TDA1579 Philips Semiconductors, TDA1579 Datasheet - Page 3

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

Philips Semiconductors
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134). All pin numbers in this table apply to
TDA1579; for TDA1579T refer to Fig.1.
CHARACTERISTICS
V
f
All pin numbers in this table apply to TDA1579, for TDA1579T refer to Fig.1.
May 1992
m
Supply voltage
Switch output voltage
Switch output current
Signal input voltage
Signal input current
Total power dissipation
Storage temperature
Operating ambient
Supply voltage
Supply current
SK amplifier/decoder
Input impedance
Input voltage (peak-to-
Input voltage at start of
Voltage gain
Gain spread
Gain control range
Controlled output voltage
P
Decoder for traffic warning (VWF) radio
transmissions
= 34.95 Hz and m = 60% for ‘BK-traffic area C’ signal; or with f
range
temperature range
peak value)
gain control
= 8.5 V; T
PARAMETER
PARAMETER
amb
= 25 C; measured at nominal input signal: V
pin 7
pin 1
pins 2 or 3
pins 1, 2 or 3
pin 1
pins 2 or 3
pins 1, 2 or 3
pin 13
pin 13
pin 13
CONDITIONS
pin 7
pin 7
f
V
V
o9BK
9BK
CONDITIONS
57 kHz
/V
= 3 dB
13SK
V
V
V
I
I
V
P
T
T
1
2; 3
V
I
V
I
stg
amb
P
1-18
2; 3-18
13-18
tot
1; 2; 3
13
V
I
|Z
V
V
G
V
V
3
1; 2; 3-18
13-18
P
= V
G
P
i(p-p)
iSK
o9BK
o9DK
v9-13
i
SYMBOL
|
SYMBOL
v
iSK
G
7-18
v9-13
m
= 8 mV, f = 57 kHz amplitude modulated with
= 125 Hz and m = 30% for DK signal.
7.5
100
2
40
55
30
MIN.
MIN.
6
2.4*
44*
440
220
TYP.
TYP.
12
10
2
15
23
15
0.5
50
5
10
V
0.5
10
800
Product specification
150
P
MAX.
MAX.
80
TDA1579T
TDA1579
V
mA
k
V
mV
dB
dB
dB
mV
mV
V
V
V
V
mA
mA
mA
V
mA
mW
C
C
UNIT
UNIT