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參數(shù)資料
| 型號： | STV0056A |
| 廠商： | 意法半導體 |
| 英文描述： | Satellite Sound and Video Processor(衛(wèi)星探測和視頻處理器) |
| 中文描述： | 衛(wèi)星聲音和視頻處理器（衛(wèi)星探測和視頻處理器） |
| 文件頁數(shù)： | 10/26頁 |
| 文件大?。?/td> | 247K |
| 代理商： | STV0056A |
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
DD
P
tot
T
oper
T
stg
Parameter
Value
15
7.0
900
0, + 70
-55, + 150
Unit
V
V
mW
o
C
o
C
Supply Voltage
Total Power Dissipation
Operating Ambient Temperature
Storage Temperature
0
THERMAL DATA
Symbol
Rth(j-a)
Parameter
Value
55
Unit
o
C/W
Thermal Resistance Junction-ambient
Max.
0
DC AND AC ELECTRICAL CHARACTERISTICS
(V
CC
= 12V, V
DD
= 5V, T
amb
= 25
o
C unless otherwisespecified)
Symbol
V
CC
V
DD
IQ
CC
IQ
DD
IQLP
CC
IQLP
DD
AUDIO DEMODULATOR
FMIN
FM Subcarrier Input Level
(Pin FMIN for AGC action)
Parameter
Test Conditions
Min.
11.4
4.75
Typ.
12
5.0
55
8
27
6
Max.
12.6
5.25
70
15
35
9
Unit
V
V
mA
mA
mA
mA
Sypply Voltage
Supply Current
All audio and all video outputs
activated
All audio and all video outputs
are in high impedance mode
Supply Current at Low Power Mode
VCO locked on carrier at 6MHz
560k
load on AMPLOCK Pins
180k
load on DET Pins
8mV
≤
FMIN
≤
500mV
Carrier without modulation
V
CC
: 11.4 to 12.6V,
T
amb
: 0 to 70
o
C
5
500
mV
PP
DETH
Detector 1 and 2 (AMPLOCK Pins)
(Threshold for activating Level Detector 2)
VCO Mini Frequency
VCO Maxi Frequency
1kHz Audio Level at PLL output
(DET Pins)
2.90
3.10
3.30
V
VCOMI
VCOMA
AP50
5
MHz
MHz
V
PP
10
0.6
0.5V
50kHz dev. FM input,
Coarse deviation set to 50kHz
(Reg. 05 = 36
HEX
)
0.5V
50kHz dev. FM input,
Coarse and fine settingsused
Gain at 12kHz versus 1kHz
180k
, 82k
22pFon DET Pins
Average sink and source
current to external capacitor
1
1.35
APA50
1kHz Audio Level at PLL output
(DET Pins)
FM Demodulator Bandwidth
0.92
1
1.08
V
PP
FMBW
0
0.3
1
dB
DPCO
Digital Phase Comparator Output
Current (CPUMP Pins)
60
μ
A
AUTOMATIC NOISE REDUCTION SYSTEM
LRS
Output Level (Pins LEVEL)
LDOR
Level Detector Output Resistance
(Pins PK OUT)
NDFT
Level Detector Fall Time Constant
(Pins PK OUT)
NDLL
Bias Level (Pins PK OUT)
LLCF
Noise Reduction Cut-off Frequency at
Low Level Audio
HLCF
Noise Reduction Cut-off Frequency at
High Level Audio
1V
PP
on left and rightchannel
0.9
4.0
1
1.1
6.8
V
PP
k
5.4
External 22nF to GND and
1.2M
to V
REF
No audio in
100mV
onDET Pins, External
capacitor 330pF (FC Pins)
1V
on DET Pins, External
capacitor 330pF (FC Pins)
26.4
ms
2.40
0.85
V
kHz
7
kHz
0
STV0056A
10/26
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