The CMX264 is a frequency domain scrambler for use in analog cellular phone systems. It contains separate Tx and Rx paths for full duplex operation and operates under µProcessor control via a simple serial interface.

FEATUREs and Applications
• Ensures Privacy
• Full Duplex Operation
• High Quality Recovered Audio
• Low Height, Surface Mount Package
• 3.0V, Low Power Operation
• Fixed or Rolling Code
• Standby Mode
• Uses Split Band Inversion
• Low Current, Low Voltage
• 4.433619MHz Operation