TDA8261TW
Overview
- Direct conversion Quadrature Phase Shift Keying (QPSK) and 8PSK demodulation (Zero-IF)
- 950 to 2175 MHz frequency range
- High-level asymmetrical RF input
- 0 to 50 dB variable gain on RF input
- Loop-controlled 0° to 90° phase shifter
- High AGC linearity (<1 dB per bit with an 8-bit DAC), AGC between 0 and 3 V
- External baseband filters for In-phase (I) and Quadrature (Q) signal paths
- I2C-bus controlled PLL frequency synthesizer
- Low phase noise
- Operation from a 4 MHz crystal (allowing the use of an SMD crystal)
