iWave Systems introduces Wi-Fi 6 (802.11 ax) enabled i.MX 8 System on Modules and Single Board Computers

Targeting connected industrial, medical, and automotive applications, iWave adds to its strong portfolio: i.MX 8 System on Modules with Wi-Fi 6.  With the continuous advancement of wireless technologies, Wi-Fi 6 (802.11 ax) brings performance improvement with increased spatial and spectral performance in high-density environments. Wi-Fi 6 is designed to improve speed, increase efficiency with increased throughput by 4 times in a crowded environment, when compared to Wi-Fi 5.

The System on Module (SOM) approach is now the preferred model of product design with the SOM market exptected to reach USD 2.3 billion by 2025 with a CAGR of 11% in the period 2020 – 2026. With W-Fi 6 integrated on the SOM, it becomes easier for designers to design carrier cards and end products, shortening development time with reduced risk and complexity. iWave Systems takes the responsibility of product longevity while maintaining end of life for the hundreds of components on the module.

Integrated with the u-Blox JODY-W3, the System on Module provisions for Wi-Fi 6 and Bluetooth 5.1 connectivity options. iWave provides for a feature rich BSP support on the series of system on modules with the options of LINUX, ANDROID, UBUNTU and QNX. Available in SMARC 2.0, SMARC 2.1 and Qseven form factors, end customers have the options to choose based on the end requirement and the interfaces required. SMARC system on modules fin a fit in multi-media applications, Qseven in industrial applications and SBC for customers who want to focus on software development.

Technology Advancements of Wi-Fi 6

Wi-Fi 6 drives performance with 2 key technologies: MU-MIMO and OFDMA.

MU-MIMO (Multi-User, Multiple Input, Multiple Output) allows the hub/router to communicate with multiple devices simultaneously. OFDMA allows one transmission to communicate with multiple devices simultaneously, where a single channel is divided into a larger number of sub-channels. This allows for increased efficiency in both uploads and downloads.

Wi-Fi 6 also brings in improved battery life through a feature “Target Wake Time” (TWT). TWT allows for the devices to negotiate and decide when and how often they will wake up to receive and send data. This increases the device sleep time, thereby increasing the battery life.

Why Wi-Fi 6 with i.MX 8

The NXP i.MX 8 family of application processors aim to revolutionise multiple display automotive applications, vision, HMI and industrial systems. The i.MX 8 QuadMax/QuadPlus SoC integrates heterogeneous multicore 64-bit Arm® Cortex®-A72, Cortex-A53 & Dual Cortex-M4F Cores with an array of features like Dual GPU systems, 4K H.265 capable VPU targeted for applications that demand advanced real-time processing, multi-media performance as well as in applications that requires simultaneous multi-OS operations.

With the support for extensive industrial interfaces such as CAN, PCIe, USB 3.0 and SATA, i.MX 8 can be a perfect for industrial applications. With an integrated SECO Module with a dedicated HSM in the processor, i.MX 8 enables sophisticated security features such as Secure Boot, Secure storage, Wi-Fi Security and OPTEE. State of the art safety and secure software execution is mandatory in industrial and automotive connected products, where devices are prone to attacks.

Wi-Fi 6: Industrial, Automotive and Smart Home Applications

Wi-Fi 6 enables a new wireless era, solving challenges faced with previous wireless infrastructure, while laying the foundational capability to new use cases in the industrial, automotive, and smart city vertical markets.

In industrial environments, where intelligence is moving towards the edge and an increased number of sensors and connected devices in a dense environment, Wi-Fi 6 can help in providing a much more efficient connected infrastructure for wireless sensor data collection. In Industry 4.0 solutions, there is now a need for wireless 4K Video streaming and audio processing at the edge, there is a need for more reliable and robust

Connected mobility and automotive IoT solutions are evolving by day, with now a need for cars to talk to each other while also communicating to external infrastructure such as traffic signals and pedestrians. With emerging radio technologies such as C-V2X and DSRC, cars need efficient connectivity to download updates for various ECU and gateways at regular intervals. Wi-Fi 6 can help provide an efficient path for OTA through the Wi-Fi 6 network in houses, when the car is parked. With car manufacturers now looking at user experience and automotive infotainment to build customer loyalty, Wi-Fi 6 can help transform connectivity within cars for such applications.

You can view the performance of 4K video streaming over Wi-Fi 6

Through the extensive feature rich ready to use development kits, customers can now build quick prototypes to evaluate product market fit and evaluate performance. With our system on modules portfolio, iWave is driven by the mission to be a reliable technology partner in their product journey and ensure the best of products and extensive technical support.

