參數(shù)資料
型號(hào): TDA1581
廠商: NXP Semiconductors N.V.
英文描述: Decoder for traffic warning VWF radio transmissions
中文描述: 解碼器交通血友病無線電傳輸警告
文件頁數(shù): 5/14頁
文件大?。?/td> 115K
代理商: TDA1581
March 1992
5
Philips Semiconductors
Preliminary specification
Decoder for traffic warning (VWF) radio
transmissions
TDA1581T
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC134).
CHARACTERISTICS
V
p
= 8.5 V; T
amb
= +25
°
C; measured at nominal input signal: V
iSK
= 8 mV, f = 57 kHz amplitude modulated with
f
m
= 34.95 Hz and m = 60% for ‘BK-traffic area C’ signal; or with f
m
= 125 Hz and m = 30% for DK signal.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
= V
7-20
V
2; 3-20
I
2; 3
V
15-20
I
15
P
tot
T
stg
T
amb
supply voltage
switch output voltage
switch output current
signal input voltage
signal input current
total power dissipation
storage temperature range
operating ambient temperature range
pin 7
pins 2 or 3
pins 2 or 3
pin 15
pin 15
0.5
10
0.5
55
30
15
15
5
V
P
10
800
+150
+80
V
V
mA
V
mA
mW
°
C
°
C
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
I
P
supply voltage
supply current
pin 7
pin 7
7.5
6
10
15
V
mA
SK amplifier/decoder
Z
i
V
i(p-p)
V
iSK
G
v9-15
G
v9-15
G
v
V
o9BK
V
o9DK
input impedance
input voltage (peak-to-peak value)
input voltage at start of gain control
voltage gain
gain spread
gain control range
controlled output voltage
f
57 kHz
60
2
40
2.4
(1)
44
(1)
440
220
±
2
k
V
mV
dB
dB
dB
mV
mV
V
o9BK
=
3 dB
V
9BK
/ V
15SK
BK circuit
V
o5BKon
V
o5BKoff
switch-on threshold level
switch hysteresis
pin 3 high-Z
600
3
670
3.5
750
4
mV
dB
V
4-20off
BK switch threshold level for BK-off
(SK-off) (typ. value = 0.21V
8-20
)
SK output (pin 3)
permitted load current
saturation voltage
rejection voltage
pin 3 conducting
0.8
0.88
0.97
V
I
3
V
3-20sat
V
3-20
18
0.5
0.35
mA
V
V
I
3
= 1.5 mA
I
3
< 5
μ
A
V
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