AD9779A-EBZ

更新时间： 2024-11-30 12:30:51

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
56页	1177K
描述
Dual, 12-/14-/16-Bit,1 GSPS

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AD9779A-EBZ 数据手册

Dual, 12-/14-/16-Bit,1 GSPS

Digital-to-Analog Converters

AD9776A/AD9778A/AD9779A

GENERAL DESCRIPTION

FEATURES

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

full operating conditions

Single carrier W-CDMA ACLR = 80 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 AD9776A/AD9778A/AD9779A are dual, 12-/14-/16-bit,

high dynamic range digital-to-analog converters (DACs) that

provide a sample rate of 1 GSPS, permitting a multicarrier

generation up to the Nyquist frequency. They include features

optimized for direct conversion transmission applications,

including complex digital modulation and gain and offset

compensation. The DAC outputs are optimized to interface

seamlessly with analog quadrature modulators such as the

ADL537x FMOD series from Analog Devices, Inc. A 3-wire

interface 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 a 100-lead thin quad flat package (TQFP).

100-lead, exposed paddle TQFP

APPLICATIONS

Wireless infrastructure

W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTE

Digital high or low IF synthesis

PRODUCT HIGHLIGHTS

Internal digital upconversion capability

Transmit diversity

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

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.

3. The current outputs are easily configured for various

single-ended or differential circuit topologies.

4. CMOS data input interface with adjustable setup 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

AD9776A/AD9778A/AD9779A

Figure 1.

Rev. B

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AD9779A-EBZ相关器件

型号	品牌	获取价格	描述	数据表
AD9779BSV	ADI	获取价格	Dual 16-Bit, 1.0 GSPS D/A Converter
AD9779BSVZ	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters
AD9779BSVZ1	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters
AD9779BSVZRL	ROCHESTER	获取价格	DUAL, PARALLEL, WORD INPUT LOADING, 16-BIT DAC, PQFP100, ROHS COMPLIANT, MS-026AED-HD, TQF
AD9779BSVZRL1	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters
AD9779-EBZ1	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters
AD9779PCB	ADI	获取价格	Dual 16-Bit, 1.0 GSPS D/A Converter
AD977A	ADI	获取价格	16-Bit, 100 kSPS/200 kSPS BiCMOS A/D Converter
AD977A_15	ADI	获取价格	16-Bit, 100 kSPS/200 kSPS BiCMOS A/D Converter
AD977AAN	ADI	获取价格	16-Bit, 100 kSPS/200 kSPS BiCMOS A/D Converter

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