AD9777-EB datasheet(1/60 Pages) AD

Part #	AD9777-EB

Description	16-Bit, 160 MSPS 2x/4x/8x Interpolating Dual TxDAC D/A Converter

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16-Bit, 160 MSPS 2x/4x/8x

Interpolating Dual TxDAC+® D/A Converter

AD9777

Rev. C

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

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

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

FEATURES

16-bit resolution, 160 MSPS/400 MSPS input/output

data rate

Selectable 2×/4×/8× interpolating filter

Programmable channel gain and offset adjustment

fS/4, fS/8 digital quadrature modulation capability

Direct IF transmission mode for 70 MHz + IFs

Enables image rejection architecture

Fully compatible SPI® port

Excellent ac performance

SFDR −73 dBc @ 2 MHz to 35 MHz

WCDMA ACPR 71 dB @ IF = 19.2 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

Twos 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

80-lead thin quad flat package, exposed pad (TQFP_EP)

APPLICATIONS

Communications

Analog quadrature modulation architecture

3G, multicarrier GSM, TDMA, CDMA systems

Broadband wireless, point-to-point microwave radios

Instrumentation/ATE

FUNCTIONAL BLOCK DIAGRAM

16

/2

16

/2

AD9777

DATA

ASSEMBLER

I

LATCH

Q

LATCH

MUX

CONTROL

SPI INTERFACE AND

CONTROL REGISTERS

HALF-BAND FILTERS ALSO CAN BE

CONFIGURED FOR ZERO STUFFING ONLY

*

I AND Q

NONINTERLEAVED

OR INTERLEAVED

DATA

16

CLOCK OUT

WRITE

SELECT

HALF-

BAND

FILTER1*

FILTER

BYPASS

MUX

IMAGE

REJECTION/

DUAL DAC

MODE

BYPASS

MUX

I/Q DAC

GAIN/OFFSET

REGISTERS

HALF-

BAND

FILTER2*

HALF-

BAND

FILTER3*

COS

IDAC

GAIN

DAC

DIFFERENTIAL

CLK

OFFSET

DAC

COS

IOUT

PRESCALER

PLL CLOCK MULTIPLIER AND CLOCK DIVIDER

PHASE DETECTOR

AND VCO

SIN

fDAC/2, 4, 8

(

fDAC)

Figure 1.

Similar Part No. - AD9777-EB

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Analog Devices	AD9777	5Mb / 48P	16-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC D/A Converter REV. 0
	AD9777	2Mb / 20P	300 MHz to 1000 MHz Quadrature Modulator REV. 0
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	AD9777BSV	5Mb / 48P	16-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC D/A Converter REV. 0
	AD9777EB	5Mb / 48P	16-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC D/A Converter REV. 0

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