TDA9885; TDA9886

General description

The TDA9885 is an alignment-free multistandard (PAL and NTSC) vision and sound IF signal Phase-Locked Loop (PLL) demodulator for negative modulation only and FM processing.

The TDA9886 is an alignment-free multistandard (PAL, SECAM and NTSC) vision and sound IF signal PLL demodulator for positive and negative modulation, including sound AM and FM processing.

Features

• 5 V supply voltage
• Gain controlled wideband Vision Intermediate Frequency (VIF) amplifier, AC-coupled
• Multistandard true synchronous demodulation with active carrier regeneration: very linear demodulation, good intermodulation figures, reduced harmonics, and excellent pulse response
• Gated phase detector for L and L-accent standard
• Fully integrated VIF Voltage-Controlled Oscillator (VCO), alignment-free, frequencies switchable for all negative and positive modulated standards via I²C-bus
• Digital acquisition help, VIF frequencies of 33.4 MHz, 33.9 MHz, 38.0 MHz, 38.9 MHz, 45.75 MHz and 58.75 MHz
• 4 MHz reference frequency input: signal from PLL tuning system or operating as crystal oscillator
• VIF Automatic Gain Control (AGC) detector for gain control, operating as peak sync detector for negative modulated signals and as a peak white detector for positive modulated signals
• Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit digital-to-analog converter, AFC bits readable via I²C-bus
• TakeOver Point (TOP) adjustable via I²C-bus or alternatively with potentiometer
• Fully integrated sound carrier trap for 4.5 MHz, 5.5 MHz, 6.0 MHz and 6.5 MHz, controlled by FM-PLL oscillator
• Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode, PLL controlled
• SIF AGC for gain controlled SIF amplifier, single reference QSS mixer able to operate in high performance single reference QSS mode and in intercarrier mode, switchable via I²C-bus
• AM demodulator without extra reference circuit
• Alignment-free selective FM-PLL demodulator with high linearity and low noise
• Four selectable I²C-bus addresses
• I²C-bus control for all functions
• I²C-bus transceiver with pin programmable Module ADdress (MAD)

Products/packages

Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.

Pricing/ordering/availability

Applications

• TV, VTR, PC, and STB applications

Related applications
PCI analog/DVB-T stereo TV receiver

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