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參數(shù)資料
| 型號： | STV8225 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | AM SIF CIRCUIT |
| 中文描述： | 上午應(yīng)力強(qiáng)度因子電路 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 90K |
| 代理商： | STV8225 |
1
2
3
5
6
7
10
11
14
AGC
Capacitor
Switching
Input
Mute
Input
IF INPUT
AGC
4
12
13
V
CC
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
8
BLOCK DIAGRAM
ABSOLUTE MAXIMUMRATINGS
Symbol
V
CC
T
stg
T
oper
P
tot
Parameter
Value
13
-40, +150
0, +70
0.35
Unit
V
o
C
o
C
W
Supply Voltage
Storage Temperature
Operating Temperature
Power Dissipation
8
THERMAL DATA
Symbol
R
th (j-a)
Parameter
Value
90
Unit
o
C/W
Junction-ambient Thermal Resistance
Max.
8
ELECTRICALCHARACTERISTICS
(V
CC
= 9V, V
IN
= 10mV
RMS
, f
SC
= 32.4MHz, f
M
= 1kHz,
m = 54% modulation depth, AudioBW = 40Hz to 15kHz, T
amb
= 25
o
C, unless otherwise specified)
Symbol
V
CC
I
CC
Parameter
Test Conditions
Min.
8
Typ.
9
20
53
Max.
10
30
Unit
V
mA
dB
Supply Voltage
Supply Current
Supply Voltage Rejection
Pin 12
Pin 12
Pins 9, 7, 12 - V
Ripple
= 0.5V
PP
, f = 100Hz
45
IF AMPLIFIER
Ri 1, 14
Ci 1, 14
VIF min
VIF max
DAV
l
AGC
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 Pin1 and 14
Capacitance between Pin 1and 14
IF input signal for V
OUT
= V
NOM
- 3dB
IF input signal for V
OUT
= V
NOM
+ 1dB
DAV = VIF max / VIF min
Charging and discharging
2
2
k
pF
70
75
61
±
50
μ
V
RMS
mV
RMS
dB
μ
A
±
35
±
65
-3dB
50
MHz
8
STV8225
2/6
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