KSZ8721BA4

Product Overview

• Category: Ethernet Physical Layer Transceiver
• Use: The KSZ8721BA4 is used for Ethernet communication in various applications such as industrial automation, automotive, and consumer electronics.
• Characteristics: It provides a robust and reliable Ethernet connection with high-speed data transmission capabilities. The transceiver is designed to operate in harsh environments and can withstand temperature variations and electrical noise.
• Package: The KSZ8721BA4 comes in a small form factor package, making it suitable for space-constrained designs.
• Essence: The essence of the KSZ8721BA4 lies in its ability to provide a seamless and efficient Ethernet communication interface.
• Packaging/Quantity: The transceiver is available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Interface: MII (Media Independent Interface)
• Data Rate: 10/100 Mbps
• Operating Voltage: 3.3V
• Temperature Range: -40°C to +85°C
• Power Consumption: Low power consumption for energy-efficient operation
• EMI: Compliant with FCC Class B and EN55022 Class B standards

Detailed Pin Configuration

The KSZ8721BA4 has the following pin configuration:

1. TXD0+
2. TXD0-
3. TX_EN
4. RXD0+
5. RXD0-
6. CRS_DV
7. MDIO
8. MDC
9. RX_ER
10. REF_CLK
11. TX_CLK
12. TX_ER
13. RX_CLK
14. VDD33
15. GND
16. VDD18
17. VDDA
18. VDDIO
19. VDDPLL
20. GND

Functional Features

• Auto-Negotiation: The transceiver supports auto-negotiation, allowing it to automatically detect and configure the best possible connection speed and duplex mode.
• LinkMD® Cable Diagnostics: It features LinkMD® cable diagnostics, which enables the detection and reporting of cable faults, helping to troubleshoot network connectivity issues.
• Energy-Efficient Ethernet (EEE): The KSZ8721BA4 supports EEE, a power-saving feature that reduces energy consumption during periods of low network activity.
• Wake-on-LAN (WoL): It supports Wake-on-LAN functionality, allowing remote devices to wake up the system from a sleep state.

Advantages and Disadvantages

Advantages: - Robust and reliable Ethernet communication - High-speed data transmission - Suitable for harsh environments - Small form factor package - Energy-efficient operation

Disadvantages: - Limited to 10/100 Mbps data rate

Working Principles

The KSZ8721BA4 operates by converting digital data into analog signals suitable for transmission over Ethernet cables. It uses advanced signal processing techniques to ensure reliable data transfer and minimize errors. The transceiver also incorporates various protocols and algorithms to handle different network conditions and optimize performance.

Detailed Application Field Plans

The KSZ8721BA4 is widely used in the following application fields:

1. Industrial Automation: Enables Ethernet connectivity in industrial control systems, facilitating real-time monitoring and control of machinery and processes.
2. Automotive: Provides Ethernet communication capabilities in automotive applications, such as in-vehicle networking and infotainment systems.
3. Consumer Electronics: Used in consumer electronic devices that require Ethernet connectivity, including smart TVs, gaming consoles, and home automation systems.

Detailed and Complete Alternative Models

1. KSZ8081MNX: Similar to the KSZ8721BA4, it is an Ethernet Physical Layer Transceiver with MII interface and 10/100 Mbps data rate. It offers additional features such as integrated termination resistors and enhanced ESD protection.
2. KSZ8863RLL: A multi-port Ethernet switch with integrated PHYs, suitable for applications requiring multiple Ethernet connections. It supports various interfaces and provides advanced features like VLAN and QoS.

(Note: The above alternative models are just examples and not an exhaustive list.)

This encyclopedia entry provides a comprehensive overview of the KSZ8721BA4 Ethernet Physical Layer Transceiver. It covers its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.