Telecoms, Datacoms, Wireless, IoT


Telecom signalling device offers design flexibility

11 July 2007 Telecoms, Datacoms, Wireless, IoT

CML’s new CMX865A DTMF codec and telecom signalling combo gives designers increased flexibility when designing new-generation telemetry and telephone based information systems.

The low-cost IC offers advanced performance and low power requirements in a small footprint package, making it ideal for wireless local terminals (FCT/FWT/WLL), private branch exchanges (PBXs) and alarm and monitoring applications.

The CMX865A offers multistandard signalling capabilities, with data applications being facilitated by a flexible V.23/V.21 FSK (plus Bell equivalent) on-chip modem. Flexible line driver, hybrid and receiver circuits are integrated on-chip, requiring only passive components to build a 2- or 4-wire line interface. A high-quality DTMF decoder offers excellent immunity to noise on voice and a standard DTMF encoder is included to expand the range of suitable applications. Host control and data transfer are via a high-speed serial bus that operates in normal and power-save modes, compatible with most simple types of microcontroller serial interface. An embedded USART allows multiformat asynchronous data and unformatted synchronous data to be received or transmitted as 8-bit bytes.

The CMX865A operates from a single 3,0 V to 3,6 V supply over a temperature range of -40°C to +85°C and is available in 16-pin SOIC (D4) or 16-pin TSSOP (E4) packages.



Credit(s)



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...
Smallest automotive maXTouch controllers
29 July 2020, Altron Arrow, Avnet South Africa , DSP, Micros & Memory
To help enhance and ease today’s driving experience, automotive manufacturers are implementing additional touch displays beyond the centre infotainment display (CID). Supporting the application of these ...

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...