Philips TDA1597, Datasheet

Page: 7 / 24

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 =