TDA18250HN/C1,551

Video Processing Overview

The TDA18250HN/C1,551 is a silicon tuner IC designed for high definition cable Set-Top Boxes (STB) supporting single streaming. It covers worldwide digital cable standards when used with a digital channel demodulator. The device operates on a single 3.3 V power supply and features an RF frequency coverage up to 1002 MHz. Key electrical parameters include a maximum input power of 6 dBµV, a tuner noise figure of 5.5 dB at frequencies above 862 MHz, and phase noise of -105 dBc/Hz at 100 kHz offset. Power dissipation is typically 0.91 W.

Video Processing Feature Summary

• Eliminates the need for external low-noise amplifiers and Surface Acoustic Wave (SAW) filters through fully integrated IF selectivity and enhanced RF/IF filtering.
• Supports PVR applications by providing one RF output specifically designed to drive a slave tuner.
• Integrates oscillators completely, requiring no external oscillator components, while offering a 16 MHz crystal oscillator output buffer for single crystal setups.

Video Processing Applications

• High definition cable Set-Top Boxes (STB)
• Single streaming digital cable reception systems
• Personal Video Recorder (PVR) boxes

Video Processing Procurement Notes

Verify the specific ordering suffix /C1,551 against the manufacturer's current documentation to confirm package type and lead-free manufacturing status. Ensure compatibility with I2C-bus interfaces operating at 3.3 V microcontroller levels. Confirm that the application environment does not exceed the absolute maximum ratings defined in the limiting values section.

Video Processing Selection Notes

Select this component for designs requiring reduced Bill Of Materials (BOM) by removing external SAW filters and LNAs. It is suitable for systems needing alignment-free operation and efficient PCB design. Verify that the system requires a single 3.3 V supply and supports Low IF (LIF) output architectures compatible with standard digital demodulators.

Video Processing Part Context

This part belongs to the TDA18250HN series of cable silicon tuners manufactured by NXP Semiconductors. It is packaged in a plastic thermal enhanced very thin quad flat package (HVQFN48) with 48 terminals. The device is classified as a non-automotive qualified product intended for consumer electronics applications.

Video Processing Replacement Considerations

Consult official NXP documentation for confirmed substitute part numbers. No public substitutes are listed in the provided source material.