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The DAC38RF86IAAVR is a dual-channel 14-bit 9GSPS 6x-24x interpolated 9GHz GSM PLL digital-to-analog converter (DAC).

Applications

• Wireless communication

• Communication test equipment

• Arbitrary waveform generator

• Military software-defined radios

• Radar and Satellite Communications (SATCOM)

Overview:

The DAC38RF86 is a high-performance, dual-channel, 14-bit, 9GSPS, RF sampled digital-to-analog converter (DAC) capable of synthesizing wideband signals in the 0GHz to 4.5GHz range. The high dynamic range allows the DAC38RFxx family to generate signals for a variety of applications, including 3G/4G signals for wireless base stations and radar.

The device features a low-power JESD204B interface with up to eight channels with a maximum bit rate of 12.5Gbps/ channel and a composite input data rate of 1.25GSPS/ channel. The DAC38RFxx provides two digital upconverters per channel with multiple interpolation rate options. Digital quadrature modulators with frequency-flexible independent NCO can be used to support multi-band operation. The integration of GSM-compatible low phase noise PLL/VCO simplifies the generation of DAC sampling clocks by allowing the use of lower frequency reference clocks.

Features

• 14-bit resolution

• Maximum DAC sampling rate:

- 9.0GSPS (DAC38RF86, DAC38RF96)

- 6.2GSPS (DAC38RF87, DAC38RF97)

• Main specifications:

- RF full scale output power at 2.1GHz: 0dBm

- Spectrum performance, DAC38RF87/97

- fDAC = 5898.24MSPS, fOUT = 2.14GHz

- WCDMA ACLR: 73dBc

- WCDMA alternative ACLR: 77dBc

- Spectrum performance, DAC38RF86/96

- fDAC = 8847.36MSPS, fOUT = 3.7GHz

- 20MHz LTE ACLR: 66dBc

- fDAC = 9GSPS, fOUT = 1.8GHz, and - 6dBFS

- IMD3 = 70dBc (10MHz pitch interval)

• Each DAC is equipped with a dual-band digital upconverter

- 6, 8, 10, 12, 16, 18, 20 or 24-fold interpolation operations

- Four independent Ncos with a resolution of 48 bits

• JESD204B interface, subclass 1

- Supports multi-chip synchronization

- Maximum channel rate: 12.5Gbps

• Single-ended output with integrated Barron covering 700MHz to 3800MHz

• Internal PLL and VCO

- DAC38RF86/96: fC(VCO) = 8.85GHz

- DAC38RF87/97: fC(VCO) = 5.90GHz

• Power consumption: 1.4W to 2.2W per channel

• Power supply: -1.8V, 1V, 1.8V

Package: 10mm x 10mm BGA, 0.8mm pitch, with 144 balls