Hittite has launched what is believed to be the industry’s first programmable harmonic low-pass filter (LPF).
The HMC1044LP3E is ideally suited for cellular multi-standard, multi-carrier designs based on quadrature modulators and demodulators, for wideband signal generators for instrumentation and test equipment, and for all other wideband communications, automotive and industrial applications where harmonic filtering is required.
The IC features 16 programmable settings to select a bandwidth between 1 and 3 GHz. The bandwidth can be dynamically updated via a serial interface to effectively track the target operating frequency over a wide bandwidth.
Optimal system performance can be achieved by configuring the HMC1044LP3E for maximum suppression of the 2nd, 3rd or all harmonics. The small 3 x 3 mm footprint yields area savings over existing filtering solutions which often require switched filters or banded versions of the product.
An ideal application for the HMC1044LP3E is in wideband cellular transceivers using quadrature modulators and demodulators. Modulators and demodulators typically employ a filter network to create the in-phase (I) and quadrature (Q) components at either the fundamental (1 x LO) or at two times (2 x LO) the local oscillator frequency; the 1 x LO types are particularly sensitive to LO 3rd harmonic levels, while the 2 x LO types are more sensitive to 2nd harmonic levels.
High LO harmonics cause amplitude and phase mismatches which degrade modulator sideband rejection and demodulator image rejection performance. The HMC1044LP3E is designed to ensure that 2nd and 3rd harmonics of the LO are kept below -20 dBc across the operating band.
In test instrumentation applications such as wideband signal generators, the device can be used to improve the harmonic content of the wideband source, and can replace traditional switched filter banks.
Understanding two key tools for cleaner serial data Altron Arrow
Editor's Choice Analogue, Mixed Signal, LSI
Understanding how pre-emphasis and equalisation works, and when to use one over the other, is critical when designing reliable high-speed systems.
Read more...Axon NPU powers smarter edge RF Design
AI & ML
The nRF54LM20B from Nordic Semiconductor is an ultra-low-power wireless SoC that combines advanced edge AI capabilities with robust radio connectivity and rich peripheral support.
Read more...Compact Ka-band GaN PA RF Design
Telecoms, Datacoms, Wireless, IoT
The CMX90A705 from CML Microcircuits is a high-performance two-stage GaN power amplifier operating across 27,5 to 31 GHz and targeting Ka-band applications.
Read more...Nordic accelerates cellular IoT leadership RF Design
Telecoms, Datacoms, Wireless, IoT
The company unveiled its next-generation portfolio featuring Cat 1 bis, satellite NTN, and advanced LTE-M/NB-IoT with edge AI, delivering secure and resilient connectivity across billions of IoT devices.
Read more...Compact cellular IoT SiP with GNSS RF Design
Telecoms, Datacoms, Wireless, IoT
Combining low-power connectivity, edge processing, and positioning capabilities in a compact module, Nordic’s nRF9151 targets applications such as asset tracking, smart metering, industrial monitoring, and smart city infrastructure.
Read more...IO Ninja and Python working hand-in-hand RF Design
DSP, Micros & Memory
IO Ninja is a professional all-in-one terminal emulator, sniffer, and protocol analyser that runs natively on Windows, Linux, and macOS, and excels as a UI debugger for serial, network, USB, and all other forms of communication.
Read more...Multi-band GNSS patch antenna RF Design
Telecoms, Datacoms, Wireless, IoT
The Taoglas AHP2356A is a compact, high-performance active GNSS patch antenna designed for next-generation positioning systems requiring precision, reliability, and multi-constellation support.
Read more...Wideband MMIC power amp RF Design
Telecoms, Datacoms, Wireless, IoT
The Qorvo QPA2597 is a wideband MMIC power amplifier built using proven GaN on SiC technology and designed to operate across the 2 to 6 GHz frequency range.
Read more...u-blox redefining what’s possible RF Design
Telecoms, Datacoms, Wireless, IoT
u-blox achieved what was once thought impossible with the launch of the DAN-F10N, the industry’s smallest and most reliable L1, L5 dual-band GNSS antenna module.
Read more...Multiprotocol SoC RF Design
Telecoms, Datacoms, Wireless, IoT
The nRF54LM20A from Nordic Semiconductor is a multiprotocol wireless System-on-Chip designed for demanding wireless Bluetooth designs.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version