Datasheet > AD9857_17

AD9857_17

更新时间： 2022-02-26 12:47:31

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
41页	893K
描述
CMOS 200 MSPS 14-Bit Quadrature Digital Upconverter

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AD9857_17 数据手册

CMOS 200 MSPS 14-Bit

Quadrature Digital Upconverter

AD9857

FEATURES

200 MHz internal clock rate

3.3 V single supply

14-bit data path

Single-ended or differential input reference clock

80-lead LQFP surface-mount packaging

Three modes of operation:

Quadrature modulator mode

Single-tone mode

Excellent dynamic performance:

80 dB SFDR @ 65 MHz ( 100 kHz) A_OUT

4× to 20× programmable reference clock multiplier

Reference clock multiplier PLL lock detect indicator

Internal 32-bit quadrature DDS

FSK capability

8-bit output amplitude control

Single-pin power-down function

Four programmable, pin-selectable signal profiles

SIN(x)/x correction (inverse SINC function)

Simplified control interface

Interpolating DAC mode

APPLICATIONS

HFC data, telephony, and video modems

Wireless base station

Agile, LO frequency synthesis

Broadband communications

10 MHz serial, 2-wire or 3-wire SPI®-compatible

FUNCTIONAL BLOCK DIAGRAM

INVERSE

CIC FILTER

FIXED

INTER-

POLATOR

AD9857

QUADRATURE

MODULATOR

DAC_RSET

PROGRAMMABLE

INTERPOLATOR

PARALLEL

DATA IN

(14-BIT)

IOUT

CIC

(2 - 63 )

14-BIT

DAC

INV

CIC

(4 )

INVERSE

SINC

FILTER

OUTPUT

SCALE

VALUE

DDS

CORE

TUNING

WORD

TIMING AND CONTROL

CONTROL REGISTERS

POWER-

DOWN

LOGIC

PROFILE

SELECT

LOGIC

REFCLK

CLOCK

MULTIPLIER

(4 – 20 )

MODE

CONTROL

PDCLK/ TxENABLE RESET

FUD

CIC

OVERFLOW

SERIAL

PORT

DIGITAL PS1 PS0

POWER-

DOWN

PLL

LOCK

CLOCK

INPUT

MODE

Figure 1.

Rev. C

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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