AD9956: 400 MSPS 14-Bit DAC 48-Bit FTW 1.8 V CMOS DDS Based AgileRFTM Synthesizer <meta name="description" content="WOSENDONGLI 代理Analog Devices 模拟器件公司 AD9956-VCO/PCB, AD9956-VCO/PCBZ, AD9956/PCB, AD9956YCPZ

AD9956: 400 MSPS 14-Bit DAC 48-Bit FTW 1.8 V CMOS DDS Based AgileRFTM Synthesizer

The AD9956 is Analog Devices’s first AgileRF synthesizer. The device is comprised of a DDS and PLL circuitry. The DDS features a 14-bit DAC operating up to 400 MSPS and a 48-bit frequency tuning word. The PLL Circuitry includes a phase detector with scaleable 200 MHz inputs (pre-scalar inputs operate up to 650 MHz) and digital control over the charge pump current. The device also includes a 650 MHz PECL driver with programmable slew rates.The AD9956 uses advanced DDS technology, an internal high-speed, high performance D/A converter and an advance phase-detector/charge pump combination to enable the synthesis of digitally-programmable, frequency-agile analog output sinusoidal waveforms up to 2.7 GHz. The AD9956 is designed to provide fast frequency hopping and fine tuning resolution (48-bit frequency tuning word). Information is loaded into the AD9956 via a serial I/O port which has a device write speed of 25 MBit/sec. The AD9956 DDS block also supports a user defined linear sweep mode of operation.

The AD9956 is specified to operate over the extended automotive range of -40°C to +125°C.

产品应用领域 Applications

Agile L.O. frequency synthesis
FM chirp source for radar and scanning systems
Automotive radars
Test and measurement equipment
Acousto-optic device drivers

AD9956 特点

400 MSPS Internal DDS Clock Speed
48-bit tuning word
14-bit Programmable Phase Offset
Integrated 14-bit DAC Excellent Dynamic Performance - 80 dB SFDR @ 160 MHz (±100 kHz Offset IOUT) 25 MBit/sec-write Speed Serial I/O Control
200 MHz Phase Detector Inputs
Programmable (1-16) phase detector 650 MHz pre-scalars (÷M, ÷N)
Programmable RF Prescaler (÷R) {R = 2, 4, 8}
8 Phase/frequency Profiles
1.8 V Supply for Device Operation
3.3 V Supply for I/O and Charge Pump Output
Software Controlled Power-down
48-lead LFCSP

AD9956 功能框图

AD9956 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
AD9956-VCO/PCB	量产	评估板	48	工业
AD9956-VCO/PCBZ	量产	评估板	48	工业
AD9956/PCB	量产	评估板	48	工业
AD9956YCPZ	量产	48 ld LFCSP 7x7mm (5.25EP)	48	工业