This document describes the CN7221 Home Networking Physical Layer (PHY) with Integrated Analog Front End (AFE). It includes device pinouts, signal descriptions, and timing diagrams. The CN7221 allows home networks to operate over common telephone wires at 1 Mbps. The CN7221 simplifies system designs and improves their reliability by eliminating the need for a separate AFE comprised of discrete components.

FEATUREs
• Supports the HomePNA 1.0 specification for a home phoneline network
• 1 Mbps data rate
• Integrated Analog Front End
• Configurable transmit power level; high- and low-power
• Configurable transmit data rate; low- and high-speed
• 32-pin TQFP package

HomePNA 1.0 Specification
Features
• Meets HomePNA certification test requirements
• Uses existing phonelines, no new wires required
• Compatible with existing services
    – Internet access, voice services, and home network coexist on the same wire
• Robust protocol assures performance over poor wiring infrastructure
• FCC Part 15- and Part 68-compliant