P3767HN is a low-power electronically tuned FM stereo radio circuit. It integrates the IF selection and demodulation network, which can be completely free of tuning, so only a small number of small-volume peripheral components are needed. SP3767HN can be used in different FM band environments in Europe, the United States and Japan. The product has the following features: • High sensitivity (using low noise RF input amplifier) • Compatible with US/Europe (87.5 to 108 MHz) and Japanese (76 to 91MHz) FM bands • Pre-tuned to receive Japanese TV audio to 108 MHz • High-amp automatic gain control (AGC) circuit • LC tuned oscillation using low-cost fixed chip • FM IF selection is completed internally, IF free tuning • Three oscillation reference frequency inputs 32.768K, 13M, 6.5M • Phase-locked loop tuning system • I2C bus mode or three-wire mode is selected by the bus mode pin • 7-bit IF count is output by the bus, and 4-bit level is output by the bus • Soft mute, stereo noise cancellation (SNC), high-level cut (HCC) • Soft mute, stereo noise cancellation (SNC), high-level cut (HCC) can be shut down by the bus • Tuning-free stereo decoder, automatic search tuning function • Standby mode • Two software programmable ports, bus input, output line tri-state mode • Automatic adjustment over temperature range (at VCCA, VCC(VCO) and VCCD = 5 V).
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