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DAC5681Z

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
8页 379K
描述
16-BIT, 1.0 GSPS 2x-4x INTERPOLATING DIGITAL-TO-ANALOG CONVERTER (DAC)

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DAC5681Z 数据手册

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DAC5681Z  
www.ti.com  
SLLS865–AUGUST 2007  
16-BIT, 1.0 GSPS 2x-4x INTERPOLATING  
DIGITAL-TO-ANALOG CONVERTER (DAC)  
1
FEATURES  
DESCRIPTION  
•
16-Bit Digital-to-Analog Converter (DAC)  
The DAC5681Z is a 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  
DAC5681Z offers superior linearity and noise  
performance.  
•
•
1.0 GSPS Update Rate  
16-Bit, 1.0 GSPS Input LVDS Data Bus  
–
–
8 Sample Input FIFO  
On-Chip Delay Lock Loop  
•
High Performance  
73 dBc ACLR WCDMA TM1 at 180 MHz  
The DAC5681Z integrates a wideband LVDS port  
with on-chip termination, providing full 1.0 GSPS data  
transfer into the DAC, or half-rate data 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 sectral 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 or higher  
order image  
•
•
•
On-Chip 1.2-V Reference  
The current-steering architecture of the DAC5681Z  
consists of a segmented array of current sinking  
switches directing up to 20mA of full-scale current to  
complementary output nodes. An accurate on-chip  
voltage reference is temperature-compensated and  
delivers a stable 1.2-V reference voltage. Optionally,  
an external reference may be used.  
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 DAC5681Z is characterized for operation over  
the industrial temperature range of –40°C to 85°C  
and is available in a 64-pin QFN package. The device  
is pin upgradeable to the dual-channel DAC5682Z as  
well as the single-channel, non-interpolating  
DAC5681.  
ORDERING INFORMATION  
TA  
ORDER CODE  
DAC5681ZIRGCT  
DAC5681ZIRGCR  
PACKAGE DRAWING/TYPE(1) (2)(3)  
TRANSPORT MEDIA  
Small Tape and Reel  
Large Tape and Reel  
QUANTITY  
250  
–40°C to 85°C  
RGC / 64QFN Quad Flatpack No-Lead  
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.  
PRODUCT PREVIEW information concerns products in the  
Copyright © 2007, Texas Instruments Incorporated  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
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DAC5681Z 替代型号

型号 品牌 替代类型 描述 数据表
DAC5681 TI

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