VHF FM receiver on the KXA060 chip. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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VHF FM receiver on the KXA060 chip. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / radio reception

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The KXA060 microcircuit is an analogue of the KXA058 assembly, it contains a double balanced mixer and an APCG circuit, which makes it possible to assemble on its basis the simplest VHF FM receiver for two bands - 66-73 MHz and 98-107 MHz.

VHF FM receiver on the chip KHA060

R1 - 30 kOhm
R2 - 180 kOhm
R3 - 220 kOhm
R4 - 47 kOhm
R5, R6 - 2 kOhm
R7 - 100 kOhm
R8 - 10 kOhm

C1 - 47 pF C2, C9, C10, C12 - 3n3 C3, C11 - 180 pF C4, C14, C16 - 0,1 uF C5, C15 - 330 pF C6 - 220 pF C7, C13 - 10n C8 - 47,0 x 6,3 V C17, C18, C21, C22 - 20,0 x 6,3 V C19, C20 - 100,0 x 6,3 V C23 - 18 pF	at Upit = 6 V: R9 - 220 Ohm R10 - 0 Ohm R11 - 350 Ohm at Upit = 9 V: R9 - 510 Ohm R10 - 680 Ohm R11 - 360 Ohm

VD1 - KV102A VD2 - KD521G VD3 - AL307BM VD4 - KS133G	VT1 - KT3107A BA1 - R = 4...20 Ohm SW1 - "Power on" SW2 - "Range"	L1 - 5 turns dia. 6 mm; wire PEV-1 0,6; branch from the 2nd turn

Author: K.S. Selin, Ukraine, Zhitomir; Publication: cxem.net

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