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Telecommunications

The world is becoming an increasingly interconnected place, and telecommunications products and systems help to enable this connectivity. The smartphones that are replacing PCs, laptops, cameras, and even GPS systems are crammed with electronic components for voice communications, texting, email, web browsing, social media interaction, navigation, and imaging. Supporting are these functions are the earthbound, airborne, and underwater systems that comprise the telecommunications infrastructure: base stations, transmission towers, satellites, submarine communications cables, modems, line cards, and more, all of which require electronic components.
Telecommunications

xDSL ModemRouter

Vishay Components Used

  • Power IC Controllers
  • Power MOSFETS
  • Switching Diodes
  • Schottky Diodes
  • Capacitors
  • Visible LEDS
  • Inductors/EMI Filters
  • Transient/Overvoltage Protection Devices
  • ESD Protection Devices
  • LDOs
EMI-Filter Reverse Polarity Protection SMPS Buck Converter Transient Protection ESD-Protection Filter Pull-Up / Down Resistor Position Sensor DC Link Current Sensor EMI-Filter Low Side Current Sensor Motor Switch Reverse Polarity Protection Transient Protection Position Sensor Temperature Sensor
EMI Filter Reverse Polarity Protection Security Switch Transient Protection SMPS Buck Converter EMI Filter Reverse Polarity Protection Security Switch Transient Protection Buffer Capacitor High Side Current Sensor High Side Switch Low Side Current Sensor Low Side Switch Storage Inductor
EMI Filter Reverse Polarity Protection Transient Protection SMPS Converter Low and High Side Switch High Side Switch Low Side Switch Buffer Capacitor Storage Inductor High Side Current Sensor LED Light Sensor Current Sensor
Circuit Protection Filter EMI-Filter Sensor System SMPS Buck Converter DC-Link Capacitor Driver Driver Driver Full Bridge Temperature Sensor Current Sensor
SMPS Converter EMI Filter Reverse Polarity Protection Transient Protection Filter ESD-Protection Pull-Up / Down Resistor Level Shift Motor Switch DC Link Current Sensor Low Side Current Sensor EMI Filter Reverse Polarity Protection Transient Protection BLDC-Motor WiFi GPS Receiver Proximity Sensor
SMPS Converter EMI Filter Reverse Polarity Protection Transient Protection ESD-Protection Filter Pull-Up / Down Resistor Buck Boost Converter EMI Filter Reverse Polarity Protection Transient Protection RGBW Sensor Blue Light Sensor Position Sensor Current Sensor
SMPS Buck Converter Reverse Polarity Protection Transient Protection Optical Smoke Detection Temperature Sensing Amplification ESD Protection Audio Amplifier Flashlight Wireless Ethernet
DC/DC Diodes MOS Switch Reverse Polarity Protection Storage Inductor Transient Protection Balancing Resistor Balancing Switch CAN ESD Protection Temperature Sensor Voltage Detection Zener/TVS Protection Temperature Sensor Temperature Sensor Shunt Resistor CAN ESD Protection High Voltage Detection Load Dump TVS Temperature Sensor
EMI Filter Overvoltage Protection Reverse Polarity Protection Inductor Voltage Divider Decoupling/Bootstrap Buffer Capacitor Supercapacitor Inductor Schottky Diode Transistor Voltage Divider Decoupling Gate Driver
Security Switch EMI Filter Reverse Polarity Protection Transient Protection

xDSL Modem/Router Design is separated into two segments: Power and Peripheral. The Power Segment involves supplying hardware device power sources. The first step is to convert the working voltage to a usable range and stability by applying switching mode dc-to-dc Buck Converters with high efficiency and high current capability. Another voltage conversion is done for the the key power sources such as CPUs and DSPs. For the I/O parts and Memory Power, Low-Dropout Regulators or Linear Regulation is generally used as a solution because of their lower prices and simple circuitry. The Peripheral Segment can be regarded as a low-power segment. It includes USB Ports, External Connections, Wireless Transmission such as WLAN, and Control Lights. Some of these need similar functions such as ESD protection, current limiting, or load switching.