UTC KA22427
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
I-CHIP AM/FM RADIO IC
UTC KA22427 is a one-chip AM/FM radio integrated circuit
that is suitable for portable radio applications. It includes AM
amplifier, local OSC, AM mixer, AM/FM amplifier, AM AGE,
FM AGE circuit and also class b Audio Power Amplifier.
FEATURES
*Low external components count.
*Wide operating voltage : 3 - 13 V.
*Internal regulated supply for constant current operation.
*DC selection of AM/FM mode.
DIP-16
BLOCK DIAGRAM
AM IF OUT
AM/FM IN
HF GND
IF bypass
AGC
bypass
AM/FM
OUT
IF Detector IN
+Vcc
4
3
2
1
16
15
14
13
Regulator
AM/FM IF
AM HF MIXER
AM/FM
discriminato
Audio
amplifier
AM LO
5
AM local
OSC
6
AM HF IN
7
HF bypass
8
9
10
11
12
Audio Audio in Ripple
detector
Suppression
out
Audio GND
Audio power
out
ABSOLUTE MAXIMUM RATING
(Ta=25擄C)
PARAMETER
SUPPLY VOLTAGE
SUPPLY CURRENT
POWER DISSIPATION
THERMAL RESISTANCE
OPERATING TEMPERATURE
STORAGE TEMPERATURE
SYMBOL
VCC
ICC
PD
RJ-A
TOPX
TSTG
VALUE
11
44
600
100
-18~65
-40~125
UNIT
V
mA
mW
擄C/W
擄C
擄C
NOTE:Ta>25擄C, DERATE WITH 10mW/擄C UNLESS SPECIFIED.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R110-002,A
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2
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