供应 全新 原装 现货 热卖 AD9957BSVZ

FEATURES1GSPS internal clock speed (up to 400MHz analog out)Integrated 1GSPS 14-bit DAC250 MHz I/Q data throughput ratePhase noise ≤ –123 dBc/Hz (400 MHz carrier)Excellent dynamic performance >80 dB narrowband SFDR8 Programmable Profiles for shift keyingSIN(X)/(X) Correction (Inverse SINC filter)Reference Clock MultiplierInternal oscillator for a single crystal operationSoftware and hardware controlled power-downIntegrated RAMPhase modulation capabilityMultichip synchronizationEasy interface to Blackfin™ SPORTInterpolation factors from 4x to 252xTest tone circuitryInterpolation DAC ModeGain control DACInternal divider allows references up to 2 GHz1.8V & 3.3V Power Supplies100 Lead TQFP packageAPPLICATIONSHFC Data, Telephony & Video ModemsWireless Base Station TransmissionBroadband Communications TransmissionsInternet Telephony

GENERAL DESCRIPTIONThe AD9957 functions as a universal I/Q modulator and agileupconverter for communications systems where cost, size,power consumption and dynamic performance are critical. TheAD9957 integrates a high speed Direct Digital Synthesizer(DDS), a high performance, high speed 14-bit digital to analogconverter (DAC), clock multiplier circuitry, digital filters andother DSP functions onto a single chip. It provides for baseband up-conversion for data transmission in a wired or wirelesscommunications system.The AD9957 is the third offering in a family of a quadraturedigital upconverters (QDUCs), which includes the AD9857 andAD9856. It offers performance gains in operating speed, powerconsumption and spectral performance. Unlike its predecessors,it also supports a 16-bit serial input mode for I/Q baseband data. The device can alternatively be programmed to operateas a single-tone sinusoidal source or as an interpolatingDAC.The Reference Clock input circuitry includes a crystal oscillator,a high speed divide-by-two input, and a low noise PLL for multiplicationof the reference clock frequency.The user interface to the control functions includes a serial porteasily configured to interface to the SPORT of the Blackfin DSPand profile pins which enable fast and easy shift keying of anysignal parameter (phase, frequency, and amplitude).

专业代理，全新到货，大量现货欢迎询问！！！
质优价廉，品质保证！

批号：无铅环保
专业代理全线产品，优势的进货渠道，专业的销售团队，一手货源，全国供应！
为您提供专业、快捷、可靠的产品

深圳飞弛宏科技有限公司

联 系 人： 李先生  13662688167

电话： 0755-83521389   传真：0755-83502530

公司地址：深圳市福田区振华路122号海外装饰大厦1606室