAC39RF10-Sx and 'RFS10-Sx consists of a multi-Nyquist DAC core capable of direct transmission

through the third Nyquist zone. The high output frequency capabilities are enabled by specific output switching

waveforms that alter the output waveform, changing the frequency response of the DAC to enhance the

DAC images in alternate Nyquist zones. The desired switching waveforms can be selected through the serial

interface. A list of modes along with their properties and uses are provided in Table 7-1. The responses shown

in this section do not consider the effect of the DAC analog bandwidth or external passive or active signal chain

components.

Table 7-1. Summary of Multi-Nyquist Output Modes and Uses

DAC OUTPUT MODE

PASSES DC

Optimal Frequency Range

PEAK OUTPUT POWER(1)

Other

Non-return-to-zero (NRZ)

Yes

0 - FCLK/2

0 dBFS

Return-to-zero (RTZ)

Yes

0 - FCLK

–6 dBFS

Radio Frequency (RF)

FCLK/2 - FCLK

–2.8 dBFS

Dual Edge Sampling (DES)

Yes

0 - FCLK

0 dBFS

Duty cycle image at FCLK -

FOUT

(1)

Peak power here does not include the effect of analog output bandwidth due to parasitic passive components or external components

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DAC39RF10-SP, DAC39RF10-SEP

DAC39RFS10-SP, DAC39RFS10-SEP

SBAS932A – MARCH 2024 – REVISED FEBRUARY 2026

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Product Folder Links: DAC39RF10-SP DAC39RF10-SEP DAC39RFS10-SP DAC39RFS10-SEP

DAC39RF10 Datasheet(PDF) 93 Page - Texas Instruments