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BCM4354 датащи(PDF) 136 Page - Cypress Semiconductor |
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BCM4354 датащи(HTML) 136 Page - Cypress Semiconductor |
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136 / 192 page ![]() FM Receiver Specifications BCM4354 Data Sheet BROADCOM CONFIDENTIAL Broadcom® October 15, 2014 • 4354-DS109-R Page 135 Section 16: FM Receiver Specifications Unless otherwise stated, limit values apply for the conditions specified inTable 30: “Environmental Ratings,” on page 126 and Table 32: “Recommended Operating Conditions and DC Characteristics,” on page 127. Typical values apply for an ambient temperature +25°C. Note: Values in this data sheet are design goals and are subject to change based on the results of device characterization. Table 37: FM Receiver Specifications Parameter Conditionsa Minimum Typica l Maximum Units RF Parameters Operating frequencyb Frequencies inclusive 65 – 108 MHz Sensitivityc FM only SNR ≥ 26 dB –0 – dBµV EMF –1 – µV EMF – –6 – dBuV Receiver adjacent channel selectivityc,d Measured for 30 dB SNR at the audio output. Wanted Signal: 23 dBµV EMF (14.1 µV EMF), at ± 200 kHz. –51 – dB At ± 400 kHz – 62 – dB Intermediate signal plus noise-to-noise ratio (S+N)/ N, stereoc Vin = 20 dBµV EMF (10 µV EMF) 45 53 – dB Intermodulation performancec,d Blocker level increased until desired at 30 dB SNR Wanted Signal: 33 dBµV EMF (45 µV EMF) Modulated Interferer: At fWanted ±400 kHz and ±4 MHz CW Interferer: At fWanted ± 800 kHz and ±8 MHz –55 – dBc AM suppression, monoc Vin = 23 dBµV EMF (14.1 µV EMF) AM at 400 Hz with m = 0.3 No A-weighted or any other filtering applied. 40 – – dB |
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