AD9777

PRODUCTION

16-Bit 160 MSPS 2x/4x/8x Interpolating Dual TxDAC+^® D/A Converter

Data Sheet (Rev. C) Product Selection Table

Part Models: 2
1ku List Price: Starting From $57.56

Viewing:

Overview

16-bit resolution, 160 MSPS/400 MSPS input/output data rate
Selectable 2×/4×/8× interpolating filter
Programmable channel gain and offset adjustment
f_S/4, f_S/8 digital quadrature modulation capability

Fully compatible SPI^® port
Direct IF transmission mode for 70 MHz + IFs
Enables image rejection architecture
See datasheet for additional features

The AD9777 is the 16-bit member of a new pin-compatible family of high-speed dual Interpolating TxDAC+^® converters with a maximum input data rate of 160 MSPS (no interpolation) and maximum DAC update rate of 400 MSPS (8x interpolation). They feature a selectable interpolation rate (2x/4x/8x) and a complex modulator that can mix at Fs/2, Fs/4 or Fs/8. All configuration is accomplished through an easy to use 3- or 4-wire SPI interface.

When used with an external quadrature modulator (such as the AD8345 / AD8346 / AD8349) the AD977X can be used implement a more traditional baseband I/Q architecture or an image reject upconversion architecture by using its internal complex (I&Q) mixer. The latter architecture may be well suited for those applications demanding high modulation accuracy (i.e. 64 QAM) that digital modulation inherently provides. This offers the added benefit of suppressing the image inherent in an analog mixing operation, consequently reducing the number of filtering stages, and therefore the cost of the hardware required to achieve 3G and broadband spectral emission specifications. User-accessible Gain and Offset correction is accessed through the SPI port and improves sideband suppression and LO feedthrough, respectively. A direct IF mode allows synthesis of intermediate frequencies (IFs) above 70 MHz.

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

APPLICATIONS

Communications
Analog quadrature modulation architecture
3G, multicarrier GSM, TDMA, CDMA systems
Broadband wireless, point-to-point microwave radios
Instrumentation/ATE

Part Models: 2
1ku List Price: Starting From $57.56

Documentation

Data Sheet 1

AD9777: 16-Bit 160 MSPS 2x/4x/8x Interpolating Dual TxDAC+^® D/A Converter Data Sheet (Rev.C) 07/01/2002

Application Note 11

AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1 10/15/2004

AN-237: Choosing DACs for Direct Digital Synthesis 02/14/2015

AN-320B: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifiers, Part 2 10/15/2004

AN-302: Exploit Digital Advantages in an SSB Receiver 01/01/2000

AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design 09/26/2002

AN-642: Coupling a Single-Ended Clock Source to the Differential Clock Input of Third-Generation TxDAC® and TxDAC+® Products (Rev.0) 02/14/2015

AN-748: Set-Up and Hold Measurements in High Speed CMOS Input DACs (Rev.0) 02/14/2015

AN-808: Multicarrier CDMA2000 Feasibility (Rev.0) 11/09/2007

AN-595: Understanding Pin Compatibility in the TxDAC^® Line of High Speed D/A Converters (Rev.0) 02/14/2015

AN-640: Synchronizing Multiple AD9777s Using DATACLK Input Mode (Rev.0) 02/27/2003

AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC 08/07/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD9777BSVZ	80-Lead TQFP (12mm x 12mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9777BSVZRL	80-Lead TQFP (12mm x 12mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 15, 2016 - 14_0258 Assembly Transfer of Selected 14x14 LQFP, 14x14 LQFP_EP and 7x7,10x10,12x12,14x14 TQFP_EP Products to Amkor Philippines
		PCN14_0258_Form Detailed Parts List Material_Report Qualification Results Summary Qualification Results Summary Qualification Results Summary Qualification Results Summary Detailed Change Description Qualification Results Summary Qualification Results Summary
AD9777BSVZ	PRODUCTION
AD9777BSVZRL	PRODUCTION
Jun 16, 2009 - 09_0027 Conversion to Laser Mark for the LQFP Packages (Single Grades)
		adi48lqfp Form Material_Report
AD9777BSVZ	PRODUCTION
AD9777BSVZRL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Hardware Ecosystem

Parts	Product Life Cycle	Description
Clock ICs 6
AD9510	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Eight Outputs
AD9511	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Five Outputs
AD9512	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, Two 1.6 GHz Inputs, Dividers, Delay Adjust, Five Outputs
AD9513	RECOMMENDED FOR NEW DESIGNS	800 MHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs

AD9514	RECOMMENDED FOR NEW DESIGNS	1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs
AD9515	RECOMMENDED FOR NEW DESIGNS	1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Two Outputs
Modulators & Demodulators 15
ADRF6701	Obsolete	400 MHz to 1250 MHz Quadrature Modulator with 750 MHz to 1150 MHz Fractional-N PLL and Integrated VCO
ADRF6702	Obsolete	1200 MHz to 2400 MHz Quadrature Modulator with 1550 MHz to 2150 MHz Fractional-N PLL & Integrated VCO
ADRF6703	Obsolete	1550 MHz to 2650 MHz Quadrature Modulator with 2100 MHz to 2600 MHz Fractional-N PLL & Integrated VCO
ADRF6704	Obsolete	2050 MHz to 3000 MHz Quadrature Modulator with 2500 MHz to 2900 MHz Fractional-N PLL & Integrated VCO
AD8345	PRODUCTION	140 MHz to 1000 MHz Quadrature Modulator
AD8346	PRODUCTION	2.5 GHz Direct Conversion Quadrature Modulator
ADL5370	PRODUCTION	300 MHz TO 1000 MHz Quadrature Modulator
ADL5371	RECOMMENDED FOR NEW DESIGNS	500 MHz TO 1500 MHz Quadrature Modulator
ADL5372	PRODUCTION	1500 MHz TO 2500 MHz Quadrature Modulator
ADL5373	PRODUCTION	2300 MHz TO 3000 MHz Quadrature Modulator
ADL5374	Obsolete	3000 MHz TO 4000 MHz Quadrature Modulator
ADL5375	PRODUCTION	400 MHz TO 6 GHz Broadband Quadrature Modulator
AD8349	PRODUCTION	700 MHz TO 2.7 GHz Direct Up-Conversion Quadrature Modulator
ADL5385	RECOMMENDED FOR NEW DESIGNS	30 MHz TO 2200 MHz Quadrature Modulator
ADL5386	Obsolete	50 MHz to 2200 MHz Quadrature Modulator with Integrated Detector and VVA
Operational Amplifiers (Op Amps) 3
AD8021	PRODUCTION	Low Noise, High Speed Amplifier for 16-Bit Systems
ADA4899-1	PRODUCTION	Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp
ADA4897-1	RECOMMENDED FOR NEW DESIGNS	1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers

Parts	Product Life Cycle	Description
AD9125	RECOMMENDED FOR NEW DESIGNS	Dual, 16-Bit, 1000 MSPS, TxDAC+^® Digital-to-Analog Converter

Latest Discussions

1 Years Ago

2 Years Ago