NXP Semiconductors TDA9887TS/V4,112

Overview

TDA9887TS/V4,112 from NXP Semiconductors (formerly Philips Semiconductors) is an I²C-controlled multistandard alignment-free IF-PLL demodulator with integrated FM radio capability. It performs synchronous vision and sound demodulation for PAL, SECAM, and NTSC standards, supports VIF frequencies from 33.4 MHz to 58.75 MHz, delivers 2 V_p-p composite video output, and provides FM-PLL demodulation at 10.7 MHz for TV tuner applications.

For engineers reviewing the TDA9887TS/V4,112 datasheet, TDA9887TS/V4,112 pinout, TDA9887TS/V4,112 application, or TDA9887TS/V4,112 equivalent, key selection considerations include multistandard VIF/SIF gain control range (66 dB), digital AFC resolution (4-bit DAC), I²C-programmable TakeOver Point (TOP), integrated sound carrier traps (4.5–6.5 MHz), and SSOP24 package compatibility with legacy TV signal processing designs.

Technical Context

The TDA9887TS/V4,112 integrates dual PLL architectures: a vision IF-PLL with digitally assisted acquisition across six standard-specific VIF frequencies (33.4/33.9/38.0/38.9/45.75/58.75 MHz), and a narrow-band FM-PLL operating at 4–7 MHz for radio demodulation. Its VIF amplifier uses AC-coupled differential stages with emitter-degeneration gain control, while the FM-PLL employs a relaxation oscillator with external loop filter for 100 kHz selectivity.

Functional integration includes a single-reference QSS mixer supporting both intercarrier and Hi-Fi stereo modes, synchronous AM demodulation without external reference, and fully digital AFC with 4-bit DAC output readable via I²C. The device uses a shared 4 MHz crystal/reference input (pin REF) to derive VIF-VCO and FM-VCO clocks, enabling alignment-free operation across TV and FM radio functions.

Key Specifications

Pinout & Package

Package: SSOP24 - plastic shrink small outline package, 24 leads, body width 5.3 mm (SOT340-1), suitable for high-density TV mainboard layouts with thermal performance matching SO24 but reduced footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar IF-PLL demodulator applications.

Compared with TDA9887TS/V4,112, the TDA9886TS/V4 omits FM radio and offers fewer VIF standards, while the LA76818 shifts architecture toward digital signal processing at the expense of analog flexibility - making TDA9887TS/V4,112 uniquely suited for alignment-free multistandard analog TV/FM hybrid systems.

Availability

TDA9887TS/V4,112 is available at Aetrix Electronics and suitable for TV broadcast receivers, VCR/STB signal processing, and embedded FM radio tuner modules requiring stable component supply, long-lifecycle support, and drop-in replacement capability for legacy Philips/NXP designs.

Supply support for TDA9887TS/V4,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and consumer applications, with deep heritage in analog TV signal processing from its Philips Semiconductors roots.

The TDA9887TS/V4,112 belongs to NXP's legacy TV demodulator product line, designed specifically for multistandard analog broadcast reception with emphasis on alignment-free operation, I²C configurability, and integrated FM radio capability in compact packages.

FAQ

What is the primary function of the TDA9887TS/V4,112 in a TV signal chain?

The TDA9887TS/V4,112 serves as the core IF-PLL demodulator in analog TV receivers, performing synchronous vision and sound demodulation for PAL, SECAM, and NTSC standards. It processes VIF and SIF signals, generates composite video (CVBS), recovers FM/AM audio, implements sound carrier trapping, and supports FM radio demodulation at 10.7 MHz - all without manual alignment. Its I²C interface enables full configuration of demodulation parameters, making TDA9887TS/V4,112 essential for multistandard broadcast reception.

Does the TDA9887TS/V4,112 require external crystals or oscillators?

The TDA9887TS/V4,112 accepts a 4 MHz reference signal at pin REF, which can be supplied either by an external crystal oscillator circuit or directly from a PLL tuning system. Pin REF supports 1-pin crystal operation - connecting a 4 MHz crystal between REF and ground, with optional load capacitors, enables self-contained oscillator functionality. This eliminates the need for separate clock generators and simplifies board design, confirming that TDA9887TS/V4,112 operates with minimal external timing components.

How does the TDA9887TS/V4,112 handle different TV broadcast standards?

The TDA9887TS/V4,112 supports PAL, SECAM, and NTSC standards through I²C-programmable VIF frequency selection (33.4/33.9/38.0/38.9/45.75/58.75 MHz), configurable sound carrier traps (4.5/5.5/6.0/6.5 MHz), and standard-specific digital acquisition help. Its VIF-AGC detector automatically switches between sync-level (negative modulation) and peak-white (positive modulation) detection, while the gated phase detector optimizes L/L' standard performance. These features ensure TDA9887TS/V4,112 delivers compliant video fidelity and audio recovery across global broadcast variants without hardware changes.

Can the TDA9887TS/V4,112 be used for FM radio reception?

Yes, the TDA9887TS/V4,112 includes dedicated FM radio functionality via its radio mode. It converts first IF signals (33.3 MHz for PAL/SECAM or 41.3 MHz for NTSC) to 10.7 MHz using the internal QSS mixer and VIF-VCO synthesizer, then demodulates the resulting FM signal with its narrow-band FM-PLL. Pin FMIN accepts the RIF input, and the FM-PLL provides AFC output at pin AFC plus auto-mute based on digital acquisition window monitoring - confirming TDA9887TS/V4,112 is a true hybrid TV/FM demodulator.

What package type is used for the TDA9887TS/V4,112?

The TDA9887TS/V4,112 uses the SSOP24 package (SOT340-1): a plastic shrink small outline package with 24 leads and 5.3 mm body width. This package provides higher pin density than the SO24 variant while maintaining thermal and electrical compatibility, making it ideal for space-constrained TV mainboards. The pinout matches the TDA9887T series but in a smaller footprint - ensuring TDA9887TS/V4,112 is a direct layout-compatible upgrade for existing designs using the SO24 version.