Datasheet > AD9776_15

AD9776_15

更新时间： 2024-01-29 06:09:30

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
56页	1532K
描述
Dual 12-/14-/16-Bit

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数据手册

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AD9776_15 数据手册

Dual 12-/14-/16-Bit,

1 GSPS, Digital-to-Analog Converters

AD9776/AD9778/AD9779

FEATURES

GENERAL DESCRIPTION

Low power: 1.0 W @ 1 GSPS, 600 mW @ 500 MSPS,

full operating conditions

SFDR = 78 dBc to f_OUT= 100 MHz

Single carrier WCDMA ACLR = 79 dBc @ 80 MHz IF

Analog output: adjustable 8.7 mA to 31.7 mA,

R_L= 25 Ω to 50 Ω

Novel 2×, 4×, and 8× interpolator/coarse complex modulator

allows carrier placement anywhere in DAC bandwidth

Auxiliary DACs allow control of external VGA and offset control

Multiple chip synchronization interface

High performance, low noise PLL clock multiplier

Digital inverse sinc filter

The AD9776/AD9778/AD9779 are dual, 12-/14-/16-bit, high

dynamic range, digital-to-analog converters (DACs) that pro-

vide a sample rate of 1 GSPS, permitting multicarrier generation

up to the Nyquist frequency. They include features optimized

for direct conversion transmit applications, including complex

digital modulation, and gain and offset compensation. The DAC

outputs are optimized to interface seamlessly with analog quad-

rature modulators such as the AD8349. A serial peripheral interface

(SPI®) provides for programming/readback of many internal

parameters. Full-scale output current can be programmed over a

range of 10 mA to 30 mA. The devices are manufactured on an

advanced 0.18 μm CMOS process and operate on 1.8 V and

3.3 V supplies for a total power consumption of 1.0 W. They are

enclosed in 100-lead TQFP packages.

100-lead, exposed paddle TQFP package

APPLICATIONS

Wireless infrastructure

WCDMA, CDMA2000, TD-SCDMA, WiMax, GSM

Digital high or low IF synthesis

Internal digital upconversion capability

Transmit diversity

PRODUCT HIGHLIGHTS

1. Ultralow noise and intermodulation distortion (IMD)

enable high quality synthesis of wideband signals from

baseband to high intermediate frequencies.

2. A proprietary DAC output switching technique enhances

dynamic performance.

Wideband communications: LMDS/MMDS, point-to-point

3. The current outputs are easily configured for various

single-ended or differential circuit topologies.

4. CMOS data input interface with adjustable set up and hold.

5. Novel 2×, 4×, and 8× interpolator/coarse complex

modulator allows carrier placement anywhere in DAC

bandwidth.

TYPICAL SIGNAL CHAIN

QUADRATURE

MODULATOR/

MIXER/

COMPLEX I AND Q

AMPLIFIER

DIGITAL INTERPOLATION FILTERS

I DAC

POST DAC

ANALOG FILTER

FPGA/ASIC/DSP

Q DAC

AD9779

Figure 1.

Rev. A

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 www.analog.com

12 3 4 5 6 7...56

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与AD9776_15相关器件

型号	品牌	获取价格	描述	数据表
AD9776A	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS Digital-to-Analog Converters
AD9776A_15	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS
AD9776ABSVZ	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS
AD9776ABSVZRL	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS
AD9776A-EBZ	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS
AD9776BSVZ	ROCHESTER	获取价格	DUAL, PARALLEL, WORD INPUT LOADING, 12-BIT DAC, PQFP100, LEAD FREE, MS-026AED-HD, TQFP-100
AD9776BSVZ1	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters
AD9776BSVZRL	ADI	获取价格	Dual 12-Bit, 1 GSPS, Digital-to-Analog Converter
AD9776BSVZRL1	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters
AD9776-EB	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters

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