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CXA1019 FM Radio Circuit Diagram

2017-12-21 03:25  
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sony cxa 1019s radio


CXA1019 FM RADIO

CXA1019 is a one-chip FM/AM radio IC designed for radio-cassette tape recorders and headphone tape recorders, and CXA1019S has the following functions.

CXA1019 Features

Small 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 section

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

CXA1019 Structure

Bipolar silicon monolithic IC

cxa1019s ic fm radio circuit diagram, cxa1019, cxa

PARTS LIST
R1100KΩ
R22.2KΩ
VR150KΩ Volume Control
D1Red Colour LED (Tuning Indicator)
C115pF
C24.7μF
C34pF
C40.02μF
C522pF
C620pF
C7100pF
C822pF
C90.01μF
C10220μF
C114.7μF
C1210μF
C131μF
C140.27μF
C151000pF
C16100μF
C170.1μF
C18100μF
FM T/CFM Tuning Capacitor (15-30pF)
IFOrange Colour FM IF Transformer
CF110.7 MHz FM Ceramic Filter
L12? (2.75) Turns of 22 swg enamelled copper wire close-wound on a 5mm diameter.
L23? (3.75) Turns of 22 swg enamelled copper wire close-wound on a 5mm diameter.
AerialTelescopic Aerial OR 100cm Circuit Wire
SP2W 8Ω Speaker
ICCXA1019 s
SONY CXA1019S

SONY CXA1019S

Block diagram

Block diagram

TUNING CAPACITOR

FM Tuning Capacitor with AMFM Tuning Capacitor (15pf-40pf) with AM
In this circuit diagram we have mention about FM tuning side only.When we assemble the Tuning Capacitor, we must be careful to select correct? side of? tuning capacitor.Normally in the FM side of the tuner middle pin and other? pin capacitance will be nearly 15pF? to 40pF.
Middle pins: B and F, FM side:A,B, C? in this photo.
FM Ceramic Filter 10.7 MHz

10.7 MHz Ceramic Filter

CXA1019 TUNING COILS

cxa 1019 fm radio tuning coil L1cxa 1019 fm radio tuning coil L2
2? (2.75) Turns of 22 swg enamelled copper wire close-wound on a 5mm diameter.3? (3.75) Turns of 22 swg enamelled copper wire close-wound on a 5mm diameter.

IF Transformer

Orange Colour  FM IF Transformer topIF Transformerfm radio if transformer 5 pin
1 and 3 pins used to? this circuit.


CXA1019 PCB

cxa 1019 PCB Design, pattern diagram

PCB Design

cxa 1019s parts arrangement diagram

parts arrangement diagram

width=7.95 cm
Height=4.90 cm
width


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