August 1990
6
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
TDA1574T
CHARACTERISTICS
V
P
= V
17-4
= 8.5 V; T
amb
= 25
°
C; measured in test circuit Fig.1;
All measurements are with respect to ground (pin 4); unless otherwise specified
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply (pin 17)
Supply voltage
V
P
= V
17
V
17
7
−
14
V
Supply current
(except mixer)
I
P
= I
17
I
17
16
23
30
mA
Reference voltage (pin 5)
V
5
4.0
4.2
4.4
V
Mixer
DC characteristics
Input bias voltage
(pins 1 and 2)
V
1,2
−
1
−
V
Output voltage
(pins 18 and 19)
V
18,19
4
−
35
V
Other current
(pins 18 and 19)
I
18 + 19
−
4.5
−
mA
AC characteristics
f
i
= 98 MHz
Noise figure
NF
−
9
−
dB
Noise figure including
transforming network
NF
−
11
−
dB
3rd order intercept point
EMF1
IP3
−
115
−
dB/
µ
V
Conversion power gain
note 1
G
CP
−
14
−
dB
Input resistance
(pins 1 and 2)
R
1,2
−
14
−
Ω
Output capacitance
(pins 18 and 19)
C
18, 19
−
13
−
pF
Oscillator
DC characteristics
Input voltage
(pins 7 and 8)
V
7,8
−
1.3
−
V
Output voltage (pin 6)
V
6
−
2
−
V
AC characteristics
Residual FM (bandwidth =
300 Hz to 15 kHz)
de-emphasis = 50
µ
s
∆
f
−
2.2
−
Hz
Linear IF amplifier
DC characteristics
Input bias voltage (pin 15)
V
15
−
1.2
−
V
