DAC3282 Datasheet, PDF (1/49 Pages) Texas Instruments – 16-Bit, 625 MSPS, 2x Interpolating, Dual-Channel Digital-to-Analog Converter (DAC)

DAC3282
www.ti.com
SLAS646 – DECEMBER 2009
16-Bit, 625 MSPS, 2x Interpolating, Dual-Channel Digital-to-Analog Converter (DAC)
Check for Samples: DAC3282
FEATURES
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• Dual, 16-Bit, 625 MSPS DACs
• 8-Bit Input LVDS Data Bus
– Byte-Wide Interleaved Data Load
– 8 Sample Input FIFO
– Optional Data Pattern Checker
• Multi-DAC Synchronization
• Optional 2x Interpolation Filter
• Zero-IF Sinc Correction Filter
• Fs/2 and ± Fs/4 Coarse Mixer
• Digital Offset Adjustment for LO Correction
• Temperature Sensor
• 3- or 4-Wire Serial Control Interface
• On Chip 1.2-V reference
• Differential Scalable Output: 2 to 20 mA
• Low Power: 950 mW at 625 MSPS, 845 mW at
500 MHz, Full Operating Conditions
• Space Saving Package: 48-pin 7×7mm QFN
APPLICATIONS
• Cellular Base Stations
• Diversity Transmit
• Wideband Communications
• Digital Synthesis
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DESCRIPTION
The DAC3282 is a dual-channel 16-bit 625 MSPS
digital-to-analog converter (DAC) with an 8-bit LVDS
input data bus with on-chip termination, optional 2x
interpolation filter, and internal voltage reference. The
DAC3282 offers superior linearity, noise and crosstalk
performance.
Input data can be interpolated by 2x through an
on-chip interpolating FIR filter with over 85 dB of
stop-band attenuation. Multiple DAC3282 devices can
be fully synchronized.
The DAC3282 allows either a complex or real output.
An optional coarse mixer in complex mode provides
frequency upconversion and the dual DAC output
produces a complex Hilbert Transform pair. The
digital offset correction feature allows optimization of
LO feed-through of an external quadrature modulator
performing the final single sideband RF
up-conversion.
The DAC3282 is characterized for operation over the
entire industrial temperature range of –40°C to 85°C
and is available in a 48-pin 7×7mm QFN package.
T_A
–40°C to 85°C
ORDER CODE
DAC3282IRGZT
DAC3282IRGZR
ORDERING INFORMATION
PACKAGE
DRAWING/TYPE^{(1) (2)}
RGZ / 48QFN Quad Flatpack
No-Lead
(1) Thermal Pad Size: 5,6 mm x 5,6 mm
(2) MSL Peak Temperature: Level-3-260C-168 HR
TRANSPORT
MEDIA
Tape and Reel
QUANTITY
250
2500
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated