TDA8722 - NXP

TDA8722 I2C-bus programmable modulator for negative video modulation and FM sound

plastic small outline package; 20 leads; body width 7.5 mm plastic shrink small outline package; 20 leads; body width 4.4 mm GENERAL DESCRIPTION TDA8722 The TDA8722 is a programmable modulator which generates an RF TV channel from a baseband video signal and a baseband audio signal in the event of negative video and FM sound standards (PAL B/G, I, D/K and .

Features

• Video amplifier with clamp and white clip circuits
• FM sound modulator
• Asymmetrical and symmetrical RF outputs available
• Symmetrical RF oscillator using only a few external components
• External adjusting of modulation depth and level of the sound subcarrier
• I2C-bus receiver for frequency setting and test-mode selection
• One I2C programmable output port
• On-chip Phase-Locked Loop (PLL) frequency synthesizer
• On-chip power supply regulator
• Bus switchable oscillator
• On-chip Test Pattern Signal Generator (TPSG). APPLICATIONS
• Video recorders
• Cable converters
• Satellite receive.