STV8225 Просмотр технического описания (PDF) - STMicroelectronics
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STV8225 Datasheet PDF : 6 Pages
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STV8225
BLOCK DIAGRAM
Mean
Capacitor
13
Level VCC
Switch
4 12
14
IF INPUT
1
AGC
2
AGC
Capacitor
MUTE
LOGIC
CONT
3
10
6
Switching Mute
Input Input
STV8225
A
B
7
SW1
C
5
A
9
SW2
11
Main Sound Output
FM Sound Input
External Sound Output
External Sound Input
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Tstg
Toper
Ptot
Supply Voltage
Storage Temperature
Operating Temperature
Power Dissipation
Parameter
Value
13
-40, +150
0, +70
0.35
Unit
V
oC
oC
W
THERMAL DATA
Symbol
Rth (j-a)
Parameter
Junction-ambient Thermal Resistance
Max.
Value
90
Unit
oC/W
ELECTRICAL CHARACTERISTICS (VCC = 9V, VIN = 10mVRMS, fSC = 32.4MHz, fM = 1kHz,
m = 54% modulation depth, Audio BW = 40Hz to 15kHz, Tamb = 25oC, unless otherwise specified)
Symbol
VCC
ICC
Parameter
Supply Voltage
Supply Current
Supply Voltage Rejection
IF AMPLIFIER
Test Conditions
Pin 12
Pin 12
Pins 9, 7, 12 - VRipple = 0.5VPP, f = 100Hz
Min.
8
45
Typ.
9
20
53
Max.
10
30
Unit
V
mA
dB
Ri 1, 14
Ci 1, 14
VIF min
VIF max
DAV
lAGC
Input Resistance (Pins 1-14)
Input Capacitance (Pins 1-14)
Minimum IF Input Signal
Maximum IF Input Signal
AGC Range
Maximum AGC Output Current
(Pin 2)
IF Bandwidth
Resistance between Pin 1 and 14
Capacitance between Pin 1 and 14
IF input signal for VOUT = VNOM - 3dB
IF input signal for VOUT = VNOM + 1dB
DAV = VIF max / VIF min
Charging and discharging
-3dB
2
kΩ
2
pF
70
µVRMS
75
mVRMS
61
dB
±35 ±50 ±65 µA
50
MHz
2/6
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