August 1990
8
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
TDA1574T
Notes to the characteristics
1. Power gain conversion is equated by the following equation:
2. Voltage gain is equated by the following equation:
Wideband threshold
(RMS value)
(see Figs 3, 4, 5 and 6)
at V
14
= 0.7 V;
V
20
= V
P
/2; I
20
= 0
EMF
2(rms)
−
17
−
mV
Oscillator output buffer
(pin 9)
DC output voltage
V
9
−
6
−
V
Oscillator output voltage
(RMS value)
at R
L
= oo; C
L
= 2 pF
V
9(rms)
−
110
−
mV
at R
L
= 75
Ω
V
9(rms)
30
50
−
mV
DC output resistance
R
9-17
−
2.5
−
k
Ω
Signal purity
Total harmonic distortion
THD
−
−
15
−
dB
Spurious frequencies
at EMF 1 = 1 V; R
S1
= 50
Ω
f
S
−
−
35
−
dB
Electronic standby switch
(pin 11)
Oscillator; linear IF
amplifier; AGC
T
amb
=
−
40
to + 85
°
C
Input switching voltage
for threshold ON
V
20
= > V
P
−
3 V
V
13
0
−
2.3
V
for threshold OFF
V
20
= < 0.5 V
V
13
3.3
−
23
V
Input current
at ON condition
V
13
= 0 V
−
I
13
−
−
150
µ
A
at OFF condition
V
13
= 23 V
−
I
13
−
−
10
µ
A
Input voltage
I
13
= 0
V
13
−
−
4.4
V
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
10
4 V
M out
(
)
10.7MHz
(
)
2
EMF1 98 MHz
(
)
2
----------------------------------------------------------- x
R
S1
R
ML
-----------
log
20
V
12
V
16
15
–
------------------
log