You can find more information on our Embedded Computing platforms here.

High Voltage DC Power Supply for Intelligent Power Modules

Although this power supply design is specific to the Intelligent Power Modules (IPM), the concepts and circuit design may be used for any power supply that requires high voltage output up to 400V DC and 6 A. It is an unregulated power supply, DC output is dependent on AC input.  The circuitry includes a passive EMI filter consisting of elements C5, C6, C7, C8, C9, C10, T1, and a BR1 25 A/600V rectifier block, R3 NTC for inrush current protection, and a relay RL1 for soft powering up and reducing conduction losses in steady-state operation. 2 x electrolytic capacitors C3, C4 are used for buffering the rectified DC bus voltage. It is advisable to use a heatsink on the bridge rectifier. Inrush current circuit requires 12-15V DC @ 50mA power supply. Choose appropriate fuse as per current requirement.

Safety precautions

The board operates at lethal voltages and has bulk capacitors that store significant charge. Accidental contact can lead to lab equipment damage, personnel injury, and may be fatal. Please be exceptionally careful when probing and handling this board. Always observe normal laboratory precautions.

Features

  • Nominal Input Voltage 220V-240V AC
  • Output 330V DC (Approx.)
  • Output Current Continued 3A (Maximum 6 A)
  • On Board EMI Filter
  • On Board NTC for inrush Current
  • On Board Relay for soft powering up and reducing Power Losses
  • On Board Fuse for Short Circuit/Over Current Protection
  • Screw Terminals for Easy Connections
  • PCB dimensions: 98.50 x 85.88 mm

Schematic

Parts List

NO.QNTY.REF.DESCMANUFACTURERSUPPLIERSUPPLIER PART NO
11BR1BRIDGE DFB2560 ON SEMIDIGIKEYDFB2560-ND
21CN14 PIN MALE HEADER 2.54MM PITCHWURTHDIGIKEY732-5317-ND
32CN2,CN33 X 2 PIN BARRIER STRIPTE CONNECTIVITYDIGIKEYA113421-ND
41C110uF/25VNICHICONDIGIKEY493-17428-3-ND
51C24.7uF/25VNICHICONDIGIKEY493-11353-3-ND
62C3,C4470uF/450VNICHICONDIGIKEY493-3239-ND
72C5,C60.47uF/275V X 2KEMETDIGIKEY399-12744-ND
84C7,C8,C9,C101KPF/2KVTDKDIGIKEY445-175190-3-ND
92D1,D21N4007SMC DIODEDIGIKEY1655-1N4007FLTR-ND
101F1FUSE HOLDERWURTHDIGIKEY732-11376-ND
111F1FUSE HOLDER CLIP COVERWURTHDIGIKEY732-11379-ND
121F1FUSEWURTHDIGIKEY507-1270-ND
131Q1BC847ALNEXPERIADIGIKEY1727-2924-2-ND
141RL1RelayTE CONNECTIVITYDIGIKEYPB2531-ND
151R110K 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
161R22K2 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
171R3NTC5D/20AMTHERMDIGIKEY570-1268-ND
181R4330K 5% 3WTE CONNECTIVITYDIGIKEYA131571CT-ND
191R5DNPOMIT
201T1TXWURTHDIGIKEY732-1449-ND

Connections

Gerber View

Photos

Video

DFB2560 Datasheet

Rock Pi 4 Plus SBC Features Rockchip OP1 Processor and eMMC Storage with Twister OS Armbian

Rock Pi 4 Plus

Radxa launched the Rock Pi 4 Plus series of single-board computers with the Rockchip OP1 Processor, as an alternative to the Raspberry Pi. The new Rock Pi 4 Plus has been upgraded to a Rockchip OP1 processor, a powerful hexa-core ARM-based RK3399 SoC. Hence, it should be 11% faster than its predecessors. Additionally, the SBC delivers class-leading performance while leveraging excellent mechanical compatibility, making it a good choice for IoT enthusiasts and hobbyists.

The onboard RK3399 SoC packs a quad-core 1.4GHz Cortex-A53 with a dual-core 2GHz Cortex-A72 along with a Mali T860MP4 graphic processing unit (GPU). This high-performance SoC is used in ASUS Tinker Board 2. The Plus version additionally has onboard eMMC storage and comes pre-loaded with the Armbian-based Twister OS.

