Infineon Technologies KTS 6027-2

Overview

KTS6027-2 from Infineon Technologies is a 5 V, 2-band TV tuner integrated circuit combining a digitally programmable PLL synthesizer, dual-band mixer-oscillator (LOW/MID and HIGH), unbalanced IF amplifier, and I²C interface - operating up to 1024 MHz with 31.25 kHz frequency step resolution, 75 Ω IF output impedance, and short lock-in time for NTSC/ATSC terrestrial TV and CATV set-top tuners.

For engineers reviewing the KTS6027-2 datasheet, KTS6027-2 pinout, KTS6027-2 application, or KTS6027-2 equivalent, key selection criteria include its dual-band RF input architecture (high-Z for LOW/MID, low-Z for HIGH), programmable reference dividers (24/64/80/128), charge pump current selection, fast I²C bus support, and integrated bandswitch buffers - all critical for tuner design validation and system-level integration.

Technical Context

The KTS6027-2 implements a fully integrated PLL-based frequency synthesis architecture with a 4 MHz crystal reference, supporting four selectable chip addresses and programmable reference divider ratios to generate precise VCO tuning voltages up to 1024 MHz. Its mixer-oscillator block features two independent balanced oscillators and two dedicated mixer inputs - one high-impedance for LOW/MID band (45–300 MHz), one low-impedance for HIGH band (470–862 MHz).

The IF amplifier delivers single-ended 75 Ω output with gain programmability via external components, while the PLL includes lock-in flag reporting, power-down reset, and four programmable charge pump currents (1.2 mA, 2.4 mA, 3.6 mA, 4.8 mA) to optimize loop stability and phase noise performance (−85 dBc/Hz min at 10 kHz offset).

Key Specifications

Pinout & Package

Package: P-TSSOP-28-1 (28-pin thin shrink small outline package, 0.65 mm pitch, exposed thermal pad).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar TV tuner synthesizer applications.

Compared with MAX2108ETJ+ and TDA6651AT, the KTS6027-2 uniquely balances legacy NTSC compatibility (via high-Z VHF input), ATSC readiness (UHF band support), and firmware flexibility (I²C + programmable dividers/charge pump), making it optimal for transitional tuner designs requiring both analog and digital broadcast support.

Availability

KTS6027-2 is available at Aetrix Electronics and suitable for NTSC TV tuners, ATSC digital TV receivers, and CATV set-top boxes requiring stable component supply, long-lifecycle availability, and consistent electrical performance across production batches.

Supply support for KTS6027-2 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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, RF, automotive, and security ICs, with global manufacturing and R&D centers.

The KTS6027-2 belongs to Infineon's Wireless Components product line, designed specifically for high-performance, cost-optimized TV and VCR tuner applications requiring integrated PLL synthesis, dual-band RF processing, and robust ESD protection.

FAQ

What is the maximum VCO tuning voltage supported by the KTS6027-2?

The KTS6027-2 provides a high-voltage VCO tuning output rated up to 30 V, enabling direct drive of standard varactor diodes used in broadband tuner front-ends without external level-shifting circuitry. This specification is confirmed in Section 5.1.2 (Operating Range) of the July 2001 datasheet, and aligns with typical UHF VCO tuning requirements for CATV and terrestrial TV applications.

Does the KTS6027-2 support both analog and digital TV standards simultaneously?

Yes - the KTS6027-2 supports NTSC (analog) and ATSC (digital) standards through its dual-band RF architecture and programmable PLL. It covers 45–300 MHz (VHF) and 470–862 MHz (UHF) bands, and its 31.25 kHz frequency step resolution satisfies channel spacing requirements for both standards, as documented in Section 2.1 and Table 5-1 of the datasheet.

How many I²C addresses does the KTS6027-2 support, and how are they selected?

The KTS6027-2 supports four selectable I²C slave addresses, configured via two address pins (A0, A1) on the device. These pins accept logic-high or logic-low levels to select from addresses 0x60, 0x62, 0x64, or 0x66 - enabling multiple KTS6027-2 units on the same bus, as specified in Section 3.4.4 and Table 5-2 of the July 2001 datasheet.

Is an external crystal required, and what frequency is specified?

Yes - the KTS6027-2 requires a 4 MHz fundamental-mode quartz crystal connected to XIN/XOUT pins. This crystal serves as the PLL reference source and is explicitly stated in Section 2.1 and Figure 3-15 (Block Diagram) of the datasheet. The device does not support external clock input or higher-frequency crystals without modification.