AS8413 Ver la hoja de datos (PDF) - austriamicrosystems AG
Número de pieza
componentes Descripción
Fabricante
AS8413 Datasheet PDF : 15 Pages
| |||
High Performance Automotive Sonar Intrusion – Data Sheet
AS8413
Low Level Output Voltage Vol
High Level Output Voltage Voh
Low Level Output Voltage
Vol
High Level Output Voltage Voh
High-Z Output Current
Ioz
Total Supply Current
Idd
-
-
-
4.0
-
-
4.6
3.5
-
-
-
0.5
0.5
0.5
-
-
-
0.4
-
1.5
-
-
-
-
-
10
0.65 1.0
1.0 1.6
V
V
V
V
V
V
V
V
µA
mA
mA
Pins 1, 20, 24
Iol=3 mA
Pins 22,23
Iol=4 mA
Pins 21
Iol=12mA
Pins 1, 20, 24
Ioh=-3 mA
Pin 4 (SEL40K= 0) Iol=100uA
Pin 4 (SEL40K= 1) Iol=10 uA
Pin 4 (SEL40K= 0) Ioh=-100 uA
Pin 4 (SEL40K= 1) Ioh=-10 uA
Pins 21, 22, 23
Vo=5V
SEL40K= 1
crystal or clock
SEL40K= 0
ceramic resonator
C1=C2=100pF
A.C. Electrical Characteristics
(VDD = 5 V, VSS = Ground, TA = 25°C)
Parameter
Symbol Min
Power-on-reset width
tpor
50
500
500
Self-test delay (incl. tpor)
tstd
1.3
1.7
1.7
Fault indication pulse width
tstw
4.3
SYNC pulse width
tsync
-
SYNC period
Tsync
-
ALARM low pulse width
tal
200
LED low pulse width
tonn
-
tonw
-
LED low pulse width
toff
-
Typ
-
-
-
-
-
-
-
0.6
44.4
-
89
977
888
Max
70
530
800
1.4
1.9
2.1
4.6
-
-
-
-
-
-
Units Conditions
SEL40K= 0, resonator / clock
ms SEL40K= 1, clock
SEL40K= 1, crystal
s SEL40K= 0, resonator / clock
SEL40K= 1, clock
SEL40K= 1, crystal
s
ms
ms
ms Pins 22, 23
ms narrow = no detection
ms wide = detection
ms
System Description
Ultrasonic intrusion detectors are very popular in vehicle security systems, due to their low cost,
good area coverage and easiness of installation. The AS8413 uses the sonar principle to build a
high-performance intrusion detector that follows the requirements of the OEM automotive indus-
try. Additionally, the IC supports the use of two or more pairs of sensors. As very short ultrasonic
bursts are sent, the power needed to drive the transmitter is reduced. Interference and signal
ancellation effects, present in systems with continuous transmission, are virtually eliminated.
March 2001
Page 5 of 15
Share Link: 