TDA7478_11 Datasheet, PDF (5/11 Pages) STMicroelectronics – Single chip RDS demodulator

TDA7478
2
Electrical specifications
Electrical specifications
2.1
Thermal data
Table 3. Thermal data
Symbol
Description
R_{th j-case} Thermal resistance junction-to-case
Max.
Value
200
Unit
°C/W
2.2
Absolute maximum ratings
Table 4. Absolute maximum ratings
Symbol
Parameter
V_S Supply voltage
T_op Operating temperature range
T_stg Storage temperature
Value
Unit
-0.3 to 7
V
-40 to 85
°C
-55 to 150
°C
2.3
Electrical characteristics
T_amb = 25°C, V_S = 5V, unless otherwise specified.
Table 5.
Symbol
Electrical characteristics
Parameter
Test condition
V_S Supply voltage
I_S Supply current
-
-
Filter
f_C Center frequency
BW 3 dB bandwidth
G Gain
A Attenuation
R_I Input impedance of MPX
R_L Load impedance on FILOUT
S/N Signal to noise ratio
V_IN MPX input signal
S_RDS RDS detection sensitivity
-
-
f = 57 kHz
Δf ± 4 kHz
f = 38 kHz
f = 67 kHz
-
-
V_IN = 3 mVRMS
f = 19 kHz; T3 ≤ 40 dB⁽¹⁾
f = 57 kHz (RDS)
-
Min. Typ. Max. Unit
4.5
5
5.5
V
-
7.5 12.0 mA
56.6 57 57.4 kHz
2.5
3
3.5 kHz
17
20
23
dB
-
22
-
dB
-
60
-
dB
-
45
-
dB
-
120
-
KΩ
1
-
-
MΩ
30
40
-
dB
-
-
1000 mV_RMS
50 mV_RMS
1
-
- mVrms
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