RF transceiver enables 'minimalist wireless modems'

17 November 2004 Telecoms, Datacoms, Wireless, IoT

"The miniature wireless modem end-product is now a reality," announced CML Microcircuits as it launched its new time, space and component-saving wireless data IC, the CMX990.

A single-chip GMSK packet-data modem with RF transceiver, this innovative half-duplex IC offers: a versatile baseband modem, IF and RF processing functions, programmable synthesizers, signal level-setting functions and comprehensive on-chip and peripheral control, monitoring and interfacing.

With a data rate of 4 to 16 Kbps with selectable BT values, at RF frequencies of 400 MHz to 1 GHz, the CMX990 is formattable to both freeformat and packet data schemes, is fully Mobitex-compatible and can be set to comply with EN 300 113 and FCC CFR 47 Part 90 standards. Fomattable to freeformat or packet operations, the CMX990 uses simple task-command configuration to provide simplicity and efficiency to the control and operation of the modem. FEC, CRC, data scrambling and interleaving functions are available. Automatic Rx clock extraction and signal level measurement and compensation allow the CMX990 modem to operate in all signal conditions.

Employing external VCO inputs, two programmable on-chip synthesisers provide all the frequencies necessary for wireless data operation. Addressable on-chip DACs and ADCs are available for control and monitoring of a wide range of external functions, including system levels and the VCO loops, with separate dedicated functions for RF PA stage and TCXO control.

The CMX990 operates on 3 volts and is available in a 'no-leads' 64 VQFN package. Two separate full-feature PCB-based kits are available: the EV9900 to demonstrate general data operation, and the DE9901, a total 'plug-and-play' Mobitex operation.

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...

---