ZHCSN12B
December 2020 – October 2022
ADC3681
,
ADC3682
,
ADC3683
PRODUCTION DATA
1
特性
2
应用
3
说明
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
接收文档更新通知
10.2
支持资源
10.3
Trademarks
10.4
Electrostatic Discharge Caution
10.5
术语表
11
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RSB|40
MPQF185C
散热焊盘机械数据 (封装 | 引脚)
RSB|40
QFND255H
订购信息
zhcsn12b_oa
zhcsn12b_pm
1
特性
双通道 ADC
18 位 10、25、65MSPS ADC
本底噪声:-160dBFS/Hz
低功耗和优化的功率调节:
每通道 53mW (10MSPS) 至每通道 94mW (65MSPS)
延迟:1-2 个时钟周期
18 位,无丢码
INL/DNL:±7/±0.7LSB(典型值)
基准:外部或内部
输入带宽:900 MHz (3dB)
工业温度范围:-40°C 至 +105°C
片上数字滤波器(可选)
2 倍、4 倍、8 倍、16 倍、32 倍抽取率
32 位 NCO
串行 LVDS 数字接口(2 线、1 线和 1/2 线)
小尺寸:40-QFN (5x5mm) 封装
频谱性能 (f
IN
= 5MHz):
SNR:83.8dBFS
SFDR:89dBc HD2、HD3
SFDR:101dBFS 最严重毛刺
频谱性能 (f
IN
= 20 MHz):
SNR:82.6dBFS
SFDR:85dBc HD2、HD3
SFDR:97dBFS 最严重毛刺
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