AD9777EB

更新时间： 2024-11-29 22:50:03

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
48页	5676K
描述
16-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC+ D/A Converter

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中文翻译

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数据手册

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AD9777EB 数据手册

16-Bit, 160 MSPS 2ꢀ/4ꢀ/8ꢀ

Interpolating Dual TxDAC+ D/A Converter

AD9777^*

FEATURES

APPLICATIONS

16-Bit Resolution, 160/400 MSPS Input/Output Data Rate

Selectable 2ꢀ/4ꢀ/8ꢀ Interpolating Filter

Programmable Channel Gain and Offset Adjustment

f_S/4, f_S/8 Digital Quadrature Modulation

Capability

Communications

Analog Quadrature Modulation Architectures

3G, Multicarrier GSM, TDMA, CDMA Systems

Broadband Wireless, Point-to-Point Microwave Radios

Instrumentation/ATE

Direct IF Transmission Mode for 70 MHz + IFs

Enables Image Rejection Architecture

Fully Compatible SPI Port

Excellent AC Performance

SFDR –73 dBc @ 2 MHz–35 MHz

WCDMA ACPR 71 dB @ IF = 71 MHz

Internal PLL Clock Multiplier

Selectable Internal Clock Divider

Versatile Clock Input

Differential/Single-Ended Sine Wave or

TTL/CMOS/LVPECL Compatible

Versatile Input Data Interface

GENERAL DESCRIPTION

The AD9777 is the 16-bit member of the AD977x pin compatible,

high performance, programmable 2×/4×/8× interpolating TxDAC+

family. The AD977x family features a serial port interface (SPI)

providing a high level of programmability, thus allowing for

enhanced system level options. These options include: selectable

2×/4×/8× interpolation filters; f_S/2, f_S/4, or f_S/8 digital quadrature

modulation with image rejection; a direct IF mode; programmable

channel gain and offset control; programmable internal clock

divider; straight binary or two’s complement data interface; and

a single-port or dual-port data interface.

Two’s Complement/Straight Binary Data Coding

Dual-Port or Single-Port Interleaved Input Data

Single 3.3 V Supply Operation

Power Dissipation: Typical 1.2 W @ 3.3 V

On-Chip 1.2 V Reference

The selectable 2×/4×/8× interpolation filters simplify the require-

ments of the reconstruction filters while simultaneously enhancing

the TxDAC+ family’s pass-band noise/distortion performance.

The independent channel gain and offset adjust registers allow

the user to calibrate LO feedthrough and sideband suppression

(continued on page 2)

80-Lead Thermally Enhanced TQFP Package

FUNCTIONAL BLOCK DIAGRAM

IDAC

COS

AD9777

HALF-

BAND

HALF-

BAND

HALF-

BAND

OFFSET

DAC

GAIN

DAC

FILTER 1

FILTER 2 FILTER 3

DATA

SIN

f_DAC/2, 4, 8

SIN

ASSEMBLER

IMAGE

REJECTION/

DUAL DAC

MODE

BYPASS

MUX

I/Q DAC

GAIN/OFFSET

REGISTERS

LATCH

I AND Q

NONINTERLEAVED

INTERLEAVED

DATA

LATCH

FILTER

BYPASS

MUX

COS

WRITE

MUX

CONTROL

IDAC

OUT

SELECT

(f_DAC)

CLOCK OUT

PRESCALER

SPI INTERFACE AND

CONTROL REGISTERS

DIFFERENTIAL

CLK

PHASE DETECTOR

AND VCO

HALF-BAND FILTERS ALSO CAN BE

CONFIGURED FOR "ZERO STUFFING ONLY"

PLL CLOCK MULTIPLIER AND CLOCK DIVIDER

TxDAC+ is a registered trademark of Analog Devices, Inc.

*Protected by U.S. Patent Numbers, 5568145, 5689257, and 5703519. Other patents pending.

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

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

use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

12 3 4 5 6 7...48

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与AD9777EB相关器件

型号	品牌	获取价格	描述	数据表
AD9777-EB	ADI	获取价格	16-Bit, 160 MSPS 2x/4x/8x Interpolating Dual TxDAC D/A Converter
AD9778	ADI	获取价格	300 MHz to 1000 MHz Quadrature Modulator
AD9778_15	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters
AD9778A	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS Digital-to-Analog Converters
AD9778A_15	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS Digital-to-Analog Converters
AD9778ABSVZ	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS
AD9778ABSVZRL	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS
AD9778A-EBZ	ADI	获取价格	Dual, 12-/14-/16-Bit,1 GSPS
AD9778BSVZ	ADI	获取价格	Dual 14-Bit, 1 GSPS, Digital-to-Analog Converter
AD9778BSVZ1	ADI	获取价格	Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters

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