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AD9856

更新时间： 2024-02-18 04:03:49
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
32页 432K
描述
CMOS 200 MHz Quadrature Digital Upconverter

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AD9856 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：LFQFP,针数：48
Reach Compliance Code：compliantECCN代码：5A991.B
HTS代码：8542.39.00.01风险等级：1.47
JESD-30 代码：S-PQFP-G48JESD-609代码：e3
长度：7 mm湿度敏感等级：3
功能数量：1端子数量：48
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：LFQFP
封装形状：SQUARE封装形式：FLATPACK, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.6 mm标称供电电压：3 V
表面贴装：YES技术：CMOS
电信集成电路类型：TELECOM CIRCUIT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：30宽度：7 mm
Base Number Matches：1

AD9856 数据手册

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CMOS 200 MHz  
a
Quadrature Digital Upconverter  
AD9856  
APPLICATIONS  
FEATURES  
HFC Data, Telephony and Video Modems  
Wireless and Satellite Communications  
Cellular Basestations  
Universal Low Cost Modulator Solution for  
Communications Applications  
DC to 80 MHz Output Bandwidth  
Integrated 12-Bit D/A Converter  
Programmable Sample Rate Interpolation Filter  
Programmable Reference Clock Multiplier  
Internal SIN(x)/x Compensation Filter  
>52 dB SFDR @ 40 MHz AOUT  
>48 dB SFDR @ 70 MHz AOUT  
>80 dB Narrowband SFDR @ 70 MHz AOUT  
+3 V Single Supply Operation  
Space-Saving Surface-Mount Packaging  
Bidirectional Control Bus Interface  
Supports Burst and Continuous Tx Modes  
Single Tone Mode for Frequency Synthesis Applications  
Four Programmable, Pin-Selectable Modulator Profiles  
Direct Interface to AD8320/AD8321 PGA Cable Driver  
GENERAL DESCRIPTION  
The AD9856 integrates a high speed direct-digital synthesizer  
(DDS), a high performance, high speed 12-bit digital-to-analog  
converter (DAC), clock multiplier circuitry, digital filters and  
other DSP functions onto a single chip, to form a complete  
quadrature digital upconverter device. The AD9856 is intended  
to function as a universal I/Q modulator and agile upconverter  
for communications applications, where cost, size, power dissi-  
pation and dynamic performance are critical attributes.  
The AD9856 is available in a space-saving surface mount pack-  
age and specified to operate over the extended industrial tem-  
perature range of –40°C to +85°C.  
FUNCTIONAL BLOCK DIAGRAM  
AD9856  
4
؋
–8
؋
 
12  
12  
12  
12  
12  
12  
2
؋
 TO 63
؋
 
SELECTABLE  
INTERPOLATOR  
SELECTABLE  
INTERPOLATING  
HALFBANDS  
12  
12  
DC-80 MHz  
OUTPUT  
INV  
SINC  
12-BIT  
DAC  
COMPLEX  
DATA IN  
4
؋
–8
؋
 
2
؋
 TO 63
؋
 
SELECTABLE  
INTERPOLATOR  
12  
12  
12  
SELECTABLE  
INTERPOLATING  
HALFBANDS  
DAC  
R
SET  
12  
SINE  
DDS AND CONTROL FUNCTIONS  
SPI INTERFACE  
TO AD8320/AD8321  
PROGRAMMABLE  
CABLE DRIVER  
AMPLIFIER  
COSINE  
4
؋
–20
؋
PROG.  
CLOCK  
MULTIPLIER  
TxENABLE  
(I/Q SYNC)  
MASTER  
RESET  
BIDIRECTIONAL SPI CONTROL INTERFACE:  
32-BIT FREQUENCY TUNING WORD  
FREQUENCY UPDATE  
PROFILE  
SELECT  
3–4  
PROFILE  
SELECT  
1–2  
REFERENCE  
CLOCK IN  
INTERPOLATION FILTER RATE  
REFERENCE CLOCK MULTIPLIER RATE  
SPECTRAL PHASE INVERSION ENABLE  
CABLE DRIVER AMPLIFIER CONTROL  
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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  
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