AD9739屬于開發(fā)板套件編程器的評(píng)估板-數(shù)模轉(zhuǎn)換器（DAC）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD9739評(píng)估板 - 數(shù)模轉(zhuǎn)換器（DAC）該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗(yàn)證的設(shè)計(jì)環(huán)境中對(duì)用于將數(shù)字?jǐn)?shù)據(jù)轉(zhuǎn)換為模擬格式的器件進(jìn)行性能或特性評(píng)估。重點(diǎn)器件涵蓋范圍從以適合學(xué)生或愛好者使用的方式實(shí)現(xiàn)的適度功能器件，到適合電信基礎(chǔ)設(shè)施應(yīng)用的高級(jí)器件。

GENERAL DESCRIPTION

The AD9739 is a 14-bit, 2.5 GSPS high performance RF digital-to-analog converter (DAC) capable of synthesizing wideband signals from dc up to 3.0 GHz. Its DAC core features a quad switch architecture that provides exceptionally low distortion performance with an industry-leading direct RF synthesis capability. This feature enables multicarrier generation up to the Nyquist frequency in baseband mode as well as second and third Nyquist zones in mix mode. The output current can be programmed over the 8.66 mA to 31.66 mA range.

FEATURES

Direct RF synthesis at 2.5 GSPS update rate

DC to 1.25 GHz in baseband mode

1.25 GHz to 3.0 GHz in mix mode

Industry leading single/multicarrier IF or RF synthesis

fOUT = 350 MHz, ACLR =80 dBc

fOUT = 950 MHz, ACLR = 78 dBc

fOUT = 2100 MHz, ACLR = 69 dBc

Dual-port LVDS data interface

Up to 1.25 GSPS operation

Source synchronous DDR clocking

Pin-compatible with the AD9739A

Multichip synchronization capability

Programmable output current: 8.7 mA to 31.7 mA

Low power: 1.16 W at 2.5 GSPS

APPLICATIONS

Broadband communications systems

Military jammers

Instrumentation, automatic test equipment

Radar, avionics