The new Rock Pi 4 Plus features Gigabit Ethernet (GbE) with PoE support (additional HAT is necessary). The board is equipped with two-lane MIPI-DSI and -CSI interfaces and a 4K-ready HDMI 2.0 port for display interface. With the small form factor of 85 x 54 mm, the SBC comes with a rich set of physical connectivity through 40-pin GPIOs, and a pair each of USB 3.0 and 2.0 ports.

Interface Description of Rock Pi 4 Plus

Interface Description of Rock Pi 4 Plus

Furthermore, instead of depending on an optional eMMC module, the board includes 16 to 128 GB of eMMC memory. It also offers a microSD card slot and an M.2 socket with support for the NVMe SSD storage. Additionally, the company also packs an audio jack with a mic and a real-time clock(RTC). It also comes with a USB Type-C port for charging.

Radxa offers two versions of Rock Pi 4 Plus— Model A and Model B, both featuring the same SoC and most of the same hardware. However, the 4A+ and 4B+ are similar to the previous Rock Pi 4A and 4B. But it comes with the exception that the 4B+ SBC includes built-in WiFi and Bluetooth. Hence, the Rock Pi 4B+ is the perfect choice for personal or commercial applications.

According to the post by Linux Gizmos, Radxa intends to sell the Rock Pi 4 Plus in four variations as follows:

  • Model A — 2GB LPDDR4 + 16GB eMMC — $49
  • Model A — 4GB LPDDR4 + 32GB eMMC — $65
  • Model B — 2GB LPDDR4 + 16GB eMMC — $59
  • Model B — 4GB LPDDR4 + 32GB eMMC — $75

Talking about the software ecosystem, the new Rock Pi 4 Plus board comes pre-loaded with Twister OS Armbian. It is a fast and lightweight desktop operating system based on Armbian Focal 20.04.1 LTS for RK3399-based SBCs. Additionally, Twister OS strongly recommends using an RK3399-based SBC with 4 GB of RAM and 16 GB of microSD/eMMC storage. According to Radxa, the Armbian-based Twister OS “brings recent Linux kernel, supports HW decoding and 2D/3D GPU acceleration to the Rock Pi Plus.”

Currently, only Rock Pi 4B+ with 4GB RAM, 32GB of eMMC flash, and WiFi/Bluetooth is available for $95 on Amazon. For more information visit Radxa’s Rock Pi community website.

Meet the Photoacoustic Sensing Based SCD41 CO2 Sensor; The Latest Addition to Sparkfun’s QWiiC Ecosystem

Sparkfun’s QWiiC ecosystem comprises of I2C based components which through 4-pin JST connectors can be quickly interfaced with development boards. The product line, which already features over 1800 products including, sensors, actuators, and QWiiC enabled development boards, keeps growing daily and the latest addition to the ecosystem is the QWiiC Sparkfun CO₂ Humidity and Temperature Sensor.

Essentially a breakout board for the highly accurate, miniature, and Photoacoustic sensing-based SCD41 CO₂ sensor from Sensirion, the Sparkfun’s SCD41(QWIIC) CO₂ Humidity and Temperature Sensor possesses the capacity to detect CO2 over a large output range from 0 to 40000 ppm with higher accuracy over 400-5000 ppm ±(40ppm+5%) range, with accuracy further improved by the On-chip signal compensation realized via the built-in SHT4x humidity and temperature sensor.

CO2 is a key indicator for indoor air quality with high levels noted to have the capacity to compromise humans’ cognitive low power, as such the SCD41 QWIIC sensor brings to makers the ability to develop rapid prototypes and solutions leveraging the quick, and easy to use Sparkfun’s QWIIC sensor interface.

Some of the highlight features of the SCD41 sensor which are made available to users via the QWIIC module includes:

  • Photoacoustic sensor technology PASens®
  • Large output range: 0 ppm – 40’000 ppm
  • Large supply voltage range: 2.4 – 5.5 V
  • High accuracy: ±(40 ppm + 5 %)
  • Digital I2C interface
  • Integrated temperature and humidity sensor
  • Low power operation down to < 0.4 mA avg. @ 5 V, 1 meas. / 5 minutes

So users can get up and running with the new sensor in no time, Sparkfun, as with all its products, has released an Arduino library to make reading the CO₂, humidity, and temperature from the sensor super easy. The library can be installed through the Arduino Library manager by searching for ‘SparkFun SCD4x’.

