JAJSKW0B
December 2020 – October 2022
ADC3681
,
ADC3682
,
ADC3683
PRODUCTION DATA
1
特長
2
アプリケーション
3
概要
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics - Power Consumption
6.6
Electrical Characteristics - DC Specifications
6.7
Electrical Characteristics - AC Specifications
6.8
Timing Requirements
6.9
Typical Characteristics - ADC3681
6.10
Typical Characteristics - ADC3682
6.11
Typical Characteristics - ADC3683
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Analog Input
8.3.1.1
Analog Input Bandwidth
8.3.1.2
Analog Front End Design
8.3.1.2.1
Sampling Glitch Filter Design
8.3.1.2.2
Analog Input Termination and DC Bias
8.3.1.2.2.1
AC-Coupling
8.3.1.2.2.2
DC-Coupling
8.3.1.3
Auto-Zero Feature
8.3.2
Clock Input
8.3.2.1
Single Ended vs Differential Clock Input
8.3.2.2
Signal Acquisition Time Adjust
8.3.3
Voltage Reference
8.3.3.1
Internal voltage reference
8.3.3.2
External voltage reference (VREF)
8.3.3.3
External voltage reference with internal buffer (REFBUF)
8.3.4
Digital Down Converter
8.3.4.1
DDC MUX
8.3.4.2
Digital Filter Operation
8.3.4.3
FS/4 Mixing with Real Output
8.3.4.4
Numerically Controlled Oscillator (NCO) and Digital Mixer
8.3.4.5
Decimation Filter
8.3.4.6
SYNC
8.3.4.7
Output Formatting with Decimation
8.3.5
Digital Interface
8.3.5.1
Output Formatter
8.3.5.2
Output Scrambler
8.3.5.3
Output Bit Mapper
8.3.5.4
Output Interface/Mode Configuration
8.3.5.4.1
Configuration Example
8.3.5.5
Output Data Format
8.3.6
Test Pattern
8.4
Device Functional Modes
8.4.1
Normal Operation
8.4.2
Power Down Options
8.4.3
Digital Channel Averaging
8.5
Programming
8.5.1
Configuration using PINs only
8.5.2
Configuration using the SPI interface
8.5.2.1
Register Write
8.5.2.2
Register Read
8.6
Register Map
8.6.1
Detailed Register Description
9
Application Information Disclaimer
9.1
Typical Application
9.1.1
Design Requirements
9.1.2
Detailed Design Procedure
9.1.2.1
Input Signal Path
9.1.2.2
Sampling Clock
9.1.2.3
Voltage Reference
9.1.3
Application Curves
9.2
Initialization Set Up
9.2.1
Register Initialization During Operation
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Receiving Notification of Documentation Updates
10.2
サポート・リソース
10.3
Trademarks
10.4
Electrostatic Discharge Caution
10.5
Glossary
11
Mechanical, Packaging, and Orderable Information
7
Parameter Measurement Information
Figure 7-1
Timing diagram: 2-wire SLVDS (default output bit mapping)
Figure 7-2
Timing diagram: 1-wire SLVDS (default output bit mapping)
Figure 7-3
Timing diagram: 1/2-wire SLVDS (default output bit mapping)