ad80164absvz Analog Devices, Inc., ad80164absvz Datasheet

ad80164absvz

Manufacturer Part Number

ad80164absvz

Description

Dual, 12-/14-/16-bit,1 Gsps Digital-to-analog Converters

Manufacturer

Analog Devices, Inc.

Datasheet

1.AD80164ABSVZ.pdf (68 pages)

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FEATURES

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

SFDR = 78 dBc to f

Single carrier WCDMA ACLR = 79 dBc @ 80 MHz IF

Analog output: adjustable 8.7 mA to 31.7 mA,

Novel 2×, 4×, and 8× interpolator/coarse complex modulator

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

100-lead, exposed paddle TQFP

APPLICATIONS

Wireless infrastructure

Digital high or low IF synthesis

Internal digital upconversion capability

Transmit diversity

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

Rev. 0

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.

full operating conditions

allows carrier placement anywhere in DAC bandwidth

WCDMA, CDMA2000, TD-SCDMA, WiMax, GSM

= 25 Ω to 50 Ω

OUT

= 100 MHz

FPGA/ASIC/DSP

COMPLEX I AND Q

DIGITAL INTERPOLATION FILTERS

TYPICAL SIGNAL CHAIN

1 GSPS, Digital-to-Analog Converters

AD9779A

Figure 1.

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

Tel: 781.329.4700

Fax: 781.461.3113

GENERAL DESCRIPTION

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 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 ADL537x FMOD series

from Analog Devices, Inc. A serial peripheral interface (SPI) pro-

vides 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 TQFP.

PRODUCT HIGHLIGHTS

Q DAC

I DAC

AD9776A/AD9778A/AD9779A

Ultralow noise and intermodulation distortion (IMD)

enable high quality synthesis of wideband signals from

baseband to high intermediate frequencies.

A proprietary DAC output switching technique enhances

dynamic performance.

The current outputs are easily configured for various single-

ended or differential circuit topologies.

CMOS data input interface with adjustable set up and hold.

Novel 2×, 4×, and 8× interpolator/coarse complex modula-

tor allows carrier placement anywhere in DAC bandwidth.

QUADRATURE

MODULATOR/

AMPLIFIER

MIXER/

ANALOG FILTER

POST DAC

Dual 12-/14-/16-Bit,

www.analog.com

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