company blog about TI DDS39RF10ACK 16-Bit 2-Channel 12GHz RF Direct Digital Synthesizer

TI DDS39RF10ACK 16-Bit 2-Channel 12GHz RF Direct Digital Synthesizer

DDS39RF10ACK is dual channel direct digital synthesizers with 16-bit resolution digital-to-analog converters (DAC). The high sampling rate, output frequency range, 64-bit NCO frequency resolution and any frequency hopping with phase coherence makes the device capable of arbitrary waveform generation (AWG) and direct digital synthesis (DDS).

The devices can also be used as interpolating DACs for narrowband direct RF sampling or complex baseband signal generation. The maximum input data rate is 775MSPS for a single channel or 388MSPS for two channels. The devices can generate signals of up to 620MHz signal bandwidth (16-bit input resolution) at carrier frequencies exceeding 10GHz enabling direct sampling through C-band and into X-band.

Feature of DDS39RF10ACK
16-bit, 10.24 to 20.48GSPS, multi-Nyquist DAC Cores
Maximum input data rate:
16-bit, single channel complex I/Q: 775MSPS
16-bit, dual channel complex I/Q: 388MSPS
Output bandwidth (-3dB): 12GHz
Performance at fOUT = 2.997GHz, DES2XL mode, DEM/Dither off
Noise floor (small signal): -153dBFS/Hz
SFDR (-0.1dBFS) : 76dBc
IMD3 (-7dBFS each tone) : -71dBc
Additive phase noise, 10kHz offset: -138dBc/Hz
Four Integrated digital up-converters (DUC)
Interpolation: 4x, 6x, 8x, 12x ... 256x
Complex baseband DUC for I/Q output
Complex to real up conversion for dual channel direct RF sampling
64-bit frequency resolution NCOs
Fast reconfiguration interface for fast frequency hopping
4-bit data with 200MHz clock
60ns reconfiguration (32-bit frequency)
Any frequency hopping with phase coherence
JESD204C Interface
Up to 2 Lanes at up to 12.8Gbps
Class C-S, subclass-1 Compatible
Internal AC coupling capacitors
SYSREF Windowing for automatic SYSREF timing calibration

Applications of DDS39RF10ACK
Satellite communications (SATCOM)
Phased array antenna systems
Synthetic aperture radar (SAR) exciter
Wireless communications testers
Arbitrary waveform generator (AWG)
Agile, low phase noise LO generation

Block Diagra of DDS39RF10ACK