參數(shù)資料
型號(hào)： AD9785-DPG2-EBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 1/64頁(yè)
文件大?。?/td> 0K
描述： BOARD EVALUATION FOR AD9785
標(biāo)準(zhǔn)包裝： 1
系列： TxDAC®
DAC 的數(shù)量： 2
位數(shù)： 12
采樣率（每秒）： 800M
數(shù)據(jù)接口： 串行
設(shè)置時(shí)間： 22ms
DAC 型： 電流
工作溫度： -40°C ~ 85°C
已供物品： 板，纜線，CD
已用 IC / 零件： AD9785
Dual 12-/14-/16-Bit 800 MSPS DAC
with Low Power 32-Bit Complex NCO
AD9785/AD9787/AD9788
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
Fax: 781.461.3113
2008–2009 Analog Devices, Inc. All rights reserved.
FEATURES
Analog output: adjustable 8.7 mA to 31.7 mA,
RL = 25 Ω to 50 Ω
Low power, fine complex NCO allows carrier placement
anywhere in DAC bandwidth while adding <300 mW power
Auxiliary DACs allow I and Q gain matching and offset control
Includes programmable I and Q phase compensation
Internal digital upconversion capability
Multiple chip synchronization interface
High performance, low noise PLL clock multiplier
Digital inverse sinc filter
100-lead, exposed paddle TQFP package
APPLICATIONS
Wireless infrastructure
WCDMA, CDMA2000, TD-SCDMA, WiMAX, GSM
Digital high or low IF synthesis
Transmit diversity
Wideband communications
LMDS/MMDS, point-to-point
GENERAL DESCRIPTION
The AD9785/AD9787/AD9788 are 12-bit, 14-bit, and 16-bit,
high dynamic range TxDAC devices, respectively, that provide
a sample rate of 800 MSPS, permitting multicarrier generation
up to the Nyquist frequency. Features are included for optimizing
direct conversion transmit applications, including complex
digital modulation, as well as gain, phase, and offset compens-
ation. The DAC outputs are optimized to interface seamlessly
with analog quadrature modulators, such as the ADL537x
family from Analog Devices, Inc. A serial peripheral interface
(SPI) provides for programming and readback of many internal
parameters. Full-scale output current can be programmed over
a range of 10 mA to 30 mA. The AD978x family is manufactured
on a 0.18 μm CMOS process and operates from 1.8 V and 3.3 V
supplies. It is enclosed in a 100-lead TQFP package.
PRODUCT HIGHLIGHTS
1.
Low noise and intermodulation distortion (IMD) enable
high quality synthesis of wideband signals from baseband
to high intermediate frequencies.
2.
Proprietary DAC output switching technique enhances
dynamic performance.
3.
CMOS data input interface with adjustable setup and hold.
4.
Low power complex 32-bit numerically controlled
oscillators (NCOs).
TYPICAL SIGNAL CHAIN
FPGA/ASIC/DSP
DC
COMPLEX I AND Q
DC
LO
QUADRATURE
MODULATOR/
MIXER/
AMPLIFIER
I DAC
Q DAC
DIGITAL INTERPOLATION FILTERS
POST DAC
ANALOG FILTER
A
07
09
8-
0
01
Figure 1.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9785-EBZ 制造商:Analog Devices 功能描述:Evaluation Board For AD9785 制造商:Analog Devices 功能描述:DUAL 12B, 1GSPS D-A CONVERTER - Bulk 制造商:Analog Devices 功能描述:Digital to Analog Eval. Board
AD9786 制造商:AD 制造商全稱:Analog Devices 功能描述:16-Bit, 200 MSPS/500 MSPS TxDAC+ with 2】/4】/8】 Interpolation and Signal Processing
AD9786BSV 制造商:Analog Devices 功能描述:DAC 1-CH Interpolation Filter 16-bit 80-Pin TQFP EP 制造商:Analog Devices 功能描述:IC 16BIT DAC SMD 9786 TQFP80
AD9786BSVRL 制造商:Analog Devices 功能描述:DAC 1-CH Interpolation Filter 16-bit 80-Pin TQFP EP T/R
AD9786BSVZ 功能描述:IC DAC 16BIT INTERPOL/SP 80TQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:TxDAC+® 標(biāo)準(zhǔn)包裝:1 系列:- 設(shè)置時(shí)間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND
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