E-TDA7461ND View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'E-TDA7461ND' PDF : 48 Pages View PDF
Stereo decoder part
TDA7461
Table 8.
Stereo decoder electrical characteristics (continued)
(VS = 9 V; de-emphasis time constant = 50 μs, VMPX = 500 mV, 75 kHz deviation, f = 1 kHz.
GI = 6 dB, Tamb = 25 °C; unless otherwise specified)
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
Traffic radio (3)
α57
Signal
f = 57 kHz
SCA - Subsidiary communications authorization (4)
70
dB
α67
Signal
ACI - Adjacent channel interference (5)
f = 67 kHz
75
dB
α114
α190
Signal
Signal
f = 114 kHz
f = 190 kHz
95
dB
84
dB
1. By design/characterization but functionally guaranteed through dedicated test mode structure
2. Intermodulation Suppression: measured with: 91% pilot signal; fm = 10kHz or 13kHz.
3. Traffic radio (V.F.) suppression: measured with: 91 % stereo signal; 9 % pilot signal; fm=1 kHz; 5% sub carrier (f = 57 kHz,
fm = 23 Hz AM, m = 60 %)
4. SCA (subsidiary communications authorization) measured with: 81% mono signal; 9% pilot signal; fm = 1 kHz; 1 0% SCA
sub carrier (fs = 6 7 kHz, unmodulated).
5. ACI (adjacent channel interference) measured with: 90% mono signal; 9% pilot signal; fm = 1 kHz; 1% spurious signal
(fs = 110 kHz or 186 kHz, unmodulated).
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