TDA8050 - NXP

TDA8050 TDA8046H

The Quadrature Phase Shift Keying (QPSK) transmitter is a monolithic bipolar IC dedicated for quadrature modulation of the I and Q signals. It includes: • Two double-balanced mixers • Symmetrical Voltage Controlled Oscillator (VCO) with 0 to 90 degree signal generation for modulation • Phase-Locked Loop (PLL) for IF frequency control • Conversion mixer QUICK.

Features

• Programmable gain
• PLL controlled carrier frequency
• 3-wire transmission bus
• 5 V supply voltage. APPLICATIONS
• QPSK modulation. GENERAL DESCRIPTION The Quadrature Phase Shift Keying (QPSK) transmitter is a monolithic bipolar IC dedicated for quadrature modulation of the I and Q signals. It includes:
• Two double-balanced mixers
• Symmetrical Voltage Controlled Oscillator (VCO) with 0 to 90 degree signal generation for modulation
• Phase-Locked Loop (PLL) for IF frequency control
• Conversion mixer QUICK REFERENCE DATA SYMBOL VCC fc Vo(max) fxtal fref(MOD) fstep Tamb supply voltage outpu.