RF/IF VGAs
16 February 2011
Telecoms, Datacoms, Wireless, IoT
Analog Devices has débuted a series of highly integrated RF/IF variable gain amplifiers (VGAs). The ADL5201, ADL5202, ADL5240 and ADL5243 combine up to four discrete RF/IF blocks into a single device, allowing radio system manufacturers to realise a reduction in component count and a savings in BOM (bill of materials) cost.
The new device’s combination of performance, linearity and flexibility make them well suited for demanding applications such as cellular base stations, industrial/instrumentation and defence equipment.
The ADL5201 and its dual version, the ADL5202, are digitally controlled, IF-variable gain amplifiers designed to support high IF sampling receiver designs that require precise gain control, high IP3 and a low noise figure for new broadband radio designs. The VGAs combine high dynamic range with low distortion and noise figures for IF frequencies up to 400 MHz and are ideally suited for driving high-speed ADCs. They incorporate proprietary distortion cancellation techniques that enable them to achieve more than 47 dBm output IP3 and noise figure of 6 dB. The chips provide gain control range of 31,5 dB with 0,5 dB resolution and are capable of supporting serial and parallel interface modes.
Operating in the 100 MHz to 4000 MHz frequency range, the ADL5240 and ADL5243 RF/IF digitally controlled VGAs offer enhanced gain control performance and accuracy. Designed with GaAs technology, the ADL5240 combines a DSA (digital step attenuator) and a gain block into a single IC, while the ADL5243 combines a DSA, a gain block and a broadband ¼ W driver amplifier. Either the amplifier or the DSA can be first in the signal chain, supporting system flexibility by allowing the VGA to be used in multiple places throughout a design. The DSA in each VGA offers a wide gain control range of 31,5 dB in 0,5 dB steps, and accommodates serial and parallel interface modes, while the gain block in each IC offers a high linearity of greater than 40 dBm and noise figure of 2,9 dB at 900 MHz. The ADL5243’s ¼ W driver offers linearity performance of 42,0 dBm with a 25,7 dBm P1dB at 2,14 GHz.
Further reading:
Wi-Fi 6 and Bluetooth LE co-processor
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released its ST67W611M1, a low-power Wi-Fi 6 and Bluetooth LE combo co-processor module.
Read more...
Improving accuracy of outdoor devices
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
In a real-world environment, accessing a direct satellite signal is not always possible, and it cannot be relied upon as the only solution to provide a device with accurate location at all times.
Read more...
New 3dB hybrid couplers
Electrocomp
Telecoms, Datacoms, Wireless, IoT
Designed to facilitate the continued evolution of high-frequency wireless systems in various market segments, the new DB0402 3dB 90° hybrid couplers provide repeatable high-frequency performance compatible with automated assembly.
Read more...
Next-level Software Defined Radio
IOT Electronics
Telecoms, Datacoms, Wireless, IoT
Great Scott Gadgets has announced the HackRF Pro, a powerful evolution of its popular Software Defined Radio (SDR) platform designed for engineers and enthusiasts.
Read more...
High-performance Zigbee and BLE module
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The KCMA32S from Quectel boasts an ARM Cortex-M33 processor with a frequency of up to 80 MHz, and supports Zigbee 3.0, BLE 5.3 and BLE mesh.
Read more...
Championing local PCB manufacturing
Master Circuits
Telecoms, Datacoms, Wireless, IoT
Master Circuits, founded in 1994 by Peter Frankish in Durban, was born from the vision to meet the growing local demand for quick-turnaround printed circuit boards in South Africa.
Read more...
How IoT-driven smart data helps businesses stay ahead
Trinity IoT
Telecoms, Datacoms, Wireless, IoT
With around 19 billion IoT devices globally, embedded in everything from machinery to vehicles to consumer products, reliable data is plentiful.
Read more...
IoT-optimised LTE Cat 1 bis module
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Quectel’s EG915K-EU is an LTE Cat 1 bis wireless communication module specially designed for M2M and IoT applications.
Read more...
Chip provides concurrent dual connectivity
EBV Electrolink
Telecoms, Datacoms, Wireless, IoT
The IW693 from NXP is a 2x2 dual-band, highly integrated device that provides concurrent dual Wi-Fi 6E + Wi-Fi 6 and Bluetooth connectivity, supporting four different modes.
Read more...
The 6 GHz band radio solution
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Analog Devices’ 16 nm transceiver family offers a highly integrated solution for this new frequency band, featuring low power consumption and high performance.
Read more...
printer friendly version