ZHCSAT7H
December 2012 – October 2014
AFE4490
PRODUCTION DATA.
1
特性
2
应用范围
3
说明
4
修订历史记录
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
Handling Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements: Serial Interface
7.7
Supply Ramp and Power-Down Timing Requirements
7.8
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Receiver Channel
8.3.1.1
Receiver Front-End
8.3.1.2
Ambient Cancellation Scheme
8.3.1.3
Receiver Control Signals
8.3.1.4
Receiver Timing
8.3.2
Clocking and Timing Signal Generation
8.3.3
Timer Module
8.3.3.1
Using the Timer Module
8.3.4
Receiver Subsystem Power Path
8.3.5
Transmit Section
8.3.5.1
Transmitter Power Path
8.3.5.2
LED Power Reduction During Periods of Inactivity
8.4
Device Functional Modes
8.4.1
ADC Operation and Averaging Module
8.4.1.1
Operation Without Averaging
8.4.1.2
Operation With Averaging
8.4.2
AFE Analog Output Mode (ADC Bypass Mode)
8.4.3
Diagnostics
8.4.3.1
Photodiode-Side Fault Detection
8.4.3.2
Transmitter-Side Fault Detection
8.4.3.3
Diagnostics Module
8.5
Programming
8.5.1
Serial Programming Interface
8.5.2
Reading and Writing Data
8.5.2.1
Writing Data
8.5.2.2
Reading Data
8.5.2.3
Multiple Data Reads and Writes
8.5.2.4
Register Initialization
8.5.2.5
AFE SPI Interface Design Considerations
8.6
Register Maps
8.6.1
AFE Register Description
9
Applications and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curve
10
Power-Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
文档支持
12.1.1
相关文档
12.2
商标
12.3
静电放电警告
12.4
术语表
13
机械封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RHA|40
MPQF135D
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsat7h_oa
zhcsat7h_pm
5 Device Comparison Table
PRODUCT
PACKAGE-LEAD
LED DRIVE CONFIGURATION
LED DRIVE CURRENT
(mA, max)
Tx POWER SUPPLY (V)
OPERATING TEMPERATURE RANGE
AFE4490
VQFN-40
Bridge, push-pull
50, 75, 100, 150, and 200
3 to 5.25
–40°C to 85°C
AFE4400
VQFN-40
Bridge, push-pull
50
3 to 5.25
0°C to 70°C
AFE4403
WCSP-36
Bridge, push-pull
100
3 to 5.25
–20°C to 70°C
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