TDA18271HD/C2,551

Video Processing Overview

The TDA18271HD/C2,551 is a silicon tuner IC designed for terrestrial analog and digital TV reception. It integrates the overall tuning function, including selectivity, and supports all worldwide analog and digital TV standards. The device delivers a low IF signal to demodulators or channel decoders. Key electrical parameters include an RF frequency range of 45 MHz to 864 MHz on the slave tuner output pin, a typical tuner noise figure of 5.5 dB, and a phase noise of -89 dBc/Hz at 1 kHz and 10 kHz offsets. Power dissipation is typically 780 mW, with a maximum input voltage of 103 dBμV at 1 dB gain compression. Digital sensitivity for DVB-T (64 QAM 2/3; BER = 2x10^-4) is -82 dBm, while analog sensitivity is 8 dBμV for 50 dB video SNR weighted.

Video Processing Feature Summary

• Fully integrated RF tracking filters and IF selectivity eliminate the need for external SAW filters.
• Supports worldwide multistandard terrestrial reception for both analog and digital TV formats.
• Includes integrated loop-through and slave tuner outputs for straightforward multi-tuner configurations.
• Operates with fully integrated oscillators requiring no external components and features alignment-free operation.

Video Processing Applications

• Hybrid analog and digital TV PCTV receivers
• DVD-R recording devices with TV capabilities
• General television applications

Video Processing Procurement Notes

Verify the specific ordering suffix /C2,551 against NXP documentation to confirm package details and RoHS compliance status. Ensure compatibility with the required I2C bus interface levels (3.3 V and 5 V microcontrollers). Confirm that the HLQFN64R package dimensions match the PCB layout requirements. Check application notes AN602, AN604, and AN605 for specific design optimization guidelines relevant to the target system.

Video Processing Selection Notes

Select this component for designs requiring a compact silicon tuner solution that replaces conventional CAN tuners. It is suitable for systems needing easy dual-tuner configuration and drastic size reduction. Consider its single 3.3 V power supply requirement and low power consumption characteristics. Verify support for the specific analog and digital standards required by the target market, such as NTSC, ATSC, or PAL variants.

Video Processing Part Context

This silicon tuner IC is part of NXP's portfolio for PC TV and broadcast receiver applications. It is often used in conjunction with system-on-chip solutions like the SAA7164E to enable simultaneous viewing and recording functions. The device targets hybrid TV applications where space constraints and power efficiency are critical design factors.

Video Processing Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

Video Processing FAQ

How is the master/slave mode configured for dual-tuner applications?

Master/slave mode is determined by applying a specific DC voltage to the XTOUT_MS pin. A voltage between 0 V and 0.1 VCC sets the tuner to Master mode, while a voltage between 0.4 VCC and 0.6 VCC sets it to Slave mode.

What crystal oscillator reference does the TDA18271HD require?

The device requires a 16 MHz crystal reference. In Master mode, the crystal connects between pins XTALP and XTALN. In Slave mode, the clock reference is provided by the Master tuner's XTOUTP and XTOUTN pins.

Does the TDA18271HD require external SAW filters?

No, the TDA18271HD features fully integrated IF selectivity, which eliminates the need for external SAW filters.