TDA1593T Просмотр технического описания (PDF) - Philips Electronics
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TDA1593T Datasheet PDF : 20 Pages
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Philips Semiconductors
IF amplifier/demodulator for
FM car radio receivers
Product specification
TDA1593
OPERATING CHARACTERISTICS
VP = 7.5 to 12 V; Tamb = +25 °C; fIF = 10.7 MHz; deviation ±22.5 kHz with fm = 400 Hz; Vi = 10 mV (RMS) at pin 20;
de-emphasis of 50 µs; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses; measurements taken in Fig.4
unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MIN. UNIT
IF amplifier and demodulator
Vi
input signal for start of limiting
V16 = 4.5 V
14
22
(−3 dB) (RMS value; pin 20)
input signal for signal-to-noise ratio f = 250 to 15000 Hz;
(RMS value)
V16 = 4.5 V
S/N = 26 dB
−
15
S/N = 46 dB
−
60
S/N
Vo
THD
signal-to-noise ratio
deviation ±75 kHz; −
82
fm = 400 Hz
AF output signal (RMS value; pin 4)
180
200
total harmonic distortion
without de-emphasis
deviation ±75 kHz;
fm = 1 kHz
−
0.2
±25 kHz detuning
−
−
αAM
AM suppression on pin 4
m = 30%; on pin 20
Vi = 0.3 to 1000 mV (RMS)
43
55
Vi = 1 to 300 mV (RMS)
57
65
Tuning stop detector
∆fSTOP-0
∆fSTOP-1
V20
R8
detuning frequency for STOP-0
(pin 15)
detuning frequency for STOP-1
(pin 14)
dependence on input voltage for
STOP-0 and STOP-1 (RMS value)
internal low-pass resistance of
detune detector
see Fig.9
V15 ≥ 3.5 V
V15 ≤ 0.3 V
see Fig.8
V14 ≥ 3.5 V
V14 ≤ 0.3 V
see Fig.7
V14, 15 ≥ 3.5 V
V14, 15 ≤ 0.3 V
−
−
+22.0 −
−
−
−22.0 −
250
−
−
−
12
25
V8
voltage on capacitor
Vi ≤ 5 µV (RMS) on −
2.2
input pin 20
35
µV
−
µV
−
µV
−
dB
220
mV
0.6
%
1.0
%
−
dB
−
dB
+14.0 kHz
−
kHz
−14.0 kHz
−
kHz
−
µV
50
µV
50
kΩ
−
V
Level detector (I2 = 0)
V6
output voltage
Reference voltage source (pin 5)
Vref
reference output voltage
V20 ≤ 5 µV (RMS)
0.1
−
V20 = 1 mV (RMS) 3.0
−
1.1
V
4.2
V
I5 = −1 mA
3.3
3.7
4.1
V
1996 Oct 10
9
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