TDA7040T データシートの表示（PDF） - Philips Electronics
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TDA7040T Datasheet PDF : 11 Pages
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Philips Semiconductors
Low voltage PLL stereo decoder
Product specification
TDA7040T
CHARACTERISTICS
Of the combination TDA7021T, TDA7040T and TDA7050T (Fig.3).
Conditions unless otherwise specified: Vvhf(rms) = 1 mV; fhf = 97 MHz; fdev = 22,5 kHz; fdev pilot = 6,75 kHz; noise
measured unweighted in a range from 400 Hz to 15 kHz.
PARAMETER
Total harmonic distortion (pilot on)
Vi = (L + R) signal; fmod = 1 kHz
Vi = L signal; fmod = 1 kHz
Signal to noise ratio
Vi = (L + R) signal; fmod = 1 kHz
pilot off
pilot on
Channel separation
Vi = L-signal, fmod = 1 kHz; pilot on;
fRF = 97 MHz
Vi = L-signal, fmod = 1 kHz; pilot on;
fRF = 87,5 MHz and 108 MHz
Output voltage (pilot off)
Vi = (L + R) signal, fmod = 1 kHz
SYMBOL
THD
THD
S/(S + N)
S/(S + N)
α
α
Vo(rms)
MIN.
TYP.
MAX.
UNIT
−
0,5
−
%
−
1,0
−
%
−
56
−
dB
−
50
−
dB
−
26
−
dB
−
14
−
dB
−
80
−
mV
a = measured in test circuit (Fig.2)
b = measured in application diagram (Fig.3)
Fig.4 Channel separation as a function of audio frequency.
September 1986
7
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