GENERAL DESCRIPTION
The TDA8042M is a monolitic bipolar IC dedicated for BPSK and QPSK demodulation. It is designed to be used together with the TDA8043 as part of a complete BPSK/QPSK satellite demodulator and decoder. The bandwidth of the TDA8042M allows symbol rates up to 45 Msymbols/s. It includes two matched mixers, an IF gain controlled amplifier, a symmetrical oscillator, a 0°/90° phase shifter, two low-pass filters and two matched baseband amplifiers.

FEATURES
• 5 V supply voltage
• Internal voltage reference
• 350 to 650 MHz input frequency range
• On-chip 0° and 90° phase shifter
• Symbol rate up to 45 Msymbols/s
• High input sensitivity
• Built-in voltage stabilizer
• AGC amplifier with 21 dB control range
• AGC detector.

APPLICATION
• Binary Phase-Shift Keying (BPSK) and Quadrature Phase-Shift Keying (QPSK) demodulation.