PCF7953MTTC1AC2200

RF Transmitter Overview

The PCF7953MTTC1AC2200 is an RF microcontroller and transmitter integrated circuit manufactured by NXP Semiconductors. It is designed for keyless entry and immobilizer applications, combining a transponder interface with a remote control function. The device operates within the 315 MHz or 433 MHz frequency bands, utilizing Phase Shift Keying (PSK) modulation for secure data transmission. It features an integrated PLL synthesizer and power amplifier to ensure reliable wireless communication in automotive environments.

RF Transmitter Feature Summary

• Integrates a high-performance RF transmitter with a security transponder interface for seamless keyless entry and immobilizer functionality.
• Includes an on-chip Phase Locked Loop (PLL) synthesizer and power amplifier to generate stable carrier frequencies with efficient signal output.
• Supports PSK modulation schemes to provide robust data integrity and resistance to interference in automotive electronic systems.

RF Transmitter Applications

• Automotive keyless entry systems
• Vehicle immobilizer transponders
• Remote control units for automotive access

RF Transmitter Procurement Notes

Verify the specific suffix codes (e.g., C1AC2200) against the official NXP datasheet to confirm the exact operating frequency band and pin configuration, as these variations define the electrical characteristics. Ensure that the RoHS compliance status matches current regulatory requirements for your target market. Cross-reference the package marking with the manufacturer's identification guide to prevent counterfeit components during sourcing.

RF Transmitter Selection Notes

Select this component when a combined solution for passive immobilization and active remote entry is required within a single IC. Consider the 28-TSSOP package dimensions for PCB layout constraints. Evaluate the need for external matching networks based on the specific antenna design and frequency band selected. Confirm compatibility with the vehicle's existing authentication protocols before integration into the final assembly.

RF Transmitter Part Context

This part belongs to the PCF7953 series of RF microcontrollers from NXP Semiconductors. The series is specifically engineered for automotive security applications, merging transponder technology with RF transmission capabilities. It serves as a core component in modern vehicle access systems, replacing discrete solutions to reduce board space and improve reliability in key fobs and door handle modules.

RF Transmitter Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with any alternative devices by comparing the pinout, voltage levels, and modulation specifications directly with the original datasheet. No direct cross-reference models are listed in the source material.