While there is no information on stock availability on Sparkfun’s website, the sensor is currently available for sale on the website for $59.95 without shipping. Quite Pricey? I agree but asides from the quality and solid performance of Sensirion’s SCD41 sensor, which is most certainly a major contributor to the cost, the SCD41 (QWIIC) CO₂ Humidity and Temperature Sensor was developed by Sparkfun as a SparkX product which means it was not produced in large quantity, and this may have affected the cost, and will definitely also affect availability, at least for the time being.

Sparkfun’s SparkX products are experimental products, rapidly produced in SparkFun’s lab to provide access to products based on recent technology breakthroughs to makers, as fast as possible. While the products are usually tested, they don’t exactly go through nearly as much rigorous testing and verification that the regular SparkFun products go through, due to the rapid nature of their development. As such, SparkFun usually offers no guarantees, support or beginners guide for products in this category, as some of them, at the end of the day, don’t make it to the regular products category. This means limited supply, and probably not the best set of components to use for the development of your new product with a million unit sales plan.

However, Like all Sparkfun’s projects, the SCD41(QWIIC) CO₂ Humidity and Temperature Sensor is open-source hardware, as such, all the designs and test files are fully open-source and available on the project’s GitHub page, which you can easily build your own version of the sensor and not worry about availability.

More information on the new sensor, features, and specifications, is available on the product’s page on Sparkfun’s website.

Sparkfun’s MicroMod Family Adds the Teensy 4.0 board with an M.2 Connector

Sparkfun launched the MicroMod Interface Ecosystem, a modular ecosystem of interchangeable processors and specialized carrier boards, in late 2020, to provide users with a solder-free rapid prototyping platform aimed at making the transition from prototypes to products easier and faster. The ecosystem has experienced tremendous success with new MicroMod Processor Boards, offering plug and play capability for different processors and MCUs released every now and then. The latest addition to the family is the Sparkfun MicroMod Teensy Processor.

Developed in partnership with PJRC, which owns the Teensy Trademark, the Sparkfun MicroMod Teensy processor, brings the awesome computing power of the NXP iMXRT1062 processor, which we’ve all come to love from the experience with the Teensy 4.0, to the Sparkfun’s Micromod family.

Thanks to the NXP iMXRT1062, the Sparkfun MicroMod Teensy Processor features an ARM Cortex-M7 processor operating at clock speeds up to 600MHz, with 16MB Flash Memory, and 1024K of RAM Memory. To allow full utilization of the huge processing power,  the MicroMod Teensy Processor board comes with a total of seven serial UART ports, four I2C buses, two SPI ports, CAN-Bus, 12 GPIO, dedicated digital, analog, and PWM pins, digital audio, and USB Host and Device capability at speeds of up to 480Mbit/s.

Feeling like you’d need more? well, one of the many great things about the iMXRT1062 is that many of its pins support multiple signal types, so you can customize them to meet the needs of your project.

The highlight features and specifications of the Sparkfun MicroMod Teensy Processor are provided below:

  • USB Device up to 480Mbit/sec: Capable of enumerating as a USB keyboard, mouse, joystick, MIDI, audio, and more
  • USB Host up to 480Mbit/sec: Capable of interfacing to USB flash drives, mice, keyboards, and more
  • 7x Serial Ports
  • 2x SPI
  • 4x I2C Bus
  • 1x CAN-Bus
  • 1x I2S Digital Audio
  • 1x SDIO for SD
  • 2x Dedicated Analog Pins (Up to 14 available for use)
  • 2x Dedicated PWM Pins (Up to 22 available for use)

Thanks to the M.2 MicroMod connector, users can either choose to use one of the several Sparkfun MicroMod Carrier Boards in the MicroMod ecosystem for their project or design their own carrier board by modifying open-source MicroMod carrier board designs available on SparkFun’s GitHub page.

As tradition with Sparkfun, the MicroMod Teensy Processor is fully open source, and users interested in the design can find the board’s designs and documentation on the project’s GitHub page here. However, for those who are interested in buying, the coin-sized, Teensy processor is available on Sparkfun for $19.95, without shipping.

More information on the Teensy processor, along with usage, and design guides, can be found on the product’s page on Sparkfun’s Website. 

Getting Started with Espressif’s ESP32-C3-DevKITM-1 on Arduino IDE

ESP32-C3-DevKITM-1 on Arduino IDE

Espressif Systems ESP32-C3-DevKit M-1 is an extremely powerful board for your IoT applications. Driven by the ESP32-C3FN4 chip, this low-power, low-cost, Wifi-Bluetooth-enabled board has its own unique place in the ESP32 board line-up.

