CXA1619AM and CXA1619AS
FM/AM radio IC
Description
CXA1619AM/AS is a one-chip FM/AM radio IC
designed for radio-cassette tape recorders and
headphone tape recorders, and has the following
functions.
CXA1619AM
CXA1619AS
Features
&127; Small number of peripheral components.
&127; Low current consumption (VCC=3 V)
For FM : ID=5.8 mA (Typ.)
For AM : ID=4.7 mA (Typ.)
&127; Built-in FM/AM select switch.
&127; Large output of AF amplifier.
EIAJ output=450 mW (Typ.) when
VCC=6 V, load impedance 8 ½
Function
FM section
&127; RF amplifier, Mixer and OSC
(incorporating AFC variable capacitor).
&127; IF amplifier
&127; Quadrature detection
&127; Tuning LED driver
AM section
&127; RF amplifier, Mixer and OSC (with RF AGC)
&127; IF amplifier (with IF AGC)
&127; Detector
&127; Tuning LED driver
AF section
&127; Electronic volume control
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