AD9779BSV

更新时间： 2024-10-01 04:31:11

品牌	Logo	应用领域
亚德诺 - ADI		转换器数模转换器
页数	文件大小	规格书
34页	1089K
描述
Dual 16-Bit, 1.0 GSPS D/A Converter

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AD9779BSV 数据手册

Dual 16-Bit, 1.0 GSPS

D/A Converter

AD9779

Preliminary Technical Data

DAC that provides a sample rate of 1 GSPS, permitting multi

carrier generation up to its Nyquist frequency. It includes 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

quadrature modulators such as the AD8349. A serial peripheral

interface (SPI) provides for programming many internal

FEATURES

• 1.8/3.3 V Single Supply Operation

• Low power: 950mW (I_OUTFS= 20 mA; f_DAC= 1 GSPS, 4×

Interpolation

• DNL = 1.5 LSB, INL = 5.0 LSB

• SFDR =82 dBc to f_OUT= 100 MHz

• ACLR = 87 dBc @ 80 MHz IF

parameters and also enables read-back of status registers. The

output current can be programmed over a range of 10mA to 30mA.

The AD9779 is manufactured on an advanced 0.18µm CMOS

process and operates from 1.8V and 3.3V supplies for a total power

consumption of 950mW. It is supplied in a 100-lead QFP package.

• CMOS data interface with Autotracking Input Timing

• Analog Output: Adjustable 10-30mA (RL=25 Ω to 50 Ω)

• 100-lead Exposed Paddle TQFP Package

• Multiple Chip Synchronization Interface

• 84dB Digital Interpolation Filter Stopband Attenuation

• Digital Inverse Sinc Filter

PRODUCT HIGHLIGHTS

Ultra-low noise and Intermodulation Distortion (IMD) enable

high quality synthesis of wideband signals from baseband to high

intermediate frequencies.

APPLICATIONS

• Wireless Infrastructure

Direct Conversion

Single-ended CMOS interface supports a maximum input rate of

300 MSPS with 1x interpolation.

Transmit Diversity

• Wideband Communications Systems:

Point-to-Point Wireless, LMDS

Manufactured on a CMOS process, the AD9779 uses a proprietary

switching technique that enhances dynamic performance.

PRODUCT DESCRIPTION

The current outputs of the AD9779 can be easily configured for

various single-ended or differential circuit topologies.

The AD9779 is a dual 16-bit high performance, high frequency

FUNCTIONAL BLOCK DIAGRAM

Delay Line

SYNC_O

SYNC_I

Clock Generation/Distribution

DATACLK_OUT

Clock

Multiplier

2X/4X/8X

CLK+

CLK-

Data

Assembler

IOUT1_P

IOUT1_N

Sinc^-1

16-Bit

IDAC

P1D[15:0]

P2D[15:0]

I Latch

n * Fdac/8

n = 1, 2, 3… 7

Complex

Modulator

IOUT2_P

IOUT2_N

Q Latch

16-Bit

QDAC

Sinc^-1

Digital Controller

Gain

VREF

RSET

Reference

& Bias

Serial

Peripheral

Interface

Power-On

Reset

AUX1_P

AUX1_N

AUX2_P

AUX2_N

Offset

Figure 1 Functional Block Diagram

Rev. PrD

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

registered trademarks are the property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

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AD9779BSV 替代型号

型号	品牌	替代类型	描述	数据表
AD9779BSVZ	ADI	功能相似	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters

与AD9779BSV相关器件

型号	品牌	获取价格	描述	数据表
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
AD977AANZ	ADI	获取价格	16-Bit, 200 kSPS, Serial I/O A/D Converter

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