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DAC5689IRGCT датащи(PDF) 1 Page - Texas Instruments

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номер детали DAC5689IRGCT
подробное описание детали  16-BIT 800 MSPS 2x-8x INTERPOLATING DUAL-CHANNEL DIGITAL-TO-ANALOG CONVERTER (DAC)
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

DAC5689IRGCT датащи(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
DAC5689
www.ti.com .......................................................................................................................................................................................... SLLS989 – SEPTEMBER 2009
16-BIT, 800 MSPS 2x–8x INTERPOLATING DUAL-CHANNEL
DIGITAL-TO-ANALOG CONVERTER (DAC)
• Dual, 16-Bit, 800 MSPS DACs
The DAC5689 is a dual-channel 16-bit 800 MSPS
digital-to-analog converter (DAC) with dual CMOS
• Dual, 16-Bit, 250 MSPS CMOS Input Data
digital data bus, integrated 2x-8x interpolation filters,
16 Sample Input FIFO
a
fine
frequency
mixer
with
32-bit
complex
Flexible Input Data Bus Options
numerically
controlled
oscillator
(NCO),
IQ
• High Performance
compensation,
and
internal
voltage
reference.
Different modes of operation enable or bypass
81 dBc ACLR WCDMA TM1 at 70 MHz
various signal processing blocks. The DAC5689
• Selectable 2x–8x Interpolation Filters
offers
superior
linearity,
noise
and
crosstalk
Stop-band Attenuation > 80 dB
performance.
• Complex Mixer with 32-Bit NCO
The DAC5689 dual CMOS data bus provides 250
• Digital Quadrature Modulator Correction
MSPS input data transfer per DAC channel. Several
input data options are available: dual-bus data,
Gain, Phase and Offset Correction
single-bus
interleaved
data,
even
and
odd
• Digital Inverse SINC Filter
multiplexing at half-rate, and an input FIFO with either
• 3- or 4-Wire Serial Control Interface
external or internal clock to ease interface timing.
Input data can be interpolated 2x, 4x or 8x by
• On Chip 1.2-V Reference
on-board digital interpolating FIR filters with over 80
• Differential Scalable Output: 2 to 20 mA
dB of stop-band attenuation.
• Package: 64-pin 9×9mm QFN
The DAC5689 allows both complex or real output. An
optional 32-bit NCO/mixer in complex mode provides
frequency upconversion and the dual DAC output
• Cellular Base Stations
produces a complex Hilbert Transform pair. A digital
• Broadband Wireless Access (BWA)
Inverse SINC filter compensates for the natural DAC
sin(x)/x frequency roll-off. The digital Quadrature
• WiMAX 802.16
Modulator
Correction
(QMC)
feature
allows
IQ
• Fixed Wireless Backhaul
compensation of phase, gain and offset to maximize
• Cable Modem Termination System (CMTS)
sideband rejection and minimize LO feed-through of
an external quadrature modulator performing the final
single sideband RF up-conversion.
The DAC5689 is pin upgradeable to the DAC5688
which includes a clock multiplying PLL. The DAC5689
is characterized for operation over the industrial
temperature range of -40°C to 85°C and is available
in a 64-pin 9x9mm QFN package.
ORDERING INFORMATION(1)(2)
ORDER CODE
PACKAGE QTY
PACKAGE
TA = –40°C to 85°C
TAPE AND REEL FORMAT
DRAWING/TYPE(3) (4)
DAC5689IRGCT
250
RGC / 64QFN
Quad FlatpackNo-Lead
DAC5689IRGCR
2000
(1)
For correct DAC5689 operation, bits [1:0] in register CONFIG26 need to be set to "10" at device startup (see Recommended Startup
Sequence).
(2)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
(3)
Thermal Pad Size: 7,4 mm × 7,4 mm
(4)
MSL Peak Temperature: Level-3-260C-168 HR
1
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.
Copyright © 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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