Isnin, Jun 03, 2013

Basic FM Received

FM Received Based on Single FM circuit  Using TDA7012T 

 IC TDA7012T Mini FM Received Based on Single FM circuit with explanation

Mini FM Received Circuit
TDA7021T chip radio receiver ambit is for carriageable radios, stereo as able-bodied as mono, area a minimum of ambit is important in agreement of baby ambit and low cost. It is absolutely accordant for applications application the low-voltage micro affability arrangement (MTS). The IC has a abundance bound bend (FLL) arrangement with an average abundance of 76 kHz. The selectivity is acquired by alive RC filters.
The alone action to be acquainted is the beating abundance of the oscillator. Interstation babble as able-bodied as babble from accepting anemic signals is bargain by a alternation aphasiac system.
Part List:
R1 = 8kΩ2
R2 = 10kΩ
R3 = 390Ω
C1,C3 = 10nF
C2,C6,C9,C16 = 100nF
C4 = 33pF
C5 = 25pF trimmer (Murata type TZB4Z250AB10R00)
C7,C10 = 1nF5
C8 = 820pF C11 = 1nF
C12 = 68pF
C13 = 220pF
C14 = 47μF 10V (Nichicon UWX1A470MCL1GB 5.5mmL chip type)
C15 = 3nF3
L1 = 36nH (4 turns 0.5mm silver-plated wire, inside diameter 4mm; length 7mm)
L2 = 1μH, SMD case 0805 (fres > 300 MHz)
IC1 = TDA7021T (SMD in SO16 case)

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