LNB controllers for DBS
28 April 2010
Telecoms, Datacoms, Wireless, IoT
Diodes Incorporated has announced the introduction of a new family of low noise block (LNB) controllers for direct broadcast satellite (DBS) applications.
In smaller packaging and operating at lower voltages and higher levels of accuracy than previous generations, the six new devices aim to increase the efficiency and reliability of LNB designs while reducing overall size. These controllers have proven in some cases to use less than 1% of total LNB current, while their low supply voltage operation ensures an efficiency improvement when used with DC-DC converters.
Packaging is now the ultra thin QFN style, enabling a reduction in PCB size and off-board height requirement. Offering accurate and flexible control and internal filtering, the new controllers completely eliminate false switching and support a wide range of set-top box designs and specifications. The six controllers have been designed to exceed the latest DBS broadcast specifications.
The ZNBG3118 provides bias control and protection for up 3 GaAs and HEMT FET low noise amplifiers. The controller integrates an accurate voltage detector for LNB polarisation channel selection and an advanced tone detector for local oscillator selection for band switching. The ZABG4002 and ZABG6002 are low power fixed bias controllers for 4 and 6 stage FET low noise amplifiers respectively, providing each FET with an independent protected negative gate voltage and positive drain voltage with user programmable drain current selectable from 0 to 15 mA.
Offering a choice of high and standard accuracy polarisation voltage detection are the ZLNB2015 and ZLNB2016 advanced DBS dual voltage and tone detectors. Optimised for low supply current and wide operating voltage, the devices also offer excellent interference rejection while keeping application cost down. Finally, the ZLNB254 is a dual channel DiSEqC interface for LNBs and satellite distribution systems. The IC provides two highly accurate DiSEqC detectors, which convert the DiSEqC signals into logic level representations, enabling simple and reliable processor monitoring.
Further reading:
Simplifying system design
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The FGMC63N tri-band MCU Wi-Fi 6E module from Quectel addresses offers integrated connectivity across 2,4 GHz, 5 GHz, and 6 GHz bands in a compact, highly optimised design.
Read more...
Dragino’s connectivity catalogue
Otto Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
Where Wi-Fi demands frequent charging and covers tens of meters, and traditional cellular consumes too much power for battery-operated nodes, LoRaWAN threads the needle.
Read more...
RF filters explained
RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
As RF environments become increasingly crowded, RF filters play a critical role in maintaining signal quality, improving system performance, and ensuring reliable operation.
Read more...
Practical design strategies for 5G
RF Design
Telecoms, Datacoms, Wireless, IoT
The Cavli CQM211 aims to provide a platform that combines strong 5G connectivity with onboard compute capability, as well as interface flexibility that suits both new designs and rapid migrations from earlier products.
Read more...
GigaDevice expands optical communication portfolio
NuVision Electronics
Telecoms, Datacoms, Wireless, IoT
GigaDevice has introduced the new GD32E512 and GD32E252 series MCUs specifically designed for optical module applications.
Read more...
An industry-first Android 16 smart module solution
RF Design
Computer/Embedded Technology Telecoms, Datacoms, Wireless, IoT
The MeiG Smart SLM580 4G Smart Module features native support for Android 16 and covers core frequency bands in major countries and regions worldwide.
Read more...
High performance RF signal conditioning
RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
The AM3269 from Mercury Systems is a high-performance RF preselector module designed to improve receiver sensitivity and signal integrity in demanding electronic warfare, signals intelligence, test, and communications applications.
Read more...
RF filters explained
RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
As RF environments become increasingly crowded, RF filters play a critical role in maintaining signal quality, improving system performance, and ensuring reliable operation.
Read more...
GigaDevice expands optical communication portfolio
NuVision Electronics
Telecoms, Datacoms, Wireless, IoT
GigaDevice has introduced the new GD32E512 and GD32E252 series MCUs specifically designed for optical module applications.
Read more...
Industrial connectivity without compromise
Telecoms, Datacoms, Wireless, IoT
The IR315 combines 4G LTE, Wi-Fi, Ethernet, and VPN technologies into a rugged, industrial-grade platform that enables seamless connectivity across a wide range of applications.
Read more...
printer friendly version