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AD8345AREZ-REEL7 PDF预览

AD8345AREZ-REEL7

更新时间: 2024-01-25 08:05:18
品牌 Logo 应用领域
亚德诺 - ADI 射频微波
页数 文件大小 规格书
20页 359K
描述
140MHz - 1000MHz RF/MICROWAVE QUADRAPHASE MODULATOR, MO-153ABT, TSSOP-16

AD8345AREZ-REEL7 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:ObsoleteReach Compliance Code:compliant
风险等级:5.01特性阻抗:50 Ω
构造:COMPONENT最大输入功率 (CW):10 dBm
JESD-609代码:e3调制技术:QUADRAPHASE
最大工作频率:1000 MHz最小工作频率:140 MHz
最高工作温度:85 °C最低工作温度:-40 °C
射频/微波设备类型:MODULATOR端子面层:Matte Tin (Sn)
Base Number Matches:1

AD8345AREZ-REEL7 数据手册

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140 MHz to 1000 MHz  
Quadrature Modulator  
AD8345  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
140 MHz to 1000 MHz operating frequency  
+2.5 dBm P1dB @ 800 MHz  
−155 dBm/Hz noise floor  
0.5 degree RMS phase error (IS95)  
0.2 dB amplitude balance  
Single 2.7 V to 5.5 V supply  
AD8345  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
QBBP  
QBBN  
COM3  
COM3  
VPS2  
IBBP  
IBBN  
COM3  
COM1  
LOIN  
LOIP  
+
Pin-compatible with AD8346 and AD8349  
16-lead TSSOP_EP package  
PHASE  
SPLITTER  
VOUT  
COM2  
COM3  
APPLICATIONS  
VPS1  
ENBL  
Cellular communication systems  
W-CDMA/CDMA/GSM/PCS/ISM transceivers  
Fixed broadband access systems LMDS/MMDS  
Wireless LAN  
BIAS  
Figure 1.  
Wireless local loop  
Digital TV/CATV modulators  
Single sideband upconverter  
PRODUCT DESCRIPTION  
APPLICATIONS  
The AD8345 is a silicon RFIC quadrature modulator, designed  
for use from 140 MHz to 1000 MHz. Its excellent phase  
accuracy and amplitude balance enable the high performance  
direct modulation of an IF carrier.  
The AD8345 modulator can be used as the IF transmit  
modulator in digital communication systems such as GSM and  
PCS transceivers. It can also directly modulate an LO signal to  
produce QPSK and various QAM formats for 900 MHz  
communication systems as well as digital TV and CATV  
systems.  
The AD8345 accurately splits the external LO signal into two  
quadrature components through the polyphase phase splitter  
network. The I and Q LO components are mixed with the  
baseband I and Q differential input signals. Finally, the outputs  
of the two mixers are combined in the output stage to provide a  
single-ended 50 Ω drive at VOUT.  
Additionally, this quadrature modulator can be used with direct  
digital synthesizers in hybrid phase-locked loops to generate  
signals over a wide frequency range with millihertz resolution.  
The AD8345 modulator is supplied in a 16-lead TSSOP_EP  
package. Its performance is specified over a −40°C to +85°C  
temperature range. This device is fabricated on Analog Devices’  
advanced silicon bipolar process.  
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  
Fax: 781.461.3113  
www.analog.com  
© 2005 Analog Devices, Inc. All rights reserved.  
 

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