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.
Further reading:
What does Wi-Fi 7 mean for South African networks?
Telecoms, Datacoms, Wireless, IoT
With Wi-Fi 7 (802.11be), we are finally looking at a standard that was built, not just for more devices, but for the new way networks are used.
Read more...
Multiprotocol wireless SoC
RF Design
Telecoms, Datacoms, Wireless, IoT
The nRF54LM20A from Nordic Semiconductor is a multiprotocol wireless System-on-Chip designed for demanding designs in Bluetooth devices.
Read more...
High performance communication
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Quectel’s FCS950R is a high-performance Wi-Fi 5 and Bluetooth 4.2 module that can deliver a maximum data rate up to 433,3 Mbps in 802.11ac mode.
Read more...
Expanded STM32WL3x line for IoT sensors
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STM32WL31x and STM32WL30x are more tailored versions of the STM32WL33x for designers who wish to focus on specific features, while lowering their bill of materials.
Read more...
Full-band GNSS helical antenna
RF Design
Telecoms, Datacoms, Wireless, IoT
A key feature of Calian’s HC3990XF antenna design is that it does not require a ground plane, making it ideal for size-constrained applications.
Read more...
BLE and BT Mesh module
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The HM-BT4531 from HOPERF is a BLE data transmission module that features an ARM Cortex-M0 32-bit processor.
Read more...
Espressif entering the Wi-Fi 6E market
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Espressif Systems is entering the Wi-Fi 6E market, extending its connectivity portfolio into the domain of high-throughput, low-latency wireless solutions.
Read more...
Ultra-low jitter clock buffers
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
New SKY53510/80/40 family of clock fanout buffers from Skyworks are purpose-built for data centres, wireless networks, and PCIe Gen 7 applications.
Read more...
Cutting-edge broadband power amplifier
RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
Designed for high efficiency and reliability, the WPGM0206012M from WAVEPIA is a cutting-edge broadband GaN MMIC power amplifier operating from 500 MHz to 8,5 GHz.
Read more...
The trends driving uptake of IoT Platform as a Service
Trinity IoT
Editor's Choice Telecoms, Datacoms, Wireless, IoT
IoT platforms, delivered as a service, are the key that will enable enterprises to leverage a number of growing trends within the IT space, and access a range of benefits that will help them grow their businesses.
Read more...
printer friendly version