High resolution PLL for wireless applications
28 November 2007
Telecoms, Datacoms, Wireless, IoT
Analog Devices has announced the ADF4157, a new high frequency, fractional-N PLL synthesiser for applications that require low phase noise and ultra-fine-tuning resolution, such as satellite communications, private mobile radios (PMR), instrumentation and wireless base station equipment, including those that support GSM, PCS, DCS, WiMAX, CDMA and W-CDMA networks. The 25-bit fixed-modulus divider provides for ultra-fine frequency resolution. Design and simulation software, aimed at simplifying and streamlining loop filter design, is available free of charge.
The ADF4157 operates up to 6 GHz using a power supply ranging from 2,7 V to 3,3 V. The device can be powered down when not in use, resulting in overall system current reduction from 23 mA to 0,01 mA. The ADF4157 consists of a low-noise digital phase-frequency detector (PFD), a precision high-voltage charge pump, a programmable reference divider, programmable charge pump currents and a 25-bit fixed-modulus fractional divider.
The RF output phase is programmable for applications that require a particular phase relationship between the output and the reference. A three-wire interface controls all of the on-chip registers. The ADF4157 also features separate VP for extended VCO tuning voltage and a digital lock-detect function.
Further reading:
Quectel increases its IoT antenna range
Quectel Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
Quectel has expanded its IoT antenna portfolio with six new 4G and 5G antennas that cover a wide range of use cases.
Read more...
Webinar: Game-changing Matter standard
EBV Electrolink
Telecoms, Datacoms, Wireless, IoT
Join Infineon for an exclusive one-hour webinar with EBV Elektronik, exploring the groundbreaking Matter standard, and its profound implications for the future of smart homes.
Read more...
Wi-Fi 6/BLE module enables rapid development
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Telit Cinterion has announced the WE310K6, a fully integrated, low-power module featuring dual-band, dual-stream Wi-Fi 6, and dual-mode Bluetooth/BLE.
Read more...
Low phase noise amplifier
RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
The MAAL-011158 from Macom is an easy-to-use low-phase noise amplifier that provides 12 dB of gain in a 32-lead QFN plastic package.
Read more...
Webinar: Enabling the digital transformation of IIoT with Bluetooth
Telecoms, Datacoms, Wireless, IoT
Key industrial use cases for Bluetooth will be reviewed, including the main performance requirements for Bluetooth in industrial applications, and the technical features available.
Read more...
Full sensor to cloud solution
CST Electronics
Telecoms, Datacoms, Wireless, IoT
NeoCortec has demonstrated the seamless and rapid development of full sensor-to-cloud solutions using NeoMesh Click boards from MikroE and the IoTConnect cloud solution from Avnet.
Read more...
Long-range Wi-Fi HaLow module
TRX Electronics
Telecoms, Datacoms, Wireless, IoT
One of Mouser’s newest products is the Morse Micro MM6108-MF08651-US Wi-Fi HaLow Module, which adheres to the IEEE 802.11ah standard.
Read more...
Quectel launches 3GPP NTN comms module
Quectel Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
Quectel Wireless Solutions has announced the Quectel BG95-S5 3GPP non-terrestrial network (NTN) satellite communication module.
Read more...
SIMCom’s A7673x series
Otto Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
SIMCom recently released the A7673X series, a Cat.1 bis module based on the ASR1606 chipset, that supports wireless communication modes of LTE-FDD, with a maximum downlink rate of 10 Mbps and a maximum uplink rate of 5 Mbps.
Read more...
Accelerating the commercialisation of the 5G IoT markets
Altron Arrow
Editor's Choice Telecoms, Datacoms, Wireless, IoT
Fibocom unveils Non-Terrestrial Networks (NTN) module MA510-GL, enabling satellite and cellular connectivity to IoT applications.
Read more...
printer friendly version