ADI design for the launch of the industrys first synchronous multi-channel DDS devices

Analog Devices (Analog Devices, Inc., ADI) today announced the industrys first multi-channel direct digital synthesizer (DDS) devices. New device allows up to 4 independent output channels simultaneously within the program, which 4-channel 2-channel AD9959 and LM2662M datasheet and AD9958 multi-channel signal can provide an effective balance between the tuning control, which enables the system engineer with very little time and LM2662M price and effort to deal with this is usually part of complex system design.

AD9958 and LM2662M suppliers and the AD9959 DDS as multiple channels integrated in a chip simplifies the design process, without a few single-channel DDS chips and external circuitry to help reduce the PCB area. DDS is a fixed frequency clock source used to produce from the analog output waveform or a digital clock signal. AD9959 and the AD9958 suitable for the complex requirements of high speed of up to 200MHZ frequency synthesizer applications, which include phased-array radar and sonar systems, automatic test equipment, medical imaging and optical communication systems. DDS

ADIs complete solution for high-performance digital to analog converter with a built-in (DAC) to convert a reference frequency of sampling by the fine frequency control sine wave. DDS Qi Jian is gradually replacing the traditional jump into a analog synthesizer solutions, because they can provide significant performance advantages, for example, the output has a very good match, easy synthesis and the phase quadrature relationship between the input signal, and very fast frequency changes.

AD9959 and the AD9958 via a common reference clock to synchronize its internal independent channels, to reduce design complexity, often involving the synchronization of multiple DDS devices. Programmable channel control can be due to analog processing (such as filtering, amplification), or PCB layout mismatches generated outside the signal path to correct the imbalance. If you need to increase the channel, AD9959 and AD9958 allow daisy-chaining additional DDS chips. These devices also offer extremely low power consumption, power consumption per channel is less than 165mW.

4-channel 2-channel AD9959 and AD9958 in each channel contains a high-speed 10-bit DAC, the DAC with excellent wideband and narrowband SFDR SFDR. Each of which fully independent programmable channel provides 14-bit phase shift control, 32-bit frequency resolution control and 10-bit amplitude control. These devices also support a direct and linear sweep modulation, while the channel can reach more than 60DB isolation. Integrated 32-bit control word in the sampling clock frequency of up to 500MSPS, can make the resolution of each channel is set to 116MHZ or less than the 116MHZ.

AD9959 can now be mass-produced; AD9958 are sampling now and will be in the September 2005 high-volume production. Both products can be in the -40 ℃ ~ +85 ℃ extended industrial temperature range up to the required specifications. One 4-channel 2-channel AD9959 and AD9958 one thousand unit pricing were $ 37.14 / piece and $ 20.24 / piece (for reference) and have used 8 × 8mm of the LFCSP package.