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27   Tuesday   NOV 2012

POSTED BY ELECTRONICBOY IN CIRCUIT DIAGRAM, ELECTRONIC COMPONENTS

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Circuit Diagram, components, CXA1019, CXA1019 FM Radio, ic

Let us discuss about CXA1019 FM Radio Circuit Diagram, it is a one‐chip FM/AM radio IC designed for radio‐cassette tapereconrders and headphone tape recorders, and CXA1019S has the following functions.

CXA1019 FM RADIO

CXA1019 FeaturesSmall number of peripheral components.Low current consumption (Vcc=3V)For FM: I0=5.3 mA (Typ.)Large output of AF amplifier.Vcc=6V, EIAJ output=500mW (Typ.) when load impedance 8Ω.

Functions FM sectionRF amplifier, Mixer and OSC (incorporating AFC variable capacitor).IF amplifierQuadrature detectionTuning LED driver

CXA1019 StructureBipolar silicon monolithic IC

About these ads

CXA1019 FM Radio Circuit Diagram | Electronic Boy for you http://electronicboy4you.wordpress.com/2012/11/27/cxa1019-fm-radio-c...

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PARTS   LISTR1          100KΩR2          2.2KΩVR1        50KΩ Volume ControlD1          Red Colour LED (Tuning Indicator)C1          15pFC2          4.7μFC3          4pFC4          0.02μFC5         22pFC6         20pFC7         100pFC8          22pFC9          0.01μFC10        220μFC11        4.7μFC12        10μFC13        1μFC14        0.27μFC15        1000pFC16        100μFC17         0.1μFC18        100μF

FM T/C    FM Tuning Capacitor (15‐30pF)IF            Orange Colour FM IF TransformerCF1        10.7 MHz FM Ceramic FilterL1           2? (2.75) Turns of 22 swg enamelled copper wire close‐wound on a 5mm diameter.L2           3? (3.75) Turns of 22 swg enamelled copper wire close‐wound on a 5mm diameter.Aerial      Telescopic Aerial OR 100cm Circuit WireSP           2W 8Ω Speaker

IC             CXA1019 s

CXA1019 FM Radio Circuit Diagram | Electronic Boy for you http://electronicboy4you.wordpress.com/2012/11/27/cxa1019-fm-radio-c...

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SONY CXA1019S

Block diagram

TUNING CAPACITORIn this circuit diagram we have mention about FM tuning side only.When we assemble the Tuning Capacitor, we must be careful toselect correct? side of? tuning capacitor.Normally in the FM side of the tuner middle pin and other? pin capacitance will be nearly15pF? to 40pF.Middle pins: B and F, FM side:A,B, C? in this photo.

CXA1019 FM Radio Circuit Diagram | Electronic Boy for you http://electronicboy4you.wordpress.com/2012/11/27/cxa1019-fm-radio-c...

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10.7 MHz Ceramic Filter

CXA1019 TUNING COILS2? (2.75) Turns of 22 swg enamelled copper wire close‐wound on a 5mm diameter.    3? (3.75) Turns of 22 swg enamelled copper wireclose‐wound on a 5mm diameter.

IF Transformer       

1 and 3 pins used to? this circuit.

CXA1019 PCB

PCB Design

CXA1019 FM Radio Circuit Diagram | Electronic Boy for you http://electronicboy4you.wordpress.com/2012/11/27/cxa1019-fm-radio-c...

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parts arrangement diagramwidth=7.95 cmHeight=4.90 cm

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CXA1019 FM Radio Circuit Diagram | Electronic Boy for you http://electronicboy4you.wordpress.com/2012/11/27/cxa1019-fm-radio-c...

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