AD9755ASTRL

更新时间： 2024-11-13 04:31:11

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
28页	532K
描述
14-Bit, 300 MSPS High Speed TxDAC+ D/A Converter

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AD9755ASTRL 数据手册

14-Bit, 300 MSPS

High Speed TxDAC+ D/A Converter

AD9755^*

FEATURES

FUNCTIONAL BLOCK DIAGRAM

14-Bit Dual Muxed Port DAC

300 MSPS Output Update Rate

Excellent SFDR and IMD Performance

SFDR to Nyquist @ 25 MHz Output: 71 dB

Internal Clock Doubling PLL

Differential or Single-Ended Clock Input

On-Chip 1.2 V Reference

DVDD

LATCH

DCOM

AVDD

ACOM

PORT1

PORT2

OUTA

OUTB

MUX

DAC

Single 3.3 V Supply Operation

Power Dissipation: 155 mW @ 3.3 V

48-Lead LQFP

CLK+

CLK–

CLKVDD

PLLVDD

CLKCOM

REFIO

FSADJ

PLL

CLOCK

MULTIPLIER

REFERENCE

AD9755

APPLICATIONS

Communications: LMDS, LMCS, MMDS

Base Stations

RESET LPF DIV0 DIV1 PLLLOCK

Digital Synthesis

QAM and OFDM

PRODUCT DESCRIPTION

The DAC utilizes a segmented current source architecture com-

bined with a proprietary switching technique to reduce glitch

energy and maximize dynamic accuracy. Differential current

outputs support single-ended or differential applications. The

differential outputs each provide a nominal full-scale current

from 2 mA to 20 mA.

The AD9755 is a dual, muxed port, ultrahigh speed, single-

channel, 14-bit CMOS DAC. It integrates a high quality 14-bit

TxDAC+ core, a voltage reference, and digital interface circuitry

into a small 48-lead LQFP package. The AD9755 offers excep-

tional ac and dc performance while supporting update rates up

to 300 MSPS.

The AD9755 is manufactured on an advanced low cost 0.35 µm

CMOS process. It operates from a single supply of 3.0 V to 3.6 V

and consumes 155 mW of power.

The AD9755 has been optimized for ultrahigh speed applica-

tions up to 300 MSPS where data rates exceed those possible on

a single data interface port DAC. The digital interface consists

of two buffered latches as well as control logic. These latches

can be time multiplexed to the high speed DAC in several ways.

This PLL drives the DAC latch at twice the speed of the exter-

nally applied clock and is able to interleave the data from the

two input channels. The resulting output data rate is twice that

of the two input channels. With the PLL disabled, an external

2× clock may be supplied and divided by two internally.

PRODUCT HIGHLIGHTS

1. The AD9755 is a member of a pin compatible family of high

speed TxDAC+s providing 10-, 12-, and 14-bit resolution.

2. Ultrahigh Speed 300 MSPS Conversion Rate.

3. Dual 14-Bit Latched, Multiplexed Input Ports. The AD9755

features a flexible digital interface allowing high speed data

conversion through either a single or dual port input.

The CLK inputs (CLK+/CLK–) can be driven either differentially

or single-ended, with a signal swing as low as 1 V p-p.

4. Low Power. Complete CMOS DAC function operates on

155 mW from a 3.0 V to 3.6 V single supply. The DAC full-

scale current can be reduced for lower power operation.

5. On-Chip Voltage Reference. The AD9755 includes a 1.20 V

temperature compensated band gap voltage reference.

*Protected by U.S. Patent numbers 5450084, 5568145, 5689257, and 5703519.

Other patents pending.

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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. 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 companies.

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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AD9755ASTRL 替代型号

型号	品牌	替代类型	描述	数据表
AD9755ASTZRL	ADI	完全替代	14-Bit, 300 MSPS High Speed TxDAC+® D/A Converter
AD9755ASTZ	ADI	完全替代	14-Bit, 300 MSPS High Speed TxDAC+® D/A Converter
AD9755AST	ADI	完全替代	12-Bit, 300 MSPS High-Speed TxDAC+?? D/A Converter

与AD9755ASTRL相关器件

型号	品牌	获取价格	描述	数据表
AD9755ASTZ	ADI	获取价格	14-Bit, 300 MSPS High Speed TxDAC+® D/A Converter
AD9755ASTZRL	ADI	获取价格	14-Bit, 300 MSPS High Speed TxDAC+® D/A Converter
AD9755-EB	ADI	获取价格	14-Bit, 300 MSPS High Speed TxDAC+ D/A Converter
AD976	ADI	获取价格	16-Bit, 100 kSPS/200 kSPS BiCMOS A/D Converters
AD976_15	ADI	获取价格	16-Bit, 100 kSPS/200 kSPS BiCMOS A/D Converters
AD9760	ADI	获取价格	10-Bit, 125 MSPS TxDAC D/A Converter
AD9760*	ADI	获取价格	10-Bit. 125 MSPS TxDAC D/A Converter
AD9760-50AR	ETC	获取价格	10-Bit Digital-to-Analog Converter
AD9760AR	ADI	获取价格	10-Bit, 125 MSPS TxDAC D/A Converter
AD9760AR50	ADI	获取价格	10-Bit, 125 MSPS TxDAC D/A Converter

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