AN7243 Просмотр технического описания (PDF) - Panasonic Corporation
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AN7243 Datasheet PDF : 7 Pages
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AN7243S
s Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Supply Voltage
VCC
Supply Current
ICC
Power Dissipation
PD
Operating Ambient Temperature
Topr
Storage Temperature
Tstg
s Recommended Operating Range (Ta=25˚C)
Parameter
Symbol
Operating Supply Voltage Range
VCC
ICs for FM/AM Tuner
Rating
Unit
9.6
V
50
mA
380
mW
–40 ~ + 80
˚C
–55 ~ + 125
˚C
Range
6.5V ~ 9.6V
s Electrical Characteristics (VCC = 8V, fin = 98MHz, 400Hz 30%Modulation, S1 : Open, Ta= 25˚C)
Parameter
Symbol
Condition
min. typ. max. Unit
S/N Ratio
Vin =17dBµ no conversion
NOUT
However, S= output at 400Hz
22
30
dB
30%conversion
Local Oscillation Output Level
VOSC
fOSC =108.7MHz
Measured by Pin4, No signal
160 250 330 mV
IF Output Level
AGC Maximum Sensitivity
AGC Level (L)
AGC Level (H)
AGC Sensitivity Variable Range
VOUT
SAGC
VAGC(L)
VAGC(H)
No modulation, Vin = 53dBµ
Input level at VAGC = 3V
Vin = 72dBµ
Vin = 58dBµ
At S1ON, difference between
input level at VAGC = 3V and
AGC maximum sensitivity
41
58
60
65
0.02
6
6.6
18
82 mV
70 dBµ
0.5
V
V
dB
ADX Drive Current
ADX Leak Current
IX(max.)
IX(leak)
Vin = 72dBµ
Vin = 63dBµ
20
mA
1
µA
s Characteristics Curve
Itot – VCC
25
20
15
10
5
0
0 2 4 6 8 10 12
VCC (V)
IF – Amp. Input/Output
Characteristics
120
100
80
60
40
IF IN
0.01µF
AN7243S
IF
OUT
0.01µF
330Ω
60
80
100
120
IF IN (MHz)
AGC Start Point Variable Axis
10
8
6.6V
6
4
AGC
Adj. R = 0
2
AGC
Adj. R = ∞
0
0 10 60 70 80 90 100 110
Vin (dBµ)
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