content here.
content here.

AD9958:  2-Channel 500 MSPS DDS with 10-Bit DACs

The AD9958 consists of two DDS cores that provide indepen- dent frequency, phase, and amplitude control on each channel. This flexibility can be used to correct imbalances between signals due to analog processing, such as filtering, amplification, or PCB layout related mismatches. Because both channels share a common system clock, they are inherently synchronized. Synchronization of multiple ...More

AD9958:  2-Channel 500 MSPS DDS with 10-Bit DACs

Product Description

The AD9958 consists of two DDS cores that provide indepen- dent frequency, phase, and amplitude control on each channel. This flexibility can be used to correct imbalances between signals due to analog processing, such as filtering, amplification, or PCB layout related mismatches. Because both channels share a common system clock, they are inherently synchronized. Synchronization of multiple devices is supported.

The AD9958 can perform up to a 16-level modulation of frequency, phase, or amplitude (FSK, PSK, ASK). Modulation is performed by applying data to the profile pins. In addition, the AD9958 also supports linear sweep of frequency, phase, or amplitude for applications such as radar and instrumentation.

The AD9958 serial I/O port offers multiple configurations to provide significant flexibility. The serial I/O port offers an SPI- compatible mode of operation that is virtually identical to the SPI operation found in earlier Analog Devices, Inc., DDS products. Flexibility is provided by four data pins (SDIO_0/ SDIO_1/SDIO_2/SDIO_3) that allow four programmable modes of serial I/O operation.

The AD9958 uses advanced DDS technology that provides low power dissipation with high performance. The device incorporates two integrated, high speed 10-bit DACs with excellent wideband and narrow-band SFDR. Each channel has a dedicated 32-bit frequency tuning word, 14 bits of phase offset, and a 10-bit output scale multiplier.

The DAC outputs are supply referenced and must be termin- ated into AVDD by a resistor or an AVDD center-tapped transformer. Each DAC has its own programmable reference to enable different full-scale currents for each channel.

The DDS acts as a high resolution frequency divider with the REFCLK as the input and the DAC providing the output. The REFCLK input source is common to both channels and can be driven directly or used in combination with an integrated REFCLK multiplier (PLL) up to a maximum of 500 MSPS. The PLL multiplication factor is programmable from 4 to 20, in integer steps. The REFCLK input also features an oscillator circuit to support an external crystal as the REFCLK source. The crystal must be between 20 MHz and 30 MHz. The crystal can be used in combination with the REFCLK multiplier.

The AD9958 comes in a space-saving 56-lead LFCSP package. The DDS core (AVDD and DVDD pins) is powered by a 1.8 V supply. The digital I/O interface (SPI) operates at 3.3 V and requires the pin labeled DVDD_I/O (Pin 49) be connected to 3.3 V.

The AD9958 operates over the industrial temperature range of −40°C to +85°C.

Applications

  • Agile L.O. frequency synthesis
  • Phased array radar / sonar
  • Instrumentation
  • Synchronized clocking
  • RF source for AOTF
  • Single-side band suppressed carriers
  • Quadrature communications

Data Sheet, Rev. A, 07/08

RESOURCES & TOOLS

What is your task? Try Lead the Way AdvisorTM BETA
Eb

EVALUATION BOARDS & DEVELOPMENT KITS

Ts

TOOLS, SOFTWARE & SIMULATION MODELS

  • Two synchronized DDS channels @500 MSPS
  • Independent frequency / phase / amplitude control between all channels
  • Matched latencies for Freq, Phase, and Amplitude changes
  • Excellent channel to channel isolation
  • Linear frequency/phase/amplitude sweeping capability
  • Up to 16 levels of frequency/phase/amplitude modulation (pin-selectable)
  • 2 integrated 10-bit digital-to-analog converters (DACs)
  • See Data Sheet for Additional Information
  • Compliance Range (V): 2.3V
  • FS Iout (mA nom): 10mA
  • I Supply total (max): 105mA
  • I/O Interface: Serial
  • Master fclk : 500MHz
  • Nominal Supply (V): Multi(+1.8, +3.3)
  • REFCLK Multiplier: Yes
  • Resolution (Bits): 10bit

Functional Block Diagram for AD9958

Circuits from the Lab

Find more at our Circuits Library.

