TDA1572T Просмотр технического описания (PDF) - Philips Electronics
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TDA1572T Datasheet PDF : 20 Pages
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Philips Semiconductors
AM receiver
Product specification
TDA1572T
OPERATING CHARACTERISTICS
VP = 8.5 V; fi = 1 MHz; m = 30%; fm = 400 Hz; Tamb = 25 °C; measured in Fig.1; unless otherwise specified
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
ViRF(rms)
ViRF(rms)
ViRF(rms)
ViRF(rms)
ViRF(rms)
ViRF(rms)
ViRF(rms)
∆Vi
∆Vi
VoIF(rms)
VoAF(rms)
VoAF(rms)
THD
THD
THD
(S + N)/N
SVRR
SVRR
SVRR
RF sensitivity
RF input voltage
(RMS value)
for (S + N)/N = 6 dB
for (S + N)/N = 26 dB
for (S + N)/N = 46 dB
at start of AGC
RF large signal handling
RF input voltage
(RMS value)
at THD = 3%; m = 80%
at THD = 3%; m = 30%
at THD = 10%; m = 30%
AGC range
Change of Vi for 1 dB change
of VoAF; Vi(ref) = 500 mV(rms)
Change of Vi for 6 dB change
of VoAF; Vi(ref) = 500 mV(rms)
Output signal
(RMS value)
IF output voltage at Vi = 2 mV(rms)
AF output voltage
at Vi = 4 µV(rms); m = 80%
at Vi = 2 mV(rms)
Total harmonic distortion
at Vi = 2 mV(rms); m = 30%
at Vi = 2 mV(rms); m = 80%
at Vi = 500 mV(rms); m = 30%
Signal-to-noise ratio at Vi = 100 mV(rms)
Supply voltage ripple rejection at Vi = 2 mV(rms)
VP = 100 mV(rms); fp = 100 Hz
(SVRR = 20 log [VP/VoAF])
(a) additional AF signal at IF output
(b) add modulation at IF output (mref = 30%)
−
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
−
%
−
1.0
−
%
−
1.0
−
%
−
58
−
dB
−
38
−
dB
−
0(1)
−
dB
−
40
−
dB
May 1992
10
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