Philips TDA1597 User Manual
Page 7
1997 Feb 27
7
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Note
1.
External muting
V
16
muting voltage at I
2
= 0
V
20
≤
5
µ
V (RMS); see Fig.12
1.45
1.75
2.05
V
V
20
= 1 mV (RMS)
3.0
3.45
3.9
V
S
steepness of control voltage
slope: 100
µ
V
≤
V
20
≤
100 mV;
−
0.85
−
V/dec
Internal mute
α
; note 1
α
mute voltage
V
16
≥
V
ref
−
0
−
dB
V
16
= 0.77V
ref
1.5
−
4.5
dB
V
16
= 0.55V
ref
−
20
−
dB
I
16
current for capacitor (pin 16)
charge current
V
13
= 0 V
−
−
8
−
µ
A
discharge current
V
13
= 0 V
−
120
−
µ
A
charge current
V
13
= V
ref
−
−
100
−
µ
A
discharge current
V
13
= V
ref
−
120
−
µ
A
Level detector
R
6
output resistance pin 6
−
−
500
Ω
V
6
output voltage at I
2
= 0
V
20
≤
5
µ
V (RMS); see Fig.14
0.1
−
1.1
V
V
20
= 1 mV (RMS)
3.0
−
4.2
V
±
200 kHz detuning
1.2
1.5
1.8
V
output voltage at V
2
= V
5
V
20
≤
5
µ
V (RMS)
−
−
0.3
V
∆
V
6
output voltage at detuning
±
45 kHz detuning
−
−
0.2
V
TC
temperature coefficient
−
3.3
−
mV/VK
∆
f
detuning frequency
V
6
= 1.8 V; see Fig.13
90
−
160
kHz
S
steepness of control voltage
slope: 50
µ
V
≤
V
20
≤
50 mV;
1.4
1.7
2.0
V/dec
∆
V
6
/
∆
f
slope of output voltage at
detuning
∆
f = 125
±
20 kHz
−
35
−
mV/kHz
S
level shift adjustments
range by pin 2
±∆
V
6
/V
ref
0.42
0.5
−
V/V
gain
−∆
V
6
/
∆
V
2
−
1.7
−
V/V
range by pin 2
±∆
V
16
/V
ref
0.21
0.25
−
V/V
gain
−∆
V
16
/
∆
V
2
−
0.85
−
V/V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
20
∆
V
20
log
20 dB
∆
V
16
∆
V
20
log
---------------------
=
20
∆
V
20
log
20 dB
∆
V
6
∆
V
20
log
---------------------
=
α
20
∆
V
4 FM
MUTE
–
OFF
–
(
)
∆
V
4 FM
MUTE
–
ON
–
(
)
-------------------------------------------------------
log
=