You can program your ESP32-C3-DevKITM-1 module in four ways:

  • ESP-IDF
  • Arduino IDE
  • Eclipse Plugin
  • VS Code Extension

Interfacing the ESP32-C3-DevKITM-1 on Arduino IDE provides us with the flexibility, compatibility, and reliability of a much simpler and easy-to-use UI also boosting the programming speed. In this article, we focus on the programming of ESP32-C3 with Arduino IDE.

Getting Started with Arduino IDE

Arduino IDE being highly popular and convenient to most programmers also has support for ESP boards. For that, you need to add the board’s Github repository to the IDE which can be found here.

For the ESP32-C3-DevKITM-1 board, you need to use the development release link:

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json

First, make sure that you have the latest version of the Arduino IDE installed on your computer. Here are the steps to interface ESP32-C3-DevKITM-1 on Arduino IDE.

Step1: In your Arduino IDE window, go to File menu -> Preferences

Preferences Menu on Arduino IDE

Step2: Once the preferences menu is open, Enter https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json in the Additional Boards Manager URLs field and hit OK.

Additional Boards Manager

Step3: Now go to the Boards Manager from the Tools menu.

Boards Manager on Arduino IDE

Step4: In the Boards Manager, search esp32 by Espressif Systems. Install the latest 2.0.0 version.

Installing Latest 2.0.0 Version

Now, once the installation is complete, you can see the ESP32C3 Dev Module in the boards’ section of the Tools menu. Select it.

ESP32C3 Dev Module

Now, under the File menu, in the examples section, you can see some inbuilt examples.

Port For the Development Board

Select a proper port for your board with preferred settings. The port number of the board can be found using Device Manager on your PC.

Port COM4 for ESP32-C3-DevKITM-1

Here, we executed an ESP32-> Time-> SimpleTime example which connects your board to a WiFi network to obtain and display the current date and time on the serial monitor. Enter your network’s SSID and password in the code. Just compile the sketch and then upload it to the board. Also, open the Arduino IDE’s Serial Monitor at a baud rate of 115200 to view the result.

Serial Monitor of ESP32-C3-DevKITM-1

Before uploading, put the ESP32C3 board in programming mode by long-pressing the boot button and simultaneously pressing the reset button once, and then releasing the boot button.

You can now build your own ESP32 C3 projects on Arduino IDE.

SK hynix Starts Mass Production of 1anm DRAM Using EUV Equipment

SK hynix Inc. announced that it has started this month mass production of the 8 Gigabit (Gb) *LPDDR4 mobile DRAM based on the 1anm, which is the fourth generation of the 10nm process technology.

* LPDDR4 (Low Power Double Data Rate 4): Low power DRAM for mobile devices. DDR refers to DRAM with the specifications that JEDEC standardized and the generation has advanced from one to four.

As the semiconductor industry classifies the 10nm DRAM products, naming them after the alphabets, the 1a technology is the fourth generation, following the first three generations of the 1x, 1y, and 1z. SK hynix plans to provide the latest mobile DRAM products to smartphone manufacturers from the second half of 2021.

This is the first time that SK hynix adopted the *EUV equipment for mass production after proving the stability of the cutting edge lithography technology through partial adoption for its 1ynm DRAM production.

* EUV (Extreme Ultraviolet): lithography technology that uses extreme ultraviolet

As technology migration continues to ultra-micro levels, an increasing number of semiconductor companies are adopting the EUV equipment for the photo process where circuit patterns are drawn on the wafer surfaces. Industry experts believe that a semiconductor company’s leadership in technology will depend on how it can fully take advantage of the EUV equipment. SK hynix plans to use the EUV technology for production of all its 1anm DRAM products going forward as it has proved the stability of the process.

SK hynix expects the new technology to bring an improvement in productivity, and further boost cost competitiveness. The company expects the 1anm technology to lead to a 25% increase in the number of DRAM chips produced from the same size of a wafer, compared with the previous 1znm node. SK hynix anticipates that the 1anm DRAM will also likely help alleviate the supply and demand conditions of the global markets following an increase in DRAM demand globally.

The new product stably runs 4266Mbps, the fastest transfer rate in a standard LPDDR4 mobile DRAM specification, and has reduced power consumption by 20%. It is a meaningful accomplishment for SK hynix as it aims to reduce carbon dioxide emission as part of its commitment to the environmental, social and governance (ESG) management.

SK hynix will apply its 1anm technology to its DDR5 products, the world’s first next-generation DRAM launched in October 2020, from early next year.

