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AD9778A

更新时间： 2024-02-12 04:41:12
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
56页 1188K
描述
Dual, 12-/14-/16-Bit,1 GSPS Digital-to-Analog Converters

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AD9778A 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：QFP
包装说明：HTFQFP, TQFP100,.63SQ针数：100
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：2.3
最大模拟输出电压：1 V最小模拟输出电压：-1 V
转换器类型：D/A CONVERTER输入位码：BINARY
输入格式：PARALLEL, WORDJESD-30 代码：S-PQFP-G100
JESD-609代码：e3长度：14 mm
最大线性误差 (EL)：0.0061%湿度敏感等级：3
位数：14功能数量：2
端子数量：100最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HTFQFP封装等效代码：TQFP100,.63SQ
封装形状：SQUARE封装形式：FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：260电源：1.8,3.3 V
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Other Converters标称供电电压：3.3 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：40
宽度：14 mmBase Number Matches：1

AD9778A 数据手册

 浏览型号AD9778A的Datasheet PDF文件第2页浏览型号AD9778A的Datasheet PDF文件第3页浏览型号AD9778A的Datasheet PDF文件第4页浏览型号AD9778A的Datasheet PDF文件第5页浏览型号AD9778A的Datasheet PDF文件第6页浏览型号AD9778A的Datasheet PDF文件第7页 
Dual, 12-/14-/16-Bit,1 GSPS  
Digital-to-Analog Converters  
AD9776A/AD9778A/AD9779A  
GENERAL DESCRIPTION  
FEATURES  
Low power: 1.0 W @ 1 GSPS, 600 mW @ 500 MSPS,  
full operating conditions  
Single carrier W-CDMA ACLR = 80 dBc @ 80 MHz IF  
Analog output: adjustable 8.7 mA to 31.7 mA,  
RL = 25 Ω to 50 Ω  
Novel 2×, 4×, and 8× interpolator/coarse complex modulator  
allows carrier placement anywhere in DAC bandwidth  
Auxiliary DACs allow control of external VGA and offset control  
Multiple chip synchronization interface  
High performance, low noise PLL clock multiplier  
Digital inverse sinc filter  
The AD9776A/AD9778A/AD9779A are dual, 12-/14-/16-bit,  
high dynamic range digital-to-analog converters (DACs) that  
provide a sample rate of 1 GSPS, permitting a multicarrier  
generation up to the Nyquist frequency. They include features  
optimized for direct conversion transmission applications,  
including complex digital modulation and gain and offset  
compensation. The DAC outputs are optimized to interface  
seamlessly with analog quadrature modulators such as the  
ADL537x FMOD series from Analog Devices, Inc. A 3-wire  
interface provides for programming/readback of many internal  
parameters. Full-scale output current can be programmed over  
a range of 10 mA to 30 mA. The devices are manufactured on  
an advanced 0.18 μm CMOS process and operate on 1.8 V and  
3.3 V supplies for a total power consumption of 1.0 W. They are  
enclosed in a 100-lead thin quad flat package (TQFP).  
100-lead, exposed paddle TQFP  
APPLICATIONS  
Wireless infrastructure  
W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTE  
Digital high or low IF synthesis  
PRODUCT HIGHLIGHTS  
Internal digital upconversion capability  
Transmit diversity  
Wideband communications: LMDS/MMDS, point-to-point  
1. Ultralow noise and intermodulation distortion (IMD)  
enable high quality synthesis of wideband signals from  
baseband to high intermediate frequencies.  
2. A proprietary DAC output switching technique enhances  
dynamic performance.  
3. The current outputs are easily configured for various  
single-ended or differential circuit topologies.  
4. CMOS data input interface with adjustable setup and hold.  
5. Novel 2×, 4×, and 8× interpolator/coarse complex  
modulator allows carrier placement anywhere in DAC  
bandwidth.  
TYPICAL SIGNAL CHAIN  
QUADRATURE  
MODULATOR/  
MIXER/  
COMPLEX I AND Q  
AMPLIFIER  
LO  
DC  
DC  
DIGITAL INTERPOLATION FILTERS  
I DAC  
POST DAC  
ANALOG FILTER  
FPGA/ASIC/DSP  
Q DAC  
A
AD9776A/AD9778A/AD9779A  
Figure 1.  
Rev. B  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700 www.analog.com  
Fax: 781.461.3113 ©2007–2008 Analog Devices, Inc. All rights reserved.  
 
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