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参数资料
| 型号： | AD9778A-DPG2-EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/56页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD9778A |
| 标准包装： | 1 |
| 系列： | * |
| DAC 的数量： | 2 |
| 位数： | 14 |
| 采样率（每秒）： | 1G |
| 数据接口： | 并联 |
| DAC 型： | 电流 |
| 工作温度： | -40°C ~ 85°C |
| 已供物品： | * |
| 已用 IC / 零件： | AD9778A |
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Dual, 12-/14-/16-Bit,1 GSPS
Digital-to-Analog Converters
AD9776A/AD9778A/AD9779A
Rev. B
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
www.analog.com
Fax: 781.461.3113
2007–2008 Analog Devices, Inc. All rights reserved.
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
100-lead, exposed paddle TQFP
APPLICATIONS
Wireless infrastructure
W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTE
Digital high or low IF synthesis
Internal digital upconversion capability
Transmit diversity
Wideband communications: LMDS/MMDS, point-to-point
GENERAL DESCRIPTION
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).
PRODUCT HIGHLIGHTS
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
FPGA/ASIC/DSP
DC
COMPLEX I AND Q
DC
LO
QUADRATURE
MODULATOR/
MIXER/
AMPLIFIER
I DAC
Q DAC
DIGITAL INTERPOLATION FILTERS
AD9776A/AD9778A/AD9779A
POST DAC
ANALOG FILTER
A
0
64
52
-114
Figure 1.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9778A-EBZ | 制造商:Analog Devices 功能描述:Dual 12 /14 /16 Bit, 1 GSPS, Digital To Analog Converters Development Kit 制造商:Analog Devices 功能描述:DUAL 14B, 1.0 GSPS TXDAC - Bulk |
| AD9778BSVZ | 功能描述:IC DAC 14BIT DUAL 1GSPS 100TQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散（最大）:941mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC W 包装:带卷 (TR) 输出数目和类型:8 电压，单极 采样率（每秒）:* |
| AD9778BSVZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters |
| AD9778BSVZRL | 功能描述:IC DAC 14BIT DUAL 1GSPS 100TQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散（最大）:100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC（J 形引线） 供应商设备封装:28-PLCC（11.51x11.51） 包装:带卷 (TR) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:143k |
| AD9778BSVZRL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters |
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