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參數資料
| 型號： | AD9877 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Mixed-Signal Front End Set-Top Box, Cable Modem |
| 中文描述： | 混合信號前端機頂盒，電纜調制解調器 |
| 文件頁數： | 2/36頁 |
| 文件大小： | 1094K |
| 代理商： | AD9877 |
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AD9877
TABLE OF CONTENTS
Specifications.....................................................................................4
Rev. B | Page 2 of 36
Absolute Maximum Ratings............................................................7
Explanation of Test Levels...........................................................7
Thermal Characteristics..............................................................7
ESD Caution..................................................................................7
Pin Configuration and Function Descriptions.............................8
Typical Performance Characteristics...........................................10
Terminology....................................................................................12
Theory of Operation......................................................................13
Transmit Section.........................................................................13
Clock and Oscillator Circuitry.................................................14
Programmable Clock Output REFCLK...................................15
Reset and Transmit Power-Down ............................................16
Σ-Δ Outputs................................................................................17
Register Map and Bit Definitions.................................................18
Register 0x00—Initialization ....................................................19
Register 0x01—Clock Configuration.......................................19
Register 0x02—Power-Down....................................................19
Register 0x03–0x06—Σ-Δ Control Words..............................19
Register 0x08—ADC Clock Configuration............................20
Register 0x0C—Die Revision....................................................20
Register 0x0D—Tx Frequency Tuning Words LSBs..............20
Register 0x0E—DAC Gain Control.........................................20
Register 0x0F—Tx Path Configuration...................................20
Registers 0x10–0x1F—Burst Parameter..................................20
Serial Interface for Register Control............................................22
General Operation of the Serial Interface...............................22
Instruction Byte..........................................................................22
Serial Interface Port Pin Description.......................................22
MSB/LSB Transfers.................................................................... 22
Notes on Serial Port Operation................................................ 23
Transmit Path (Tx)......................................................................... 24
Transmit Timing......................................................................... 24
Data Assembler........................................................................... 24
Half-Band Filters (HBFs).......................................................... 24
Cascaded Integrator-Comb (CIC) Filter................................. 24
Combined Filter Response........................................................ 25
Tx Signal Level Considerations................................................ 27
Tx Throughput and Latency..................................................... 27
Digital-to-Analog Converter.................................................... 27
Programming the AD8321/AD8325 or AD8322/AD8327 Cable
Driver Amplifier Gain Control..................................................... 29
Receive Path (Rx) ........................................................................... 30
ADC Theory of Operation........................................................ 30
Receive Timing........................................................................... 30
Driving the Analog Inputs........................................................ 30
Op Amp Selection Guide.......................................................... 31
ADC Differential Inputs............................................................ 31
ADC Voltage References........................................................... 32
PCB Design Considerations.......................................................... 33
Component Placement.............................................................. 33
Power Planes and Decoupling.................................................. 33
Ground Planes............................................................................ 33
Signal Routing............................................................................. 34
Outline Dimensions....................................................................... 35
Ordering Guide .......................................................................... 35
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相關代理商/技術參數 |
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| AD9877ABS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD9877ABS-1 | 制造商:Analog Devices 功能描述: |
| AD9877ABSZ | 功能描述:IC PROCESSOR FRONT END 100MQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模擬前端 (AFE) 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:- 通道數:2 功率（瓦特）:- 電壓 - 電源，模擬:3 V ~ 3.6 V 電壓 - 電源，數字:3 V ~ 3.6 V 封裝/外殼:32-VFQFN 裸露焊盤 供應商設備封裝:32-QFN（5x5） 包裝:帶卷 (TR) |
| AD9877BS | 制造商:Analog Devices 功能描述: |
| AD9877-EB | 制造商:Analog Devices 功能描述: |
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