SBAS601H
December 2012 – July 2014
AFE4400
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Device Family Options
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
7.7
Timing Requirements: Supply Ramp and Power-Down
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 and Second Stage Gain Block
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
8.4.2
Diagnostics
8.4.2.1
Photodiode-Side Fault Detection
8.4.2.2
Transmitter-Side Fault Detection
8.4.2.3
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 Map
8.6.2
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
Device and Documentation Support
12.1
Trademarks
12.2
Electrostatic Discharge Caution
12.3
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RHA|40
MPQF135D
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbas601h_oa
sbas601h_pm
5 Device Family Options
PRODUCT
PACKAGE-LEAD
LED DRIVE CONFIGURATION
LED DRIVE CURRENT
(mA, max)
Tx POWER SUPPLY
(V)
OPERATING TEMPERATURE RANGE
AFE4400
VQFN-40
Bridge, push-pull
50
3 to 5.25
0°C to 70°C
AFE4490
VQFN-40
Bridge, push-pull
50, 75, 100,
150, and 200
3 to 5.25
–40°C to 85°C
AFE4403
DSBGA-36
Bridge, push-pull
25, 50, 75, and 100
3 to 5.25
–20°C to 70°C