ICs for FM/AMTuner
AN7273, AN7273S
■ Pin Descriptions
Pin No.
Pin Name
FM IF Input
Pin No.
Pin Name
1
2
3
4
5
6
7
8
9
10 AM Detection Output
11 GND
AM Supply/Mute Adjustment
AM RF Input
12 FM Detection Coil
13 AF Output
AM Mixer Output
AGC Output (2)
AGC Output (1)
AM IF Input
14 VCC
15 Level Meter Output
16 AFC Output
IF By-pass
17 Reference Voltage
18 Local Oscillation Coil
IF By-pass
■ Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Rating
14.4
Unit
V
Supply Voltage
Supply Current
VCC
ICC
30
mA
1
*
*
AN7273
AN7273S
AN7273
AN7273S
AN7273
AN7273S
317
210
Power Dissipation
PD
mW
˚C
2
–20 ~ + 75
–20 ~ + 75
–55 ~ + 150
–55 ~ + 125
Operating Ambient Temperature
Storage Temperature
Topr
Tcsg
˚C
*
*
2
1
Ta = 25˚C,
Ta = 75˚C
■ Recommended Operating Range (Ta = 25˚C)
Parameter
Symbol
VCC (opr)
Range
Operating Supply Voltage Range
3 ~ 12V
■ Electrical Characteristics (VCC= 5V, Ta= 25˚C)
Parameter
Symbol
Itot
Condition
DC measurement
min.
9
typ.
14
max.
20
Unit
mA
mV
dBµ
dBµ
V
Total Circuit Current
Vi =80dBµ
Demodulation Output Level
Limiting Sensitivity
VO
75
100
46
125
49.5
73
Input at VO = –3dB
Input at VO =more than –20dB
Vi =70dBµ
Vi (lim)
Vi (Mute)
V15–11
V15–11
Itot
43.5
55
FM
Muting Sensitivity
64
Level Meter Driving Output (1)
Level Meter Driving Output (2)
Total Circuit Current
0.61
1.14
8
0.8
1.26
13
1.1
Vi =100dBµ
1.42
19
V
DC measurement
Vi =80dBµ
mA
mA
dBµ
mV
V
VO
Detection Output Level
Max. Sensitivity
60
80
100
15
Smax.
V15–11
V15–11
Input at VO =10mV
Vi = –10dBµ
AM
4
9.5
Level Meter Driving Output (1)
Level Meter Driving Output (2)
0
130
1.38
Vi =80dBµ
1.12
1.25
Note) Unless otherwise specified, fi =10.7MHz, Mod. = 22.5kHz, fm = 400Hz (FM)
fi =1MHz, Mod. = 30%, fm = 400Hz (AM)
PANASONIC [ PANASONIC ]
