TDA1072A/V4 Просмотр технического описания (PDF) - Philips Electronics
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TDA1072A/V4 Datasheet PDF : 19 Pages
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Philips Semiconductors
AM receiver circuit
Product specification
TDA1572
OPERATING CHARACTERISTICS
VP = 8,5 V; fi = 1 MHz; m = 30%; fm = 400 Hz; Tamb = 25 °C; measured in Fig.1; unless otherwise specified
PARAMETER
SYMBOL
MIN.
TYP. MAX. UNIT
RF sensitivity
RF input required for (S+N)/N = 6 dB
RF input required for (S+N)/N = 26 dB
RF input required for (S+N)/N = 46 dB
RF input at start of AGC
RF large signal handling
RF input at THD = 3%; m = 80%
RF input at THD = 3%; m = 30%
RF input at THD = 10%; m = 30%
AGC range
Change of Vi for 1 dB change
of Vo(AF); Vi(ref) = 500 mV
Change of Vi for 6 dB change
of Vo(AF); Vi(ref) = 500 mV
Output signal
IF output voltage at Vi = 2 mV
AF output voltage at
Vi = 4 µV; m = 80%
AF output voltage at Vi = 2 mV
THD at Vi = 1 mV
THD at Vi = 500 mV
Signal plus noise-to-noise ratio
at Vi = 100 mV
Ripple rejection at Vi = 2 mV;
VP(rms) = 100 mV; fp = 100 Hz
(SVRR = 20 log [VP/Vo(AF)])
a) additional AF signal at IF output
b) add modulation at IF output
(mref = 30%)
Vi
Vi
Vi
Vi
Vi
Vi
Vi
∆Vi
∆Vi
Vo(IF)
Vo(AF)
Vo(AF)
dtot
dtot
(S+N)/N
RR
RR
RR
−
1,5
−
µV
−
15
−
µV
−
150
−
µV
−
30
−
µV
−
500
−
mV
−
700
−
mV
−
900
−
mV
−
86
−
dB
−
91
−
dB
180
230
290
mV
−
130
−
mV
240
310
390
mV
−
0,5
−
%
−
1
−
%
−
58
−
dB
−
38
−
dB
−
0*
−
dB
−
40
−
dB
December 1987
8
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