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KS8721SLA4-TR

KS8721SLA4-TR

Product Overview

Category

The KS8721SLA4-TR belongs to the category of Ethernet Physical Layer Transceivers.

Use

This transceiver is primarily used for Ethernet communication, enabling the transmission and reception of data over a network.

Characteristics

  • Supports various Ethernet standards such as 10BASE-T, 100BASE-TX, and 1000BASE-T.
  • Provides reliable and high-speed data transmission.
  • Low power consumption for energy efficiency.
  • Compact package size for easy integration into electronic devices.

Package

The KS8721SLA4-TR is available in a small form-factor package, allowing for space-saving designs in electronic systems.

Essence

The essence of the KS8721SLA4-TR lies in its ability to facilitate Ethernet communication by converting digital signals into analog signals suitable for transmission over a network.

Packaging/Quantity

This transceiver is typically packaged in reels or trays, with a quantity of around 2500 units per reel.

Specifications

  • Operating Voltage: 3.3V
  • Data Rate: 10 Mbps, 100 Mbps, 1000 Mbps
  • Interface: MII (Media Independent Interface)
  • Temperature Range: -40°C to +85°C
  • Package Type: QFN (Quad Flat No-Lead)

Detailed Pin Configuration

The KS8721SLA4-TR has the following pin configuration:

  1. TXD0+
  2. TXD0-
  3. TX_EN
  4. TX_ER
  5. GND
  6. MDIO
  7. MDC
  8. RXD0+
  9. RXD0-
  10. RX_ER
  11. CRS_DV
  12. RX_CLK
  13. VDD
  14. REFCLK
  15. VDD
  16. VDD

Functional Features

  • Auto-negotiation: The transceiver can automatically negotiate the best possible connection speed and duplex mode with the connected device.
  • LinkMD+: Provides advanced cable diagnostics and fault detection capabilities.
  • Energy-Efficient Ethernet (EEE): Supports EEE standards for reduced power consumption during periods of low network activity.
  • Loopback Modes: Allows for testing and troubleshooting by looping back transmitted signals for verification.

Advantages and Disadvantages

Advantages

  • Wide compatibility with various Ethernet standards.
  • Low power consumption for energy efficiency.
  • Compact package size for easy integration.
  • Advanced features like LinkMD+ and EEE for enhanced functionality.

Disadvantages

  • Limited temperature range (-40°C to +85°C) may not be suitable for extreme environments.
  • Requires external components for complete system integration.

Working Principles

The KS8721SLA4-TR operates by receiving digital data from a host device and converting it into analog signals suitable for transmission over an Ethernet network. It also receives analog signals from the network and converts them back into digital data for the host device to process.

Detailed Application Field Plans

The KS8721SLA4-TR is commonly used in the following application fields:

  1. Networking equipment such as switches, routers, and hubs.
  2. Industrial automation systems requiring reliable Ethernet communication.
  3. Automotive electronics for in-vehicle networking.
  4. Consumer electronics like smart TVs, gaming consoles, and set-top boxes.

Detailed and Complete Alternative Models

  1. KSZ8081RNB
  2. DP83848IVV/NOPB
  3. LAN8720AI-CP-TR
  4. RTL8201F-VB-CG

These alternative models offer similar functionality and can be considered as alternatives to the KS8721SLA4-TR based on specific requirements and design considerations.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací KS8721SLA4-TR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of KS8721SLA4-TR in technical solutions:

Q1: What is the KS8721SLA4-TR? A1: The KS8721SLA4-TR is a 10/100BASE-TX/FX Ethernet physical layer transceiver (PHY) chip.

Q2: What are the key features of the KS8721SLA4-TR? A2: The key features include support for both 10Mbps and 100Mbps Ethernet, auto-negotiation, MDI/MDIX crossover, and various power-saving modes.

Q3: How can I interface the KS8721SLA4-TR with a microcontroller or processor? A3: The KS8721SLA4-TR uses an MII (Media Independent Interface) or RMII (Reduced Media Independent Interface) interface, which can be connected to a microcontroller or processor using standard digital I/O pins.

Q4: Can the KS8721SLA4-TR be used in industrial applications? A4: Yes, the KS8721SLA4-TR is designed to operate in industrial temperature ranges and is suitable for use in industrial applications.

Q5: Does the KS8721SLA4-TR support Power over Ethernet (PoE)? A5: No, the KS8721SLA4-TR does not support Power over Ethernet. It is a PHY chip and does not provide power to connected devices.

Q6: What is the maximum cable length supported by the KS8721SLA4-TR? A6: The KS8721SLA4-TR supports cable lengths up to 100 meters for both 10Mbps and 100Mbps Ethernet.

Q7: Can the KS8721SLA4-TR be used in a multi-port switch or hub? A7: Yes, the KS8721SLA4-TR can be used in multi-port switches or hubs to provide Ethernet connectivity to multiple devices.

Q8: Does the KS8721SLA4-TR support auto-negotiation? A8: Yes, the KS8721SLA4-TR supports auto-negotiation, which allows it to automatically detect and configure the best possible connection speed and duplex mode.

Q9: Can I use the KS8721SLA4-TR with both copper and fiber optic Ethernet connections? A9: No, the KS8721SLA4-TR is specifically designed for copper Ethernet connections. For fiber optic connections, you would need a separate transceiver.

Q10: Are there any evaluation boards or reference designs available for the KS8721SLA4-TR? A10: Yes, Micrel (now Microchip) provides evaluation boards and reference designs that can help you get started with the KS8721SLA4-TR in your technical solution.

Please note that these answers are general and may vary depending on the specific requirements and implementation of the KS8721SLA4-TR in a given technical solution.