TDA8051 Datasheet PDF

NXP Semiconductors TDA8051

TDA8051 is a monolithic bipolar IC intended for Quadrature Phase Shift Key (QPSK) demodulation. It includes: • Low noise RF and gain controlled amplifier • Two matched mixers • Symmetrical Voltage Controlled Oscillator (VCO) with 0 to 90° signal generator whose frequency is controlled by an integrated Phase Lock Loop (PLL) circuit. The PLL consists of: • Divide by four preamplifier • 12-bit programmable main divider • Crystal oscillator with 8-bit programmable reference divider • Phase/frequency detector combined with charge pump to drive tuning amplifier • 30 V output QUICK REFERENCE DATA All AC units are RMS values unless otherwise specified.