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上传时间: 2009-12-02
详细说明： ADI公司的这款调谐器芯片是当前主流且应用很广的芯片之一，有需要的可以下下来看看，这个是完整版 目录： TABLE OF CONTENTS Features............ 1 Functional Block Diagram............ 1 Applications .... 1 General Description......... 1 Table of Contents.............. 2 Revision History............... 2 Specifications .................... 3 Absolute Maximum Ratings ......... 5 ESD Caution ................. 5 Pin Configuration and Function Descriptions ..... 6 Terminology.... 8 Typical Performance Characteristics.... 9 Functional Descriptions ..............13 I2C Operation ......... ....13 I2C Read/Write Address ..........13 I2C Bus Format ...........13 Timing Characteristics............14 I2C Register Map ........16 Detailed Register Description .........18 RFAGC Setting ...........23 BBAGC Setting...........23 Theory of Operation......24 RF LNA, PGA and I/Q Down-Converter........24 Local Oscillator...........24 PLL ....24 Baseband LPF and VGA..........24 Automatic Gain Control..........25 RFRSSI.......25 Hardware/Software/Time-Slicing Power Down .....26 Applications.....................27 RF Input Stage.............28 VCO Bias/Bypass Capacitors...........28 Digital Interface - I2C/Reset....28 Isolation from Digital Part......28 BBVGA Interconnections .......28 Reference Clock Selection.......29 PLL Setting..................29 Three Power Down Modes .....30 Evaluation Board ............31 Evaluation Board Bill of Materials (BOM) ......31 Evaluation Board Schematics ..........32 PCB Layers ..................33 Thermal Considerations .........34 Outline Dimensions .......35 Recommended PCB Land Pattern ......36 Ordering Guide ..........36 ...展开收缩
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