NXP® Semiconductors’s MC44S803 is a 3.3 Volt, low power, high performance, single-chip CMOS, broadband tuner. This chip offers a cost-effective, low-power solution for high-performance analog and digital TV market. This highly integrated third generation silicon tuner receives 48 MHz to 861 MHz radio frequency (RF) signals and converts them to a second intermediate frequency (IF) of 30 MHz to 60 MHz.
The single-chip broadband tuner is based on an innovative double-conversion architecture, which eliminates tracking filters and their manually aligned coils. This benefits in reduced complexity, while improving performance and reliability. Two IF outputs are provided to support systems with multiple demodulators (e.g. one digital demodulator and one analog TV demodulator).
The MC44S803 is designed to meet all Data Over Cable Service Interface Specification (DOCSISs), specifications for 64- and 256-quadrature amplitude modulation (QAM) as well as the NorDig Unified 1.0.1 specifications for orthogonal frequency-division multiplexing (COFDM) for DVB-T.
The device is available in a Pb-free 64-pin quad leadless package (QFN).