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TDA7478 数据表(PDF) 5 Page - STMicroelectronics

部件名 TDA7478
功能描述  Single chip RDS demodulator
Download  11 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7478 数据表(HTML) 5 Page - STMicroelectronics

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TDA7478
Electrical specifications
Doc 10679 Rev 3
5/11
2
Electrical specifications
2.1
Thermal data
2.2
Absolute maximum ratings
2.3
Electrical characteristics
Tamb = 25°C, VS = 5V, unless otherwise specified.
Table 3.
Thermal data
Symbol
Description
Value
Unit
Rth j-case
Thermal resistance junction-to-case
Max.
200
°C/W
Table 4.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
VS
Supply voltage
-0.3 to 7
V
Top
Operating temperature range
-40 to 85
°C
Tstg
Storage temperature
-55 to 150
°C
Table 5.
Electrical characteristics
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VS
Supply voltage
-
4.5
5
5.5
V
IS
Supply current
-
-
7.5
12.0
mA
Filter
fC
Center frequency
-
56.6
57
57.4
kHz
BW
3 dB bandwidth
-
2.5
3
3.5
kHz
G
Gain
f = 57 kHz
17
20
23
dB
A
Attenuation
Δf ± 4 kHz
-
22
-
dB
f = 38 kHz
-
60
-
dB
f = 67 kHz
-
45
-
dB
RI
Input impedance of MPX
-
-
120
-
K
Ω
RL
Load impedance on FILOUT
-
1
-
-
M
Ω
S/N
Signal to noise ratio
VIN = 3 mVRMS
30
40
-
dB
VIN
MPX input signal
f = 19 kHz; T3
≤ 40 dB(1)
f = 57 kHz (RDS)
--
1000
50
mVRMS
mVRMS
SRDS
RDS detection sensitivity
-
1
-
-
mVrms


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