Transcript
UTC KA22427
LINEAR INTEGRATED CIRCUIT
I-CHIP AM/FM RADIO IC DESCRIPTION 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/FM IN
AM IF OUT
HF GND
4
3
2
IF bypass
AGC bypass
1
16
AM/FM OUT
15
AM/FM IF
IF Detector IN
14
AM/FM discriminato
AM HF MIXER
+Vcc
13 Regulator
Audio amplifier AM LO
5 AM local OSC
6 AM HF IN
7 HF bypass
8
9
10
Audio Audio in Ripple Suppression detector out
11
12
Audio GND Audio power out
ABSOLUTE MAXIMUM RATING(Ta=25°C) PARAMETER
SYMBOL
VALUE
UNIT
SUPPLY VOLTAGE
VCC
11
V
SUPPLY CURRENT
ICC
44
mA
POWER DISSIPATION
PD
600
mW
THERMAL RESISTANCE
RJ-A
100
°C/W
OPERATING TEMPERATURE
TOPX
-18~65
°C
STORAGE TEMPERATURE
TSTG
-40~125
°C
NOTE:Ta>25°C, DERATE WITH 10mW/°C UNLESS SPECIFIED.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R110-002,A
UTC KA22427
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS PARAMETER Quiescent Circuit
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ICCQ
SW1→FM,VCC=3V
7
12
17
mA
SW1→FM,VCC=9V
10
17
23
V16(FM)
SW1→FM,ICC=42mA
2.0
2.4
3.1
VIN(lim)
SW1→FM,VCC=5.5V,-3dB
Current Pin 16 Terminal
V
Voltage Limiting Voltage
57
dBµV
V16=2.4V,VR=Min. Internal Regulated
VCC
SW1→AM,ICC=42mA
12.5
13.2
14.0
V
1.9
V
Voltage Pin 16 Voltage
V16(AM)
SW1→AM,VCC=9V
1.4
Signal to Noise
VO
SW1→AM,VCC=12V,VIN=37dB
1.5
3.0
V
15
20
dB
Ratio
SW2→45Ω,V16=1.4V
Maximum Sensitivity
S/N
SW1→AM,VCC=5.5V, SW2→8Ω,VIN=37.5dB
Power Output
POUT
SW2→8Ω,VCC=5.5V,f=1KHZ VR=Min.
Total Harmonic
THD
W
SW2→45Ω,ICC=42mA,f=1KHZ
Distortion Voltage Gain
0.28
THD=10%
VR=Min. GV
0.5
4.0
%
VOUT=2V
SW2→8Ω,VCC=5.5V,f=1KHZ
40
dB
VR=Min.
INPUT - OUTPUT IMPEDANCE(Ta=25°C,VCC=6V) SYMBOL
TEST CONDITIONS
Pin 2 Input ( AM )
PARAMETER
Rip2(AM)
f=465KHZ
MIN
TYP 200
MAX
UNIT
Impedance ( AM )
Cip2(AM)
f=465KHZ
3
pF
Pin 2 Input ( FM )
Rip2(FM)
f=10.7MHZ
30
KΩ
Impedance（FM）
KΩ
Cip2(FM)
f=10.7MHZ
3.5
pF
Pin 4 Output
Rop4
f=465KHZ
300
KΩ
Impedance
Cop4
f=465KHZ
6
pF
Pin 6 Input
Rip6
f=1MHZ
50
KΩ
Impedance
Cip6
f=1MHZ
5
pF
Pin 14 Input ( AM )
Rip14(AM)
f=465KHZ
300
KΩ
Impedance（AM）
Cip14(AM)
f=465KHZ
3.5
pF
Pin14 Input ( FM )
Rip14(FM)
f=10.7MHZ
300
KΩ
Impedance（FM）
Cip14(FM)
f=10.7MHZ
4
pF
Pin15 Output ( AM )
Rop15(AM)
f=465KHZ
300
KΩ
Impedance（AM）
Cop15(AM)
f=465KHZ
5.5
pF
Pin15 Output ( FM )
Rop15(FM)
f=10.7MHZ
300
KΩ
Impedance（FM）
Cop15(FM)
f=10.7MHZ
6
pF
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R110-002,A
UTC KA22427
LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
0.047 µF
V13 1
220pF
470 µF
V16
Vcc Icc
6
2 3
4
OUTPUT 470 µF
4
1.2kΩ
3
220 µF
GND
10pF AM
45Ω
4.7kΩ
1
6
SW1
8Ω
1
6
3 2
FM
470 µF
2 4
SW2
16
15
14
13
12
11
0.001 µF
10
9
UTC KA22427
22kΩ
Rg=50Ω
HF SIGNAL
~
1
2
3
4
5
6
7
8 3.3 µF
0.022 µF 1
6
3
4
4
6
6
3
2 3
4
4
3
2pF
~
1
50次
1
0.047 µF
51pF 220pF
50Ω
2
Rg=600Ω
AUDIO SIGNAL
2
2
680pF
5kΩ
0.01 µF
6
1
0.022 µF 0.022 µF
FM AM
FM IF INOUT
SW1
AM HF INPUT
VOD
INPUT
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R110-002,A
