TEA5570 データシートの表示（PDF） - Philips Electronics
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TEA5570 Datasheet PDF : 19 Pages
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Philips Semiconductors
RF/IF circuit for AM/FM radio
Product specification
TEA5570
A.C. CHARACTERISTICS
AM performance
VP = 6 V; Tamb = 25 °C; r.f. condition: fi = 1 MHz, m = 0,3, fm = 1 kHz; transfer impedance of the i.f. filter
|Ztr| = v6/I4 = 2,7 kΩ; measured in Fig.10; unless otherwise specified
PARAMETER
R.F. sensitivity (pin 2)
at Vo = 30 mV
at S + N/N = 6 dB
at S + N/N = 26 dB
at S + N/N = 50 dB
Signal handling (THD ≤ 10% at m = 0,8)
A.F. output voltage at Vi = 1 mV
Total harmonic distortion
at Vi = 100 µV to 100 mV (m = 0,3)
at Vi = 2 mV (m = 0,8)
at Vi = 200 mV (m = 0,8)
I.F. suppression at Vo = 30 mV (note 2)
Oscillator voltage (pin 8; note 3)
at fosc = 1455 kHz
Indicator current (pin 12) at Vi = 1 mV
SYMBOL MIN.
TYP. MAX.
Vi
Vi
Vi
Vi
Vi
Vo
THD
THD
THD
α
3,5
5,0
7,0
−
1,3
−
16
20
−
1
−
200
−
−
80
100
125
−
0,5
−
−
1,0
2,5
−
4,0
10
26
35
−
V8-16
120
160
200
I12
−
200
230
UNIT
µV
µV
µV
mV
mV
mV
%
%
%
dB
mV
µV
FM performance
VP = 6 V; Tamb = 25 °C; i.f. condition: fi = 10,7 MHz, ∆f = ± 22,5 kHz, fm = 1 kHz; transfer impedance of the i.f. filter
|Ztr| = v6/i5 = 275 Ω; measured in Fig.10; unless otherwise specified
PARAMETER
SYMBOL MIN.
TYP. MAX. UNIT
I.F. part
I.F. sensitivity (adjustable; note 4)
Input voltage
at −3 dB before limiting
at S + N/N = 26 dB
at S + N/N = 65 dB
A.F. output voltage at Vi = 1 mV
Total harmonic distortion at Vi = 1 mV
AM suppression (note 5)
Vi
90
Vi
−
Vi
−
Vo
80
THD
−
AMS
−
110
130
µV
6
−
µV
1
−
mV
100
125
mV
0,3
−
%
50
−
dB
September 1987
6
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