Cho Youngmann, Vice President at SK hynix, said that

“With improved productivity and cost competitiveness, the latest 1anm DRAM will not only help secure high profitability, but also solidify SK hynix’s status as a leading technology company with early adoption of the EUV lithography technology for mass production.”

more information: www.skhynix.com

Renesas IPS2200 inductive position sensor IC is capable of providing the absolute rotor position

The IPS2200 is an industrial qualified, inductive position sensor IC capable of providing the absolute rotor position as sine and cosine

The IPS2200 is an industrial qualified, inductive position sensor IC capable of providing the absolute rotor position as sine and cosine. This IC uses the physical principle of Eddy currents to detect the position of a simple metallic target moving above a set of coils, consisting of one TX and two RX. The IPS2200 can be used for high-speed motor commutation up to 250krpm electrical, in industrial, medical, robotic, and consumer applications. Stray filed immunity, lower weight, smaller size, and substantial BOM optimization, make the IPS2200 an ideal alternative for resolver replacement.

Key features

  • Design flexibility: through-shaft, side-shaft and end of the shaft variants are possible
  • High accuracy: customizable sensor pattern design to match the number of motor pole pairs
  • No tight mechanical tolerances: stable performance over all mechanical displacements
  • Temperature range: -40 °C to 125 °C ambient and voltage supply: 3.3 V ±10% or 5.0 V ±10%

Additional features

  • Interface: Sin/Cos single-ended or differential
  • Qualified for the industrial market
  • Temperature range: -40 °C to 125 °C ambient
  • Voltage supply: 3.3 V ±10% or 5.0 V ±10%
  • Rotational speed: up to 250.000 RPM (electrical)
  • Propagation delay: programmable, less than 10 µs
  • Sin/Cos gain mismatch and offset compensation
  • Overvoltage, reverse polarity, short-circuit protected
  • Digital programming interface: I²C or SPI
  • AB incremental pulse outputs
  • 16-TSSOP package

more information: https://www.renesas.com/us/en/products/sensor-products/position-sensors/ips2200-inductive-position-sensor-high-speed-motor-commutation

ON Semiconductor NCP1342 is a highly integrated quasi-resonant flyback controller

The NCP1342 is a highly integrated quasi-resonant flyback controller suitable for designing high-performance off-line power converters

The NCP1342 is a highly integrated quasi-resonant flyback controller suitable for designing high-performance off-line power converters. The integrated X2 capacitor-discharge feature enables the NCP1342 to achieve no-load power consumption below 30 mW.

The controller features proprietary valley-lockout circuitry, ensuring stable valley switching, and includes key protection features for AC-DC power supply applications.

Key features

  • QR frequency jittering for optimized EMI behavior
  • Quiet-Skip technology to ensure operation outside the audible range
  • Frequency foldback with 25 kHz min frequency clamp for the highest light load efficiency
  • Integrated HV Startup with brownout protection

Additional features

  • Valley switching operation with valley lockout
  • Integrated X2 capacitor-discharge capability
  • NTC-compatible fault pin
  • High drive capability: -500 mA/+800 mA
  • Latch input for OVP and OTP implementation

Applications

  • Medium or high power AC-DC adapters
  • Ultra-high-density AC-DC adapters
  • Low/medium power USB PD adapters
  • Notebook computer adapters

more information: https://www.onsemi.com/ncp1342

Qorvo QPL1818 75Ω CATV Amplifier featuring 15dB of gain

Qorvo QPL1818 75Ω CATV Amplifier is a GaAs (Gallium Arsenide) pHEMT (Pseudomorphic High-Electron-Mobility Transistor) single-ended MMIC RF amplifier featuring 15dB of gain. The QPL1818 offers a 50MHz to 1800MHz frequency range providing an ideal solution for a wide range of  DOCSIS 4.0 amplifiers and nodes as well as home gateways and cable modems.

The Qorvo QPL1818 75Ω CATV Amplifier is Available in a compact 3.0mm x 3.0mm QFN16 package well-suited for space-constrained designs.

Features

  • 50MHz to 1800MHz frequency range
  • 5V single power supply
  • 100mA typical current
  • 15dB gain (typical)
  • 2dB noise figure (typical)
  • MER <42dB @ 55dBmV TCP
  • Adjustable bias using external resistors
  • 3.0mm x 3.0mm QFN16 package
  • -40°C to +100°C operating temperature range
  • Lead-free, halogen-free, and RoHS compliant

more information: https://www.qorvo.com/products/p/QPL1818 </a

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