TDA9885TS/V3,112

Video Processing Overview

The TDA9885TS/V3,112 is an I2C-bus controlled single and multistandard alignment-free IF-PLL demodulator designed for negative modulation only. It processes vision and sound intermediate frequency signals using a fully integrated VIF Voltage-Controlled Oscillator (VCO) with switchable frequencies via the I2C bus. The device features a gain-controlled wideband Vision Intermediate Frequency (VIF) amplifier, digital acquisition help, and precise Automatic Frequency Control (AFC). It supports multiple sound carrier traps and includes Single Reference Quasi Split Sound (QSS) mixing capabilities.

Video Processing Feature Summary

• Multistandard true synchronous demodulation with active carrier regeneration
• Fully integrated VIF Voltage-Controlled Oscillator (VCO) with digital acquisition help
• Precise fully digital Automatic Frequency Control (AFC) detector
• Single reference QSS mixer capable of high-performance intercarrier mode

Video Processing Applications

• Television systems
• Video Tape Recorders (VTR)
• Personal Computer (PC) video processing
• Set-Top Box (STB) applications

Video Processing Procurement Notes

Verify the specific suffix 'V3' against current NXP documentation to confirm package type and revision status. Confirm that the component is intended for negative modulation standards only, as the TDA9886 variant handles positive modulation. Ensure the ordering code matches the required SSOP24 package configuration for your design.

Video Processing Selection Notes

Select this component for designs requiring alignment-free PLL demodulation for negative modulation standards. The device integrates both vision and sound processing, reducing external component count. Consider the available I2C addresses and MAD pin configurations when designing the system bus architecture to prevent address conflicts.

Video Processing Part Context

This part belongs to the TDA9885/TDA9886 family of IF-PLL demodulators manufactured by NXP Semiconductors. The TDA9885 series specifically targets negative modulation applications, whereas the TDA9886 supports both positive and negative modulation including SECAM. The TS suffix indicates the SSOP24 plastic shrink small outline package.

Video Processing Replacement Considerations

TDA9885TS/V5

Video Processing FAQ

Does the TDA9885 support positive modulation?

No, the TDA9885 is designed for negative modulation only. For positive modulation support, the TDA9886 should be used.

How is the TakeOver Point (TOP) adjusted?

The TakeOver Point can be adjusted via the I2C-bus or alternatively with a potentiometer connected to the TOP pin if I2C storage is not utilized.