Similar Products

arrow View Full Interactive Product Selection Table
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 1 Yes Yes Parallel, Serial $15.58 CMOS, 300 MSPS Complete DDS w/ Clock Multiplier
AD9854 300MHz 12 48 Single(+3.3) 1210mA 10 1 Yes Yes Parallel, Serial $17.10 CMOS 300 MHz, Quadrature, Complete-DDS
AD9859 400MHz 10 32 Multi(+1.8, +3.3) n/a 20 2.05 Yes No Serial $9.87 400 MSPS, 10-Bit, 1.8 V CMOS DDS
AD9951 400MHz 14 32 Multi(+1.8, +3.3), Single(+1.8) n/a 10 2.05 Yes No Serial $13.90 400 MSPS 14-Bit, 1.8 V CMOS DDS
AD9952 400MHz 14 32 Multi(+1.8, +3.3), Single(+1.8) n/a 10 2.05 Yes Yes Serial $15.68 400 MSPS, 14-Bit, 1.8 V, CMOS Direct Digital Synthesizer w/High Speed Comparator
AD9953 400MHz 14 32 Multi(+1.8, +3.3), Single(+1.8) n/a 10 2.05 Yes No Serial $14.92 400 MSPS, 14-Bit DAC, 1.8 V CMOS Direct Digital Synthesizer w/ 1024x32 RAM
AD9954 400MHz 14 32 Multi(+1.8, +3.3), Single(+1.8) n/a 10 2.05 Yes Yes Serial $17.45 400 MSPS, 14-Bit, 1.8V CMOS DDS w/ 1024x32 RAM, Linear Sweep Block, & Hi Speed Comparator
AD9956 400MHz 14 48 Multi(+1.8, +3.3) n/a 10 2.3 No No Serial $17.45 400 MSPS, 14-Bit DAC, 48-Bit Freq Tuning Word, 1.8 V CMOS DDS Based AgileRF™ Synthesizer
AD9958 500MHz 10 32 Multi(+1.8, +3.3) 105mA 10 2.3 Yes - Serial $20.48 2-Channel 500 MSPS DDS with 10-Bit DACs
AD9911 500MHz 10 32 Single(+1.8) 73mA 10 1.8 Yes - Serial $15.69 500 MSPS Direct Digital Synthesizer w/10-Bit DAC
AD9959 500MHz 10 32 Multi(+1.8, +3.3) 180mA 10 2.3 Yes - Serial $37.59 -
AD9858 1000MHz 10 32 Multi(+3.3, +5) n/a 40 3.8 No No Parallel, Serial $45.66 1 GSPS Direct Digital Synthesizer
AD9910 1000MHz 14 32 Single(+1.8), Single(+3.3) n/a 20 0.5 Yes No Parallel, Serial $35.33 1 GSPS, 14-Bit, 3.3 V CMOS Direct Digital Synthesizer
AD9912 1000MHz 14 48 Multi(+1.8, +3.3) 394mA - 0.5 Yes Yes Serial $37.70 1 GSPS 14-Bit, DDS with Spur Reduction Channels
back to top

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

Pricing, Packaging & Availability

Print Table
back to top

Help

Model
The model number is a specific version of a generic that can be purchased or sampled.

Status
Status indicates the current lifecycle of the product. This can be one of 4 stages:
  • Pre-Release: The model has not been released to general production, but samples may be available.
  • Production: The model is currently being produced, and generally available for purchase and sampling.
  • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
  • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
Package Description
The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

Production Availability
This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

RoHS Compliant
Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

View PCN
This is the list of Product Change Notifications (PCN) published on the web for this model. Click on the link to access PCN Information.Only select pre-2009 PCN�s are available on-line. To obtain a pre-2009 PCN, contact your ADI Sales Rep. For more information on ADI's PCN process, please visit our PCN Policy Statement page

*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.