NXP Semiconductors TDA9889TS/V1,518

Overview

TDA9889TS/V1,518 from NXP Semiconductors (formerly Philips) is a DVB selective AGC amplifier IC designed for terrestrial and cable TV receiver front-ends. It integrates IF amplification, downconversion, complex filtering, and synthesizer-controlled oscillator functions in a single SSOP16 package. Key confirmed parameters include 70 dB IF gain control range, 2 V (p-p) differential low-IF output, 5 V supply operation, and support for 36/44 MHz IF center frequencies per DVB standards.

For engineers reviewing the TDA9889TS/V1,518 datasheet, TDA9889TS/V1,518 pinout, TDA9889TS/V1,518 application, or TDA9889TS/V1,518 equivalent, this page delivers verified technical context, exact pin roles, real-world DVB-T/C system integration points, and validated alternative options - all grounded in the official 2004 Philips specification.

Technical Context

The TDA9889TS/V1,518 implements a fully integrated PLL-based downconverter with quadrature mixing, delivering I/Q low-IF signals (1–9 MHz) while suppressing mirror images by ~34 dB. Its gain-controlled IF amplifier uses emitter degeneration across three AC-coupled differential stages, achieving 85–90 dB maximum conversion gain and 60–70 dB control range.

It features dual-mode tuner AGC: standard peak-sync detection with adjustable TakeOver Point (via external RTOP resistor at pin TADJ), plus fast-reaction mode activated below threshold. The tracking Tschebyscheff low-pass filter is reference-synchronized and selectable via logic pins S0/S1 for 6/7/8 MHz channel bandwidths.

Key Specifications

Pinout & Package

Package: SSOP16 (SOT338-1), plastic shrink small outline, 16 leads, body width 5.3 mm, lead pitch 0.65 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DVB selective AGC amplifier applications.

Compared with TDA9888TS, TDA9889TS/V1,518 provides direct 44 MHz IF support for North American DVB-C systems, while SI2151-A10-GM eliminates the need for external IF processing entirely - making it suitable for space-constrained, software-defined receiver architectures.

Availability

TDA9889TS/V1,518 is available at Aetrix Electronics and suitable for terrestrial DVB-T receivers, cable DVB-C set-top boxes, hybrid analog/digital TV chassis, and multi-standard broadcast equipment requiring stable component supply and long-lifecycle support.

Supply support for TDA9889TS/V1,518 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 specializing in secure connectivity solutions for automotive, industrial, and consumer electronics, with deep heritage in broadcast and analog signal processing from its Philips roots.

The TDA9889TS/V1,518 belongs to NXP's legacy DVB front-end IC portfolio, engineered specifically for high-performance, low-cost digital TV receiver architectures requiring integrated IF gain control, downconversion, and filtering without external alignment.

FAQ

What is the primary function of the TDA9889TS/V1,518 in a DVB receiver system?

The TDA9889TS/V1,518 serves as a selective AGC amplifier and integrated downconverter, performing IF amplification, 36/44 MHz to 1–9 MHz downconversion, complex filtering, and synthesizer-controlled oscillation. In a DVB receiver, it conditions the intermediate frequency signal before digitization, enabling robust reception under varying signal strength and adjacent-channel interference - all within a single SSOP16 package.

Can the TDA9889TS/V1,518 operate without an external crystal?

Yes, the TDA9889TS/V1,518 can operate without an external crystal: its REF pin supports crystal oscillator mode with a 4 MHz fundamental crystal (Rxtal ≤ 200 Ω). When used this way, no external reference source is needed - the internal circuitry generates the required 500 kHz divider reference for both the downconverter and tracking filter synthesizers, as confirmed in the Functional Description section.

How does the TDA9889TS/V1,518 handle tuner AGC in hybrid analog/digital TV systems?

The TDA9889TS/V1,518 supports hybrid operation via its TAGCEXT pin and S2 logic control: when S2 is set LOW, an internal transmission gate connects TAGCEXT to TAGC, allowing external analog IF AGC voltage (e.g., from TDA9886) to directly drive the tuner. This bypasses internal AGC currents, enabling shared AGC control across analog and digital demodulation paths without additional circuitry.

What are the key differences between TDA9889TS/V1,518 and TDA9888TS?

The TDA9889TS/V1,518 and TDA9888TS share identical pinout, package, and core architecture but differ in standard-switch mapping: TDA9889TS/V1,518 supports 44 MHz IF for US DVB-C (Table 1), while TDA9888TS supports 57 MHz IF for Japanese ISDB-T (Table 2). Their S0/S1 logic combinations produce different fosc values and channel bandwidth configurations - making them non-interchangeable without firmware and filter redesign.

What is the recommended loop filter configuration for TDA9889TS/V1,518 in a 36 MHz IF, 8 MHz bandwidth European DVB-T design?

For 36 MHz IF and 8 MHz channel bandwidth (Europe), Table 4 specifies RLFS = 5.6 kΩ and CLFS = 4.7 nF for the synthesizer loop filter at pin LFS. This configuration yields a −3 dB bandwidth of 36.1 kHz and damping factor 1.22, ensuring stable PLL lock and low phase noise - directly validated in the datasheet's application circuit (Fig.12) and Quick Reference Data.