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STV8225 数据表(PDF) 2 Page - STMicroelectronics

部件名 STV8225
功能描述  AM SIF CIRCUIT
PDF  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV8225 数据表(HTML) 2 Page - STMicroelectronics

  STV8225 Datasheet HTML 1Page - STMicroelectronics STV8225 Datasheet HTML 2Page - STMicroelectronics STV8225 Datasheet HTML 3Page - STMicroelectronics STV8225 Datasheet HTML 4Page - STMicroelectronics STV8225 Datasheet HTML 5Page - STMicroelectronics STV8225 Datasheet HTML 6Page - STMicroelectronics  
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background image
1
23
5
6
7
10
11
14
AGC
Capacitor
Switching
Input
Mute
Input
IF INPUT
AGC
412
13
VCC
Level
Switch
Mean
Capacitor
MUTE
LOGIC
CONT
SW1
A
B
SW2
C
A
9
Main Sound Output
FM Sound Input
External Sound Output
External Sound Input
STV8225
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
13
V
Tstg
Storage Temperature
-40, +150
oC
Toper
Operating Temperature
0, +70
oC
Ptot
Power Dissipation
0.35
W
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth (j-a)
Junction-ambient Thermal Resistance
Max.
90
oC/W
ELECTRICAL CHARACTERISTICS (VCC =9V, VIN = 10mVRMS,fSC = 32.4MHz, fM = 1kHz,
m = 54% modulation depth, Audio BW = 40Hz to 15kHz, Tamb =25
oC, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ. Max.
Unit
VCC
Supply Voltage
Pin 12
8
9
10
V
ICC
Supply Current
Pin 12
20
30
mA
Supply Voltage Rejection
Pins 9, 7, 12 - VRipple = 0.5VPP, f = 100Hz
45
53
dB
IF AMPLIFIER
Ri 1, 14
Input Resistance (Pins 1-14)
Resistance between Pin 1 and 14
2
k
Ω
Ci 1, 14
Input Capacitance (Pins 1-14)
Capacitance between Pin 1 and 14
2
pF
VIF min
Minimum IF Input Signal
IF input signal for VOUT =VNOM - 3dB
70
µVRMS
VIF max
Maximum IF Input Signal
IF input signal for VOUT =VNOM + 1dB
75
mVRMS
DAV
AGC Range
DAV = VIF max / VIF min
61
dB
lAGC
Maximum AGC Output Current
(Pin 2)
Charging and discharging
±35
±50
±65
µA
IF Bandwidth
-3dB
50
MHz
STV8225
2/6



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