Telecoms, Datacoms, Wireless, IoT


Integrated synthesiser for wireless base stations

23 October 2002 Telecoms, Datacoms, Wireless, IoT

Analog Devices has announced an integrated synthesiser that it claims is the first solution to feature a 1 GSa/s direct digital synthesiser (DDS), 10-bit D/A converter and fast frequency hopping and fine-tuning resolution functionalities on a single chip. The AD9858 performs at more than triple the speed of previous solutions, without increasing power dissipation, says the manufacturer. This makes it well-suited to wireless infrastructure as well as military and aerospace radar applications.

On-chip functional blocks include a DDS core, a digital to analog converter (DAC), 2 GHz RF mixer, a 150 MHz phase detector and a programmable charge pump with proprietary fast-locking acquisition logic. The integration of these multiple functional blocks and their respective levels of performance enable the AD9858 to achieve high synthesiser performance at low levels of cost, power dissipation and implementation complexity.

The AD9858 DDS also has a 32-bit phase accumulator, 14-bit phase offset adjustment, an analog mixer capable of operating at 2 GHz, a phase-frequency detector (PFD), and a programmable charge pump with advanced fast-lock capability. These RF building blocks can be used for various frequency synthesis loops or as needed in system design.

The new DDS can directly generate frequencies up to 400+ MHz when driven at 1 GHz internal clock speed. The AD9858 is easily configured by writing data to its on-chip digital registers that control all operations of the device. In addition, it can be programmed to operate in single-tone mode or in a frequency-sweeping mode.





Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Otto Wireless reveals RAD new product line
29 July 2020, Otto Wireless , Telecoms, Datacoms, Wireless, IoT
As a world leader in the telecommunications field with over 39 years of innovation, a significant worldwide presence in over 150 countries and an installed base of more than 16 million network elements, ...

Read more...
New benchmark in low-cost LTE to be released soon
29 July 2020, Otto Wireless , Telecoms, Datacoms, Wireless, IoT
SIMCom, represented locally by Otto Wireless Solutions, has expanded its family of SIM7600, LTE Cat. 1 devices, and is due to unveil a new flagship product, which is expected to take the 4G market by ...

Read more...
Multi-sensor IoT module
29 July 2020, Electrocomp , Telecoms, Datacoms, Wireless, IoT
TDK announced worldwide availability of the InvenSense SmartBug, a compact, wireless multi-sensor solution designed for a plethora of commercial and consumer IoT applications. The out-of-the-box solution ...

Read more...
Bluetooth SiP for wearables and medical devices
30 June 2020, RF Design , Telecoms, Datacoms, Wireless, IoT
Nordic Semiconductor announced that Tangshan, China-based Tangshan Hongjia Electronic Technology has selected Nordic’s nRF52840 Bluetooth 5.2/Bluetooth Low Energy (Bluetooth LE) advanced multiprotocol ...

Read more...
Adhesive mount combo antenna
30 June 2020, RF Design , Telecoms, Datacoms, Wireless, IoT
The Taoglas MA256.A is a 3-in-1 adhesive mount combination antenna for use in cases requiring worldwide 4G coverage and GPS/GLONASS/BeiDou/Galileo for positioning. The MA256 has been designed to be mounted ...

Read more...
Diodes for RF/microwave applications
30 June 2020, Hi-Q Electronics , Telecoms, Datacoms, Wireless, IoT
Skyworks’ broad portfolio of PIN, limiter, Schottky, and varactor diodes are ideal for WLAN, infrastructure, handset, Satcom (LNB/DBS-CATV), automotive, aerospace and defence, test and measurement, metering, ...

Read more...
Small form factor 5G/4G antenna
30 June 2020, RF Design , Telecoms, Datacoms, Wireless, IoT
The Taoglas Olympian II G45 is a low-profile, robust external 5G/4G antenna. The permanent mount antenna has a small form factor at only 48,5 mm tall and 50 mm in diameter. It is ideal for external use, ...

Read more...
Dual-core wireless MCU
30 June 2020, Altron Arrow , Telecoms, Datacoms, Wireless, IoT
The STM32WBx0 is a dual-core wireless MCU based on an Arm Cortex-M4 core running at 64 MHz (application processor) and an Arm Cortex-M0+ core at 32 MHz (network processor). The STM32WBx0 Value Line ...

Read more...
MIFARE DESFire EV3 IC
30 June 2020, EBV Electrolink , Telecoms, Datacoms, Wireless, IoT
NXP Semiconductors announced its new MIFARE DESFire EV3 IC that ushers in next-generation performance, advanced security and seamless integration of mobile services for a new era of security and connectivity ...

Read more...
Cellular chipset for global low-power IoT
30 June 2020, RF Design , Telecoms, Datacoms, Wireless, IoT
The UBX-R5 Series from u-blox is a global multi-band cellular chipset that supports LPWA, LTE-M and NB-IoT technologies. It is optimised for IoT applications such as smart metering, telematics, tracking, ...

Read more...