MC13111AFB

Product Details

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Universal Cordless Telephone Subsystem IC

The MC13110A/B and MC13111A/B integrates several of the functions required for a cordless telephone into a single integrated circuit. This significantly reduces component count, board space requirements, external adjustments, and lowers overall costs. It is designed for use in both the handset and the base.

• MC13110A and MC13111A: Fully Programmable in all Power Modes

• MC13110B and MC13111B: MPU Clk Out and Second Local Oscillator are “Always On”. There is No Inactive Mode
• Dual Conversion FM Receiver
– Complete Dual Conversion Receiver – Antenna Input to Audio Out 80 MHz Maximum Carrier Frequency
– RSSI Output
– Carrier Detect Output with Programmable Threshold
– Comparator for Data Recovery
– Operates with Either a Quad Coil or Ceramic Discriminator
• Compander
– Expander Includes Mute, Digital Volume Control, Speaker Driver, Programmable Low Pass Filter, and Gain Block
– Compressor Includes Mute, Programmable Low Pass Filter, Limiter, and Gain Block
• MC13110A/B only: Frequency Inversion Scrambler
– Function Controlled via MPU Interface
– Programmable Carrier Modulation Frequency
• Dual Universal Programmable PLL
– Supports New 25 Channel U.S. Standard with No External Switches
– Universal Design for Domestic and Foreign Cordless Telephone Standards
– Digitally Controlled Via a Serial Interface Port
– Receive Side Includes 1st LO VCO, Phase Detector, and 14–Bit Programmable Counter and 2nd LO with 12–Bit Counter
– Transmit Section Contains Phase Detector and 14–Bit Counter
– MPU Clock Outputs Eliminates Need for MPU Crystal
• Low Battery Detect
– Provides Two Levels of Monitoring with Separate Outputs
– Separate, Adjustable Trip Points
• 2.7 to 5.5 V Operation (15 µA Current Consumption in Inactive Mode)
• AN1575: Refer to this Application Note for a List of the “Worldwide Cordless Telephone Frequencies