Philips TDA1596T - Manual (Page 8)

April 1991 8
Philips Semiconductors Product specification
IF amplifier/demodulator for FM radio
receivers
TDA1596T
Attack and decay (pin 16)
Pin 13 connected to ground *
+
I
16
charge current
−
8
− µ
A
−
I
16
discharge current
−
120
− µ
A
Pin 13 connected to V
ref
+
I
16
charge current
−
100
− µ
A
−
I
16
discharge current
−
120
− µ
A
Level detector
Dependence of output voltage on temperature
−
3.3
−
mV/VK
R
6
Output impedance
− −
500
Ω
Dependence of output voltage (pin 6) on input voltage
(pin 20) (Fig.7):
V
6
V
20(rms)
≤
5
µ
V; I
2
= I
7
= 0 mA 0.1 0.7 1.3 V
V
6
V
20(rms)
= 1 mV; I
2
= I
7
= 0 mA 3.0 3.6 4.2 V
Slope of output voltage (pin 6) for input voltage range
V
20(rms)
≥
50
µ
V to V
20(rms)
≤
50 mV
1.4 1.7 2.0 V/20 dB
Dependence of output voltage (pin 6) on detuning
(Fig.8) at input voltage V
20(rms)
= 10 mV:
∆
V
6
detuning =
≤ ±
45 kHz
− −
0.2 V
±∆
f detuning for V
6
= 1.8 V 90
−
160 kHz
V
6
detuning =
±
200 kHz 0.5 0.7 0.9 V
|
∆
V
6
/
∆
f| Slope of output voltage with detuning = 125
±
20 kHz
at V
20(rms)
= 10 mV
−
35
−
mV/kHz
Level shift control (pin 2) (Fig.9)
±∆
V
6
adjustment range 1.6 2.0
−
V
−
(
∆
V
6
/
∆
V
2
) adjustment gain
−
1.7
−
V
V
6
output voltage at V
2
= V
5;
V
20(rms)
≤
5
µ
V
− −
0.3 V
Low-pass filter at pin 8
Output voltage at I
7
= 0 mA;
V
8
V
20(rms)
≤
5
µ
V
−
2.2
−
V
R
8(int)
Internal resistance 12 25 50 k
Ω
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V
6
∆
V
6
T
∆
--------------
V
6
∆
20 V
20
log
∆
----------------------------