AD9739A

更新时间： 2024-09-16 08:18:15

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
44页	1560K
描述
14-Bit, 2.5 GSPS, RF Digital-to-Analog Converter

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AD9739A 数据手册

14-Bit, 2.5 GSPS,

RF Digital-to-Analog Converter

AD9739A

The AD9739A is manufactured on a 0.18 μm CMOS process

and operates from 1.8 V and 3.3 V supplies. It is supplied in a

160-ball chip scale ball grid array for reduced package

parasitics.

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

Dual-port LVDS data interface

Up to 1.25 GSPS operation

FUNCTIONAL BLOCK DIAGRAM

RESET

IRQ

Source synchronous DDR clocking

Pin-compatible with the AD9739

Programmable output current: 8.7 mA to 31.7 mA

Low power: 1.1 W at 2.5 GSPS

AD9739A

SDIO

SDO

1.2V

SPI

DAC BIAS

SCLK

VREF

I120

APPLICATIONS

Broadband communications systems

DOCSIS CMTS systems

Military jammers

Instrumentation, automatic test equipment

Radar, avionics

IOUTN

IOUTP

TxDAC

CORE

DCI

GENERAL DESCRIPTION

The AD9739A is a 14-bit, 2.5 GSPS high performance RF DAC

capable of synthesizing wideband signals from dc up to 3 GHz.

The AD9739A is pin and functionally compatible with the AD9739

with the exception that the AD9739A does not support

synchronization and is specified to operate between 1.6 GSPS

and 2.5 GSPS. By elimination of the synchronization circuitry,

some nonideal artifacts such as images and discrete clock spurs

remain stationary on the AD9739A between power-up cycles,

thus allowing for possible system calibration. AC linearity and

noise performance remain the same between the AD9739 and

AD9739A.

ꢀ

CLK DISTRIBUTION

DLL

(DIV-BY-4)

(MU CONTROLLER)

DCO

DACCLK

Figure 1.

PRODUCT HIGHLIGHTS

1. Ability to synthesize high quality wideband signals with

bandwidths of up to 1.25 GHz in the first or second

Nyquist zone.

The inclusion of on-chip controllers simplifies system integ-

ration. A dual-port, source synchronous, LVDS interface

simplifies the digital interface with existing FGPA/ASIC

technology. On-chip controllers are used to manage external

and internal clock domain variations over temperature to

ensure reliable data transfer from the host to the DAC core. A

serial peripheral interface (SPI) is used for device configuration

as well as readback of status registers.

2. A proprietary quad-switch DAC architecture provides

exceptional ac linearity performance while enabling mix-

mode operation.

3. A dual-port, double data rate, LVDS interface supports the

maximum conversion rate of 2500 MSPS.

4. On-chip controllers manage external and internal clock

domain skews.

5. Programmable differential current output with a 8.66 mA

to 31.66 mA range.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

12 3 4 5 6 7...44

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与AD9739A相关器件

型号	品牌	获取价格	描述	数据表
AD9739ABBCZ	ADI	获取价格	11-/14-Bit, 2.5 GSPS
AD9739ABBCZRL	ADI	获取价格	11-/14-Bit, 2.5 GSPS
AD9739A-EBZ	ADI	获取价格	11-/14-Bit, 2.5 GSPS
AD9739A-FMC-EBZ	ADI	获取价格	11-/14-Bit, 2.5 GSPS
AD9739BBC	ADI	获取价格	14-Bit, 2.5 GSPS, RF Digital-to-Analog Converter
AD9739BBCRL	ADI	获取价格	14-Bit, 2.5 GSPS, RF Digital-to-Analog Converter
AD9739BBCZ	ADI	获取价格	14-Bit, 2.5 GSPS, RF Digital-to-Analog Converter
AD9739BBCZRL	ADI	获取价格	14-Bit, 2.5 GSPS, RF Digital-to-Analog Converter
AD9739-R2-EBZ	ADI	获取价格	14-Bit, 2.5 GSPS, RF Digital-to-Analog Converter
AD974	ADI	获取价格	4-Channel, 16-Bit, 200 kSPS Data Acquisition System

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