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TDA8722 Datasheet

Part NameDescriptionManufacturer
TDA8722 I2C-bus programmable modulator for negative video modulation and FM sound Philips
Philips Electronics Philips
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GENERAL DESCRIPTION
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 NTSC).

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 receivers.

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