Philips TDA1597 - Manual (Page 6)

1997 Feb 27 6
Philips Semiconductors Product specification
IF amplifier/demodulator for FM radio receivers TDA1597
THERMAL CHARACTERISTICS
CHARACTERISTICS
V
P
= 8.5 V; T
amb
= 25
°
C; FM-MUTE-ON (I
7
= 0); f
IF
= 10.7 MHz; deviation
±
22.5 kHz with f
m
= 400 Hz;
V
i
= 10 mV (RMS) at pin 20; de-emphasis of 50
µ
s; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses;
measurements taken in Fig.4; unless otherwise specified.
SYMBOL PARAMETER VALUE UNIT
R
th j-a
thermal resistance from junction to ambient in free air
SOT102-1 80 K/W
SOT163-1 90 K/W
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
supply voltage 7.5 8.5 12 V
I
P
supply current I
2
= I
7
= 0
−
20 26 mA
Mode switch input
I
7
input current FM-MUTE-ON
−
0
−
mA
V
7
input voltage FM-MUTE-ON 2.4 2.8 3.2 V
FM-MUTE-OFF 0.9V
ref
− −
V
FM-OFF;
AF attenuation >60 dB
− −
1.4 V
IF amplifier and demodulator
Z
i
demodulator input impedance
between pins 10 and 11 25 40 55 k
Ω
C
i
demodulator input capacitance
between pins 10 and 11
−
6
−
pF
AF output (pin 4)
R
o
output resistance
−
400
− Ω
V
4
DC output voltage level V
iIF
≤
5
µ
V (RMS) on pin 20 2.75 3.1 3.45 V
PSRR power supply ripple rejection
(pin 4) f = 1000 Hz;
V
ripple
= 50 mV (RMS)
33 36
−
dB
Tuning stop detector
∆
f
STOP-0
detuning frequency for STOP-0
(pin 15) V
15
≥
3.5 V; see Fig.11
− −
26 kHz
V
15
≤
0.3 V; see Fig.11 38
− −
kHz
∆
f
STOP-1
detuning frequency for STOP-1
(pin 14) V
14
≥
3.5 V; see Fig.10
− − −
26 kHz
V
14
≤
0.3 V; see Fig.10
−
38
− −
kHz
V
20(rms)
dependence on input voltage for
STOP-0 and STOP-1
(RMS value) V
14, 15
≥
3.5 V; see Fig.9 250
− − µ
V
V
14, 15
≤
0.3 V; see Fig.9
− −
50
µ
V
V
14, 15
output voltage I
14, 15
= 1 mA
− −
0.3 V
Reference voltage source (pin 5)
V
ref
reference output voltage I
5
=
−
1 mA 3.3 3.7 4.1 V
R
5
output resistance I
5
=
−
1 mA
−
40 80
Ω
TC temperature coefficient
−
3.3
−
mV/VK