TDA18250BHN/C1K

Video Processing Overview

The TDA18250BHN/C1K is a silicon tuner designed for worldwide cable and terrestrial digital Set Top Boxes. It operates on a single 3.3 V supply with an RF frequency coverage up to 1 GHz (42–1002 MHz). The device features a flexible low IF output ranging from 3 MHz to 7.5 MHz and supports multi-reference clock frequencies of 16, 24, 25, 27, and 30 MHz. Typical noise figures are 3.8 dB below 862 MHz and 4.1 dB at or above 862 MHz. Power dissipation is typically 0.740 W. It includes integrated oscillators, gain control, RSSI, and temperature sensing.

Video Processing Feature Summary

• Eliminates the need for external Low-Noise Amplifiers, SAW filters, and RF splitters through fully integrated IF and RF selectivity.
• Provides enhanced ESD protection rated at 8 kV HBM on the RF input and loop-through pins.
• Offers strong immunity to wireless interferers including WLAN, GSM, and LTE signals.
• Supports dual tuner applications via an integrated Slave Tuner Output splitter.

Video Processing Applications

• Digital Cable Set Top Boxes
• Terrestrial Digital Set Top Boxes
• High Definition Digital Channel Demodulators

Video Processing Procurement Notes

Verify the specific ordering suffix /C1K against the manufacturer's current documentation to confirm package details and compliance status. Ensure the design environment matches the specified 3.3 V supply voltage and I2C interface levels. Confirm that the application requirements align with the supported reference clock frequencies and IF output range defined in the product specifications.

Video Processing Selection Notes

Select this component for designs requiring reduced external component counts by utilizing its integrated LNAs and SAW filters. It is suitable for systems needing high linearity and low noise figure across the 42 MHz to 1 GHz spectrum. Consider its compatibility with various demodulators due to the flexible low IF output range and support for multiple crystal oscillator frequencies.

Video Processing Part Context

This part belongs to the TDA18250B series of cable silicon tuners manufactured by NXP Semiconductors. It is specifically engineered to meet global digital cable and terrestrial TV reception standards while minimizing system costs. The device integrates essential tuning functions into a compact HVQFN32 package.

Video Processing Replacement Considerations

Consult official NXP documentation for verified substitute part numbers. Do not assume cross-compatibility with other tuner families without explicit manufacturer confirmation.