TDA1597T Просмотр технического описания (PDF) - Philips Electronics
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TDA1597T Datasheet PDF : 24 Pages
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Philips Semiconductors
IF amplifier/demodulator for FM radio receivers
Product specification
TDA1597
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
Rth j-a
thermal resistance from junction to ambient in free air
SOT102-1
SOT163-1
VALUE
80
90
UNIT
K/W
K/W
CHARACTERISTICS
VP = 8.5 V; Tamb = 25 °C; FM-MUTE-ON (I7 = 0); 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
VP
supply voltage
IP
supply current
Mode switch input
I7
input current
V7
input voltage
CONDITIONS
I2 = I7 = 0
FM-MUTE-ON
FM-MUTE-ON
FM-MUTE-OFF
FM-OFF;
AF attenuation >60 dB
MIN.
7.5
−
TYP.
8.5
20
MAX.
12
26
UNIT
V
mA
−
0
−
mA
2.4
2.8
3.2
V
0.9Vref −
−
−
−
V
1.4
V
IF amplifier and demodulator
Zi
demodulator input impedance
between pins 10 and 11
Ci
demodulator input capacitance
between pins 10 and 11
25
40
55
kΩ
−
6
−
pF
AF output (pin 4)
Ro
V4
PSRR
output resistance
DC output voltage level
power supply ripple rejection
(pin 4)
ViIF ≤ 5 µV (RMS) on pin 20
f = 1000 Hz;
Vripple = 50 mV (RMS)
Tuning stop detector
∆fSTOP-0
∆fSTOP-1
V20(rms)
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)
V15 ≥ 3.5 V; see Fig.11
V15 ≤ 0.3 V; see Fig.11
V14 ≥ 3.5 V; see Fig.10
V14 ≤ 0.3 V; see Fig.10
V14, 15 ≥ 3.5 V; see Fig.9
V14, 15 ≤ 0.3 V; see Fig.9
V14, 15
output voltage
I14, 15 = 1 mA
Reference voltage source (pin 5)
Vref
reference output voltage
R5
output resistance
TC
temperature coefficient
I5 = −1 mA
I5 = −1 mA
−
400
2.75 3.1
33
36
−
−
38
−
−
−
−38
−
250
−
−
−
−
−
3.3
3.7
−
40
−
3.3
−
Ω
3.45 V
−
dB
26
kHz
−
kHz
−26
kHz
−
kHz
−
µV
50
µV
0.3
V
4.1
V
80
Ω
−
mV/VK
1997 Feb 27
6
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