Telecoms, Datacoms, Wireless, IoT


Wideband PLLs with integrated VCOs

16 May 2012 Telecoms, Datacoms, Wireless, IoT

Hittite has launched two new SMT packaged wideband PLLs (phase locked loops) with integrated VCOs - the HMC833LP6GE and the HMC834LP6GE. The devices are well suited for a wide range of applications including high-performance cellular/4G WiMax infrastructure, repeaters and femtocells, communications test equipment, CATV equipment, very high data rate radios, phased array and DDS replacement applications.

The HMC833LP6GE is a low-noise, wideband, fractional-N PLL that features an integrated VCO (voltage controlled oscillator) with a fundamental frequency of 1500 MHz–3000 MHz, and an integrated VCO output divider (divide by 1/2/4/6.../60/62) and doubler. These features allow it to generate frequencies from 25 MHz to 6000 MHz.

The HMC834LP6GE features an integrated VCO with a fundamental frequency of 2800 MHz–4200 MHz, and an integrated VCO output divider (divide by 1/2/4/6.../60/62) and doubler, that together allow it to generate frequencies from 45 MHz to 1050 MHz, from 1400 MHz to 2100 MHz, from 2800 MHz to 4200 MHz, and from 5600 MHz to 8400 MHz.

The devices feature excellent phase noise and spurious performance across all frequencies, which minimises blocker effects and improves receiver sensitivity and transmitter spectral purity. The noise floor of less than -170 dBc/Hz makes them ideal for a variety of applications such as LO for RF mixers, a clock source for high-frequency data-converters, or a tuneable reference source for ultra-low spurious applications.

The HMC833LP6GE and the HMC834LP6GE also feature 9 dB of programmable RF output power control (3 dB steps) and an output mute function with over 40 dB of isolation across the entire operating frequency range. Both devices feature an ‘exact frequency mode’ that enables users to generate output frequencies with 0 Hz frequency error. An integrated phase detector feature and a delta-sigma modulator, which is capable of operating up to 100 MHz, enable wider loop-bandwidths with excellent spectral performance.

For more information contact Andrew Hutton, RF Design, +27 (0)21 555 8400, [email protected], www.rfdesign.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Industrial Ethernet time sensitive networking switch
RS South Africa Telecoms, Datacoms, Wireless, IoT
The ADIN3310 and ADIN6310 are 3-port and 6-port Gigabit Ethernet time sensitive networking (TSN) switches with integrated security primarily designed for industrial Ethernet applications.

Read more...
When it comes to long-term reliability of RF amplifier ICs, focus first on die junction temperature
Altron Arrow Editor's Choice Telecoms, Datacoms, Wireless, IoT
When considering the long-term reliability of integrated circuits, a common misconception is that high package or die thermal resistance is problematic. However, high or low thermal resistance, by itself, tells an incomplete story.

Read more...
Automotive-grade digital isolators
Telecoms, Datacoms, Wireless, IoT
The NSI83xx series of capacitive-based isolators from NOVOSENSE Microelectronics offer superior EOS resilience and minimal power noise susceptibility.

Read more...
Why bis means business for LTE Cat 1 IoT connections
NuVision Electronics Editor's Choice Telecoms, Datacoms, Wireless, IoT
Tomaž Petaros, product manager IoT EMEA at Quectel Wireless Solutions explains why the market for Cat 1bis IoT connections is getting busy.

Read more...
Wi-Fi in 2025: When is Wi-Fi 7 the answer?
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
Wi-Fi 7 introduces multi-link operation and lower latency, a game-changing feature that allows devices to transmit and receive data across multiple frequency bands simultaneously to significantly reduce network congestion.

Read more...
Bluetooth Lite SoCs purpose built for IoT
NuVision Electronics Telecoms, Datacoms, Wireless, IoT
Whether it is enabling predictive maintenance on industrial equipment, tracking assets in dense environments, or running for years on a coin cell battery in ultra-low power sensors, developers need solutions that are lean, reliable, and ready to scale with emerging use cases.

Read more...
LTE Cat 1bis module
Otto Wireless Solutions Telecoms, Datacoms, Wireless, IoT
The A7673X LTE Cat 1bis module from SimCom is engineered to meet the growing demands of the IoT industry, offering exceptional performance and seamless integration.

Read more...
Track with precision
Electrocomp Telecoms, Datacoms, Wireless, IoT
KYOCERA AVX provides innovative antennas for cellular, LTE-M, NB-IoT, LoRa, GNSS, BLE, UWB, Wi-Fi, and future Satellite IoT.

Read more...
Wi-Fi 7 front-end module
RF Design Telecoms, Datacoms, Wireless, IoT
The Qorvo QPF4609 is an integrated front end module designed for 802.11be systems that has integrated matching, which minimises layout area.

Read more...
Multi-channel downconverter
Vepac Electronics Telecoms, Datacoms, Wireless, IoT
The Downconverter from Crane Aerospace is a converter that operates from 2 to 18 GHz and delivers a noise figure of 11 dB with an attenuation range of 25 dB.

Read more...