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DAC5682Z

更新时间： 2024-11-21 04:14:07
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
56页 2428K
描述
16-BIT, 1.0 GSPS 2x-4x INTERPOLATING DUAL-CHANNEL DIGITAL-TO-ANALOG CONVERTER (DAC)

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DAC5682Z 数据手册

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DAC5682Z  
www.ti.com  
SLLS853A–AUGUST 2007–REVISED NOVEMBER 2007  
16-BIT, 1.0 GSPS 2x-4x INTERPOLATING DUAL-CHANNEL  
DIGITAL-TO-ANALOG CONVERTER (DAC)  
1
FEATURES  
DESCRIPTION  
•
16-Bit Digital-to-Analog Converter (DAC)  
•
•
1.0 GSPS Update Rate  
The DAC5682Z is a dual-channel 16-bit 1.0 GSPS  
digital-to-analog converter (DAC) with wideband  
LVDS data input, integrated 2x/4x interpolation filters,  
on-board clock multiplier and internal voltage  
reference. The DAC5682Z offers superior linearity,  
noise, crosstalk and PLL phase noise performance.  
16-Bit Wideband Input LVDS Data Bus  
–
–
8 Sample Input FIFO  
Interleaved I/Q data for Dual-DAC Mode  
•
High Performance  
73 dBc ACLR WCDMA TM1 at 180 MHz  
–
The DAC5682Z integrates a wideband LVDS port  
with on-chip termination. Full-rate input data can be  
transferred to a single DAC channel, or half-rate and  
1/4-rate input data can be interpolated by on-board  
2x or 4x FIR filters. Each interpolation FIR is  
configurable in either Low-Pass or High-Pass mode,  
allowing selection of a higher order output spectral  
image. An on-chip delay lock loop (DLL) simplifies  
LVDS interfacing by providing skew control for the  
LVDS input data clock.  
•
•
2x-32x Clock Multiplying PLL/VCO  
2x or 4x Interpolation Filters  
–
–
Stopband Transition 0.4–0.6 Fdata  
Filters Configurable in Either Low-Pass or  
High-Pass Mode  
–
Allows Selection of Higher Order Image  
•
•
•
•
Fs/4 Coarse Mixer  
On Chip 1.2 V Reference  
The DAC5682Z allows both complex or real output.  
An optional Fs/4 coarse mixer in complex mode  
provides coarse frequency upconversion and the dual  
DAC output produces a complex Hilbert Transform  
pair. An external RF quadrature modulator then  
performs the final single sideband up-conversion.  
Differential Scalable Output: 2 to 20 mA  
Package: 64-Pin 9 × 9 mm QFN  
APPLICATIONS  
•
•
•
•
•
Cellular Base Stations  
Broadband Wireless Access (BWA)  
WiMAX 802.16  
Fixed Wireless Backhaul  
Cable Modem Termination System (CMTS)  
The DAC5682Z is characterized for operation over  
the industrial temperature range of –40°C to 85°C  
and is available in a 64-pin QFN package. Other  
single-channel members of the family include the  
interpolating DAC5681Z  
DAC5681.  
and non-interpolating  
ORDERING INFORMATION  
TA  
ORDER CODE  
DAC5682ZIRGCT  
DAC5682ZIRGCR  
PACKAGE DRAWING/TYPE(1)(2)(3)  
TRANSPORT MEDIA  
Small Tape and Reel  
Large Tape and Reel  
QUANTITY  
250  
RGC / 64QFN Quad Flatpack  
No-Lead  
–40°C to 85°C  
2000  
(1) Thermal Pad Size: 7,4 mm × 7,4 mm  
(2) MSL Peak Temperature: Level-3-260C-168 HR  
(3) 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.  
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 © 2007, 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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