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SP3767HN
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SP3767HN ,, ,。SP3767HN 、 FM 。: • ( ) • /(87.5 to 108 MHz)(76 to 91MHz) • 108 MHz • (AGC) • LC • , • 32.768K、13M、 6.5M • • I2C • 7,4 • ,(SNC), (HCC) • ,(SNC), (HCC) •, • • ,, • ( VCCA, VCC(VCO) VCCD = 5 V).
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SP3767HN
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1 2
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
1 2 1 2 AGC
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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47nF 47nF Vref 26 25 24 23 22 MPXO TMUTE VAFR VAFL 29 LIMDEC1 28 TIFC 27 47nF LIMDEC2
33nF
33nF
R1 GAIN STABILIZATION POWER SUPPLY
Igain
32
AGND
33
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VCCA
RESONANCE AMPLIFIER LIMITER MUTE SDS DEMODULATOR SOFT
4.