TDA9889TS/V1,518

Overview

The TDA9889TS is a DVB selective AGC amplifier integrated circuit designed for terrestrial and cable TV reception. It features a 70 dB variable gain wide-band IF amplifier with AC coupling, controlled via an external voltage (0 to 3 V). The device provides a 2 V (p-p) differential low IF output for direct ADC interfacing. It includes a fully integrated synthesizer-controlled oscillator with excellent phase noise performance, supporting synthesizer frequencies for worldwide DVB standards at IF center frequencies of 36, 44, and 57 MHz. The IC operates with a 4 MHz reference frequency input or as a crystal oscillator.

Feature Summary

• Integrates a gain-controlled IF amplifier with a 70 dB control range and a tuner AGC detector featuring fast reaction time via a speed-up detector.
• Provides digital video broadcast downconversion with integrated selectivity, allowing the use of a single SAW filter in applications.
• Includes a tracking low-pass filter with reference control to guarantee sufficient suppression for neighboring picture carriers.
• Features a fully integrated synthesizer-controlled oscillator with excellent phase noise performance for precise downconversion.

Applications

• Terrestrial TV reception systems
• Cable TV reception systems
• DVB set-top boxes requiring QAM-demodulator interfacing

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the component status aligns with current manufacturing availability, as datasheets may indicate superseded versions. Ensure compatibility with the host system's logic levels and reference clock requirements before integration.

Selection Notes

Select this component for designs requiring integrated DVB downconversion and filtering without alignment. Consider the TDA9889TS over the TDA9888TS based on the specific standard switch settings required for the target region, such as Japan or Europe. Evaluate the need for the internal tuner AGC versus external control signals when choosing between the variants.

Part Context

The TDA9889TS belongs to a family of DVB selective AGC amplifiers from Philips Semiconductors, now NXP. It is functionally similar to the TDA9888TS but differs in standard switch configurations for regional DVB standards. Both devices share the same SSOP16 package and core functionality for IF signal handling in television receivers.

Replacement Considerations

The TDA9888TS is a related part within the same product specification. Verify pin compatibility and standard switch table differences before substitution. No other public confirmed substitute part numbers are available in the source material.