SNLS783
May 2025
DP83826AE
,
DP83826AI
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Mode Comparison Tables
5
Pin Configuration and Functions (ENHANCED Mode)
6
Pin Configuration and Functions (BASIC Mode)
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Timing Diagrams
7.8
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Auto-Negotiation (Speed/Duplex Selection)
8.3.2
Auto-MDIX Resolution
8.3.3
Energy Efficient Ethernet
8.3.3.1
EEE Overview
8.3.3.2
EEE Negotiation
8.3.4
EEE for Legacy MACs Not Supporting 802.3az
8.3.5
Wake-on-LAN Packet Detection
8.3.5.1
Magic Packet Structure
8.3.5.2
Magic Packet Example
8.3.5.3
Wake-on-LAN Configuration and Status
8.3.6
Low Power Modes
8.3.6.1
Active Sleep
8.3.6.2
IEEE Power-Down
8.3.6.3
Deep Power Down State
8.3.7
RMII Repeater Mode
8.3.8
Clock Output
8.3.9
Media Independent Interface (MII)
8.3.10
Reduced Media Independent Interface (RMII)
8.3.11
Serial Management Interface
8.3.11.1
Extended Register Space Access
8.3.11.2
Write Address Operation
8.3.11.3
Read Address Operation
8.3.11.4
Write (No Post Increment) Operation
8.3.11.5
Read (No Post Increment) Operation
8.3.11.6
Example Write Operation (No Post Increment)
8.3.12
100BASE-TX
8.3.12.1
100BASE-TX Transmitter
8.3.12.1.1
Code-Group Encoding and Injection
8.3.12.1.2
Scrambler
8.3.12.1.3
NRZ to NRZI Encoder
8.3.12.1.4
Binary to MLT-3 Converter
8.3.12.2
100BASE-TX Receiver
8.3.13
10BASE-Te
8.3.13.1
Squelch
8.3.13.2
Normal Link Pulse Detection and Generation
8.3.13.3
Jabber
8.3.13.4
Active Link Polarity Detection and Correction
8.3.14
Loopback Modes
8.3.14.1
Near-end Loopback
8.3.14.2
MII Loopback
8.3.14.3
PCS Loopback
8.3.14.4
Digital Loopback
8.3.14.5
Analog Loopback
8.3.14.6
Far-End (Reverse) Loopback
8.3.15
BIST Configurations
8.3.16
Cable Diagnostics
8.3.16.1
Time Domain Reflectometry (TDR)
8.3.17
Fast Link-Drop Functionality
8.3.18
LED and GPIO Configuration
8.4
Programming
8.4.1
Hardware Bootstraps Configuration
8.4.1.1
Bootstrap Configurations (ENHANCED Mode)
8.4.1.2
Strap Configuration (BASIC Mode)
8.5
Register Maps
8.5.1
DP83826A Registers
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
Twisted-Pair Interface (TPI) Network Circuit
9.2.2
Transformer Recommendations
9.2.3
Capacitive DC Blocking
9.2.4
Design Requirements
9.2.4.1
Clock Requirements
9.2.4.1.1
Oscillator
9.2.4.1.2
Crystal
9.2.5
Detailed Design Procedure
9.2.5.1
MII Layout Guidelines
9.2.5.2
RMII Layout Guidelines
9.2.5.3
MDI Layout Guidelines
9.2.6
Application Curves
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.1.1
Signal Traces
9.4.1.2
Return Path
9.4.1.3
Transformer Layout
9.4.1.4
Metal Pour
9.4.1.5
PCB Layer Stacking
9.4.1.5.1
Layout Example
10
Device and Documentation Support
10.1
Related Documentation
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RHB|32
MPQF130D
Thermal pad, mechanical data (Package|Pins)
RHB|32
QFND257K
Orderable Information
snls783_oa
snls783_pm
Data Sheet
DP83826Ax
Deterministic, Low-Latency, Low-Power, 10/100 Mbps, Industrial Ethernet PHY