Brief Description
The CMX615 is an integrated telecom tone generator and DTMF encoder designed for ISDN interfaces, Wireless Local Loop and Analogue to Digital Phone Conversion systems. The tone generator covers an extensive range of pre-programmed tones used in analogue phone systems (POTS). Three outputs are provided: ‘Ringing signals’, ‘In-band tones or FSK data’, and ‘12kHz/16kHz Metering pulses’. Simple software control facilitates the interface to a wide range of commonly used µCs and SLICs, enabling a comprehensive analogue telephone line presentation.

FEATUREs
• Pre-Programmed Tone Generators
• Fully Integrated DTMF Encoder
• SPM Generator
• Simple Serial Control Interface
• ‘Zero-Power’ (1µA) Standby Mode
• 3.58MHz Xtal/Clock
• V23/Bell 202 FSK Generator
• Digital Ringing Voltage Generator

APPLICATIONs
• Digital Line to POTS Interface
• Subscriber Terminal Adapters
• Wireless Local Loop
• Computer Telephony Integration
• Telephone/Radio Patch Systems
• Pair Gain Systems
• Billing/SPM Systems