TDA1579 Philips Semiconductors, TDA1579 Datasheet - Page 4

• Manufacturer Part Number: TDA1579
• Description: Decoder for traffic warning VWF radio transmissions
• Manufacturer: Philips Semiconductors

Philips Semiconductors
May 1992
BK circuit
Switch-on threshold level
Switch hysteresis
BK switch threshold level
(typ. value = 0.21V
SK output (pin 3)
Indicator driver (pin 1)
DK circuit
Switch-on threshold level
Switch hysteresis
DK switch threshold level
DK output (pin 2)
BK and DK filter amplifiers
Open loop gain
Current gain
Input bias current
Output offset voltage
Available output current
Output resistance
Allowable load
Decoder for traffic warning (VWF) radio
transmissions
for BK-off (SK-off)
allowable load current
saturation voltage
rejection voltage
allowable load current
saturation voltage
rejection voltage
for DK-off (Schmitt
trigger output)
(typ. value 1
allowable load current
saturation voltage
rejection voltage
capacitance
PARAMETER
V
BE
8-18
)
)
pin 3 high-Z
pin 3
conducting
I
I
I
I
pin 2 high-Z
pin 2
conducting
I
I
f = 100 Hz
R
= 680 k
3
3
1
1
2
2
5-6
= 1.5 mA
< 5 A
= 20 mA
< 10 A
= 1.5 mA
< 5 A
CONDITIONS
= R
14-15
V
V
I
V
V
I
V
V
V
V
I
V
V
G
G
R
C
--------------------- -
V
--------------------- -
V
V
V
4
3
1
2
o5BKon
4-18off
3-18sat
3-18
1-18sat
1-18
15DKon
16-18off
2-18sat
2-18
o
i
o
L
I
V
V
I
o5BKon
o5BKoff
15DKon
15DKoff
i
o
SYMBOL
o5-8
15-8
600
3
0.8
18
23
600
3.1
18
84
120
1
MIN.
670
3.5
0.88
670
3.6
0.6
2
TYP.
750
4
0.97
1.5
0.35
40
0.8
750
4.1
1.5
0.35
50
50
3.5
50
Product specification
MAX.
TDA1579T
TDA1579
mV
dB
V
mA
V
V
mA
V
V
mV
dB
V
mA
V
V
dB
dB
nA
mV
mA
k
pF
UNIT