Simple FM radio receiver with TDA7021T Circuit
Here, the simple FM radio receiver based on single integrated circuit IC TDA7021T.
electronic components
R1 = R2 = 10 k ohms 8kΩ2
R3 = 390Ω
C1, C3 = 10nF
C2, C6, C9, C16 = 100nF C4 = 33pF
C5 = 25pF trimmer (Murata type TZB4Z250AB10R00)
C7, C10 = C8 = 820pF 1nF5
C11 = C12 = 1nF
68pF C13 = C14 = 220pF
47μF 10V (Nichicon UWX1A470MCL1GB 5.5mmL chip type)
C15 = L1 = 36nH 3nF3
(4 turns 0.5mm silver-plated wire, inside diameter 4mm, 7mm length) L2 =
1μH, SMD box 0805 (fres> 300 MHz)
IC1 = TDA7021T (SMD SO16 in box)
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