The PMB2920S is a highly integrated RF transceiver from Infineon Technologies, designed for use in DECT (Digital Enhanced Cordless Telecommunications) applications. It integrates all the necessary building blocks for a complete DECT front-end solution, including the receiver, transmitter, and synthesizer. This high level of integration simplifies design and reduces the overall system cost.

Applications:

• DECT base stations
• DECT handsets
• Cordless phones
• Wireless voice communication systems

Features:

• Fully integrated DECT RF transceiver
• Supports DECT and DECT 6.0 standards
• High sensitivity receiver
• Low noise amplifier (LNA)
• Integrated transmit power amplifier
• Synthesizer with low phase noise
• Integrated VCO (Voltage Controlled Oscillator)
• Automatic Frequency Control (AFC)
• Automatic Gain Control (AGC)
• Low power consumption
• Small package size

Benefits:

• Reduced system cost due to high integration
• Simplified design and faster time-to-market
• Excellent RF performance
• Low power consumption for extended battery life
• Compact solution for space-constrained applications
• Improved voice quality
• Enhanced reliability

Additional Details:

The PMB2920S operates in the 1.88 - 1.90 GHz frequency band, which is the standard DECT frequency range. It supports GFSK (Gaussian Frequency Shift Keying) modulation, which is the modulation scheme used in DECT. The device is typically supplied in a small surface-mount package, making it easy to integrate into a variety of designs. It requires a supply voltage of typically 3.3V. The integrated LNA provides high sensitivity, enabling reliable communication even in weak signal environments. The integrated power amplifier delivers sufficient output power for robust transmission. The synthesizer is designed to provide a stable and accurate frequency source with low phase noise, ensuring high-quality voice communication. The AFC and AGC functions automatically compensate for frequency and signal strength variations, further improving the performance and reliability of the system. The device is designed for lead-free assembly.