AD9912:  1 GSPS Direct Digital Synthesizer with 14-Bit DAC

The AD9912 is a direct digital synthesizer (DDS) featuring an integrated 14-bit DAC. The AD9912 features a 48-bit frequency tuning word (FTW), which can synthesize frequencies in step sizes no larger ...More

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AD9912:  1 GSPS Direct Digital Synthesizer with 14-Bit DAC

Product Description

The AD9912 is a direct digital synthesizer (DDS) featuring an integrated 14-bit DAC. The AD9912 features a 48-bit frequency tuning word (FTW), which can synthesize frequencies in step sizes no larger than 4 μHz. Absolute frequency accuracy can be achieved by adjusting the DAC system clock.

The AD9912 also features an integrated system clock PLL, which allows for system clock inputs as low as 25 MHz.

The AD9912 operates over an industrial temperature range, spanning −40°C to +85°C.

Applications

  • Agile LO frequency synthesis
  • Low jitter, fine tune clock generation
  • Test and measurement equipment
  • Wireless base stations, controllers
  • Secure communications
  • Fast frequency hopping

Data Sheet, Rev. A, 1/08

Features

  • 1 GSPS internal clock speed (up to 400 MHz output directly)
  • Integrated 1 GSPS 14-bit DAC
  • 48-bit frequency tuning word with 4 μHz resolution
  • Differential HSTL comparator
  • Flexible system clock input accepts either crystal or external reference clock
  • On-chip low noise PLL REFCLK multiplier
  • Software controlled power-down
  • See Data Sheet for Additional Information

Diagrams

AD9912 Diagram
Functional Block Diagram for AD9912

Specifications

Compliance Range (V) 0.5V
I Supply total (max) 394mA
I/O Interface Serial
Master fclk 1000MHz
Nominal Supply (V) Multi(+1.8, +3.3)
On-Board Comparator Yes
REFCLK Multiplier Yes
Resolution (Bits) 14bit

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AD9913 - Low Power 250 MSPS 10-Bit DAC 1.8 V CMOS Direct Digital Synthesizer

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Part# Master fclk Resolution (Bits) Tuning Word Width (bits) Nominal Supply (V) I Supply total (max) FS Iout (mA nom) Compliance Range (V) REFCLK Multiplier On-Board Comparator I/O Interface Price* (1000-4999) Product Description
AD9913 250MHz 10 32 Single(+1.8) 63.5mA 4.6 0.8 Yes No Parallel, Serial $9.77 Low power 250 MSPS DDS with 10 bit DAC output
AD9833 25MHz 10 28 Single(+2.3 to +5.5), Single(+2.5), Single(+2.7), Single(+3), Single(+3.3), Single(+3.6), Single(+5) 5.5mA 3 0.65 No No Serial $4.00 25 MHz, Serial Input, Programmable DDS Waveform Generator
AD9831 25MHz 10 32 Single(+3.3), Single(+3.6), Single(+5) 15mA 4 1.5 No No Parallel $6.33 CMOS, 25 MHz Parallel Input DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD9832 25MHz 10 32 Single(+3.3), Single(+3.6), Single(+5) 15mA 4 1.35 No No Serial $5.06 CMOS, 25 MHz Serial Input DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD5930 50MHz 10 24 Single(+2.3 to +5.5) 8mA 3.1 0.8 No No Serial $6.38 Programmable Frequency Sweep and Output Burst Waveform Generator
AD5932 50MHz 10 24 Single(+2.3 to +5.5) 8mA n/a n/a Yes No Serial $4.15 Programmable Single-Scan Waveform Generator
AD9830 50MHz 10 32 Single(+5) 60mA 20 1 No No Parallel $11.08 CMOS, 50 MHz Parallel Load DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD9835 50MHz 10 32 Single(+5) 40mA 4 1.35 No No Serial $5.82 CMOS, Serial Input, 50 MHz DDS with On-Chip 10-Bit DAC
AD9834 75MHz 10 28 Single(+2.3 to +5.5), Single(+2.5), Single(+2.7), Single(+3), Single(+3.3), Single(+3.6), Single(+5) 8.7mA 3 0.8 No Yes Serial $5.01 Low Power, 50 MHz Serial Input DDS With On-Board Comparator
AD9850 125MHz 10 32 Single(+3.3), Single(+5) 96mA 20 1.5 No Yes Parallel, Serial $12.14 CMOS, 125 MHz Serial/Byte-Parallel Input, Complete DDS
AD9851 180MHz 10 32 Single(+3), Single(+3.3), Single(+3.6), Single(+5) 130mA 20 1.5 Yes Yes Parallel, Serial $13.56 180 MHz Complete DDS
AD9852 300MHz 12 48 Single(+3.3) 922mA 20