TDA9800 Overview
The TDA9800 is a monolithic integrated circuit for vision and sound IF signal processing in TV and VTR sets. for video intermodulation attenuation PARAMETER positive supply voltage (pin 20) MIN. July 1994 3 Philips Semiconductors Preliminary specification VIF-PLL demodulator and FM-PLL detector PINNING SYMBOL.
TDA9800 Key Features
- Suitable for negative vision modulation
- Applicable for IF frequencies of 38.9 MHz, 45.75 MHz and 58.75 MHz
- Gain controlled wide band VIF amplifier (AC coupled)
- True synchronous demodulation with active carrier regeneration (ultra-linear demodulation, good intermodulation figures,
- Peak sync AGC for negative modulation
- Video amplifier to match sound trap and sound filter
- AGC output voltage for tuner; adjustable take-over point (TOP)
- AFC detector without extra reference circuit
- Alignment-free FM-PLL detector with high linearity
- Stabilizer circuit for ripple rejection and to achieve constant output signals