DAC1627D1G25HN

Dual 16-bit DAC, up to 1.25 Gsps; 2x 4x and 8x interpolating


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The DAC1627D1G25 is a 16-bit dual-channel digital-to-analog converter (DAC) with selectable 2x, 4x and 8x interpolation filters optimized for multi-carrier broad band wireless transmitters at sample rates up to 1.25 Gsps. Supplied from 3.3 V and 1.8 V power sources, it integrates a differential scalable output current up to 34 mA. The mixer frequency is set by a high resolution 40-bit Numerically Controlled Oscillator (NCO). High resolution internal gain, phase and offset control provide outstanding image and LO rejection at the system analog modulator output. An inverse (sin x)/x function ensures controlled flatness at the DAC output. The LVDS DDR receiver interface allows a high data bandwidth (312.5 MS/sec) at the input.

Features and benefits

  • Dual channel 16-bit resolution
  • 1.25 Gsps maximum update rate
  • Selectable 2x, 4x and 8x interpolation filters
  • Very low noise capacitor-free integrated Phase Locked Loop (PLL)
  • Embedded Numerically Controlled Oscillator with 40-bit programmable frequency
  • Embedded complex digital modulator
  • 1.8 V and 3.3 V power supplies
  • LVDS DDR compatible input interface with on-chip 100 Ω termination
  • LVDS DDR input clock up to 312.5 MHz
  • LVDS or LVPECL compatible DAC clock
  • Interleaved or folded I and Q data input modes
  • MDS CGVxpress™ feature
  • 3 or 4 wire mode SPI interface
  • Differential scalable output current from 8.1 mA to 34 mA
  • External analog offset control (10-bit auxiliary DACs)
  • High resolution internal digital gain and offset control
  • Internal phase correction
  • Inverse (sin x) / x function
  • Power-down mode and sleep mode
  • On-chip 1.25 V reference

Applications

  • Wireless infrastructure: LTE-A, LTE, MC-GSM, W-CDMA, TD-SCDMA
  • LMDS/MMDS, Point-to-Point Microwave Backhaul
  • Direct Digital Synthesis (DDS) Instruments
  • High Definition Video Broadcast Production Equipment
  • Automated Test Equipment (ATE)
All information on this product information page is subject to the subsequent disclaimers:
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Show functional diagram

DAC1627D1G25; block diagram
DAC1627D1G25; block diagram

Demo boards

DAC1627D1G25DAC1627D1G25

DAC1627D1G25 demo board


Parametrics of this product

SymbolParameterConditionsMinTyp/NomMaxUnit
Ptottotal power dissipation4x interpolation; NCO on; no MDS; no PLL; fs = 1228.8 Msps1770mW
Tambambient temperature-4085°C
fssampling frequency1250Msps
IO(fs)full-scale output currentdefault value20mA
IO(fs)full-scale output currentcontrolled by the analog GAIN registers8.134mA
IMD3third-order intermodulation distortionfdata = 245.76 MHz; fs = 983.04 MHz; f1 = 20 MHz; f2 = 21 MHz; x4 interpolation; output level = -1 dBFS93dBc
Nchnumber of channels2
Nresnumber of resolution bits16bit
SFDRspurious-free dynamic rangefdata = 307.2 MHz; fs = 1228.8 Msps; BW = fdata / 2; fo = 20 MHz at -1 dBFS83dBc

Similar products

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
DAC1627D1G25HN/C1DAC1627D1G25HN/C1,9352 941 26518Samples availableSOT813-3
(HVQFN72) 		Reel Dry Pack, SMD, 13"Standard Marking
DAC1627D1G25HN/C1DAC1627D1G25HN/C1:9352 941 26551Samples availableSOT813-3
(HVQFN72) 		Tray Dry Pack, Bakeable, SingleStandard Marking

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
DAC1627D1G25HN/C1DAC1627D1G25HN/C1,DAC1627D1G25HN/C1Always Pb-free33
DAC1627D1G25HN/C1DAC1627D1G25HN/C1:DAC1627D1G25HN/C1Always Pb-free33
Quality and reliability disclaimer

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Documentation for this product

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
DAC1627D1G25HN/C19352 941 26518DAC1627D1G25HN/C1,      not available
DAC1627D1G25HN/C19352 941 26551DAC1627D1G25HN/C1:      not available

Sample

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Demo boards

DAC1627D1G25
DAC1627D1G25

DAC1627D1G25 demo board

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