TDA9881TS/V2,518

Video Processing Overview

The TDA9881TS/V2,518 is an alignment-free multistandard vision and sound IF signal PLL demodulator for negative modulation, including Quasi Split Sound (QSS) or intercarrier FM processing. It operates on a 5 V supply voltage with a typical current of 63 mA. The device features a gain-controlled wideband Vision Intermediate Frequency (VIF) amplifier with a typical control range of 66 dB. It supports vision carrier frequencies of 38.0 MHz, 38.9 MHz, 45.75 MHz, and 58.75 MHz. The video output at pin CVBS provides a peak-to-peak voltage of 2.0 V. Audio performance includes a weighted signal-to-noise ratio of 56 dB and total harmonic distortion of 0.15%.

Video Processing Feature Summary

• Multistandard true synchronous demodulation for negative modulated TV standards with active carrier regeneration
• Fully integrated VIF Voltage Controlled Oscillator (VCO) that is alignment-free and switchable via logic pins
• Digital acquisition help circuit to prevent false locking of the Phase-Locked Loops
• Precise fully digital Automatic Frequency Control (AFC) detector with integrated digital-to-analog converter

Video Processing Applications

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

Video Processing Procurement Notes

Verify the package type matches the required design, as the TDA9881 series includes both SSOP24 and HVQFN32 variants. Confirm the specific suffix corresponds to the intended reel or tape configuration if applicable. Ensure the operating temperature range aligns with the system environment, noting the TS variant is rated up to +70 °C. Cross-reference the ordering information table in the datasheet to validate the exact part number against the manufacturer's current production list.

Video Processing Selection Notes

Select this component for designs requiring an alignment-free solution for PAL and NTSC standards. The device integrates both vision and sound IF processing, reducing external component count. Consider the available logic pin configurations for selecting specific vision and sound carrier frequencies. The internal voltage stabilizer simplifies power supply requirements by regulating internal references. Evaluate the thermal characteristics if high ambient temperatures are expected in the enclosure.

Video Processing Part Context

This component belongs to the TDA9881 family of alignment-free vision and FM sound IF PLL demodulators originally developed by Philips Semiconductors. The family supports negative modulation standards including PAL and NTSC. The TS designation indicates the plastic shrink small outline package variant. These devices are designed to replace older alignment-dependent demodulators by integrating the VCO and digital acquisition circuits directly onto the chip.

Video Processing Replacement Considerations

TDA9881HN