Linear Technology’s new LTC6945 is a 6 GHz integer-N frequency synthesiser with -226 dBc/Hz normalised closed-loop in-band phase noise, -274 dBc/Hz normalised in-band 1/f noise, a wideband phase noise floor of -157 dBc/Hz and -102 dBc spurious output. In a typical 900 MHz application, these performance attributes enable a closed-loop phase noise of
-100 dBc/Hz at 1 kHz offset.
The device is designed to work in conjunction with an external low-noise VCO up to 6 GHz. In addition, it has an on-chip output divider that is programmable from 1 through 6 to extend the tuning frequency coverage to as low as 350 MHz.
The LTC6945 comprises a low-noise reference buffer, a reference divider, phase-frequency detector (PFD) with phase-locked indicator, a low-noise programmable charge pump and an integer feedback divider to attain very low-noise PLL operation. The on-chip, SPI-compatible bidirectional serial port allows frequency tuning and control, and readback of the register and loop status information.
The low phase noise and spurious capabilities of the LTC6945 are targeted at RF and wireless equipment of all types, including multiband base stations supporting LTE, W-CDMA, UMTS, CDMA, multicarrier GSM and WiMAX standards. Its wide frequency range also supports point-to-point broadband wireless access, military, avionics and high-performance test and measurement applications.
The PC-based PLLWizard design software is available to facilitate interactive control and to interface with the LTC6945’s evaluation board. Designers can perform simulations and optimisation with the software and then interactively verify their designs on the actual demonstration circuit. PLLWizard is available for download free of charge at www.linear.com/PLLWizard.
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...High-temperature closed-loop MEMS accelerometer RS South Africa
Analogue, Mixed Signal, LSI
This sensor from TDK is a high-temperature MEMS accelerometer with ±14 g input range and a digital interface for measurement while drilling applications.
Read more...1-Wire EEPROM with secure authenticator Altron Arrow
DSP, Micros & Memory
The DS28E54 secure authenticator combines FIPS 202-compliant secure hash algorithm (SHA-3) challenge and response authentication with secured electrically erasable programmable read-only memory.
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...New clock generator family Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Based on Skyworks’ fifth generation DSPLL and MultiSynth technologies, these devices enable any-frequency, any-output clock generation.
Read more...Dual accelerometers on the same die Altron Arrow
Analogue, Mixed Signal, LSI
The LSM6DSV320X is the first mainstream inertial sensor to house a gyroscope alongside two accelerometers, one capable of sensing up to ±16 g and one sensing up to a staggering ±320 g.
Read more...Dual-range IMU with edge processing EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s innovative LSM6DSV80X combines two accelerometer structures for 16 g and 80 g full-scale sensing, a gyroscope up 4000 dps, and embedded intelligence in a single component.
Read more...Ultra-low-power wireless module Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STM32WBA5MMG from STMicroelectronics is an ultra-low-power, small form factor, certified 2,4 GHz wireless module that supports Bluetooth LE, Zigbee 3.0, OpenThread, and IEEE 802.15.4 proprietary protocols.
Read more...16-channel multicell battery monitor Altron Arrow
Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.
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