
AN7298FBP
ICs for FM/AM Tuner
4
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Control voltage 1
V
C1
Without input, pin 45 DC voltage
0.05
0.50
0.90
V
Control voltage 2
V
C2
V
IN
=
40 dB
μ
, pin 45 DC voltage
V
IN
=
70 dB
μ
, pin 45 DC voltage
V
IN
=
100 dB
μ,
pin 45 DC voltage 4.45
V
C5
=
V
C3
V
C2
V
C6
=
V
C4
V
C3
Without input, DC voltage between
pin 29 and pin 39
1.20
1.65
2.10
V
Control voltage 3
V
C3
2.75
3.45
4.15
V
Control voltage 4
V
C4
5.35
6.25
V
Control voltage 5
V
C5
1.60
1.80
2.00
V
Control voltage 6
V
C6
V
AFC
1.70
1.90
2.10
V
AFC offset voltage
0.1
0.0
0.1
V
Output level L
V
OL
V
IN
=
70dB
μ
, pin 6 AC voltage
V
IN
=
70dB
μ
, pin 5 AC voltage
CB
=
20Log (V
OL
/V
OR
)
V
OL
to 0 dB. Input when pin 6
AC voltage drops by 3 dB
90
110
130
mV[rms]
Output level R
V
OR
90
110
130
mV[rms]
Channel balance
CB
1.0
0.0
1.0
dB
Limiting sensitivity
V
lim
20.0
26
30.0
dB
μ
Residual pilot voltage
V
PC
Pin 26 output when V
IN
=
70 dB
μ
,
pilot signal 10% modulation
4
14.0
mV[rms]
Stereo lamp on-level
Lamp
ON
Modulation with pilot signal only,
DC voltage of pin 34 is below 2 V
1.0
3.5
6.0
%
Stereo lamp off-level
Lamp
OFF
Modulation with pilot signal only.
Ratio of stereo lamp on and off
level
2.0
6.0
10.0
dB
Separation L-ch.
Sep
L
V
IN
=
70 dB
μ
, L
+
R
=
90%
Pilot 10%
25
33
dB
Separation R-ch.
Sep
R
V
IN
=
70 dB
μ
, L
+
R
=
90%
Pilot 10%
25
33
dB
Capture range
CR
V
IN
=
70 dB
μ,
pilot signal 6.5% modulation
+
0.6
0.2
+
0.8
0.4
%
Counter output level 1
V
IF1
V
IN
=
70 dB
μ
, pin 28
=
0V,
pin 27 10.7 MHz, output voltage
0
2.0
5.0
mV[rms]
Counter output level 2
V
IF2
V
IN
=
70 dB
μ
, pin 28
=
V
CC
,
pin 27 AC output voltage
85
100
115
mV[rms]
Power supply current
I
tot
Without input, pin 11
=
0 V
28.0
35.0
42.0
mA
Monaural THD (L-ch.)
THD
L
Monaural input 400 mV, 1kHz,
L-ch. distortion
0.15
0.3
%
Monaural THD (R-ch.)
THD
R
Monaural input 400 mV, 1kHz,
R-ch. distortion
0.15
0.3
%
I
Electrical Characteristics at V
CC
=
8 V, f
IN
=
10.70 MHz, f
mod
=
1 kHz 30%FM, T
a
=
25
°
C
I
Recommended Operating Range
Parameter
Symbol
Range
Unit
Supply voltage
V
CC
7.2 to 9.6
V