參數(shù)資料
型號(hào)： AS8412
廠商： AUSTRIAMICROSYSTEMS AG
元件分類： 消費(fèi)家電
英文描述： HIGH PERFORMANCE AUTOMOTIVE SONAR INTRUSION
中文描述： SPECIALTY CONSUMER CIRCUIT, PDIP20
封裝： DIP-20
文件頁(yè)數(shù)： 5/14頁(yè)
文件大小： 116K
代理商： AS8412
High Performance Automotive Sonar Intrusion – Data Sheet
AS8412
March 2001
Page 5 of 14
Low Level Output Voltage
Vol
-
-
-
0.5
0.5
0.5
V
V
V
Pins 1, 20
Pins 18, 19
Pins 17
Iol=3 mA
Iol=4 mA
Iol=12mA
High Level Output Voltage
Voh
4.0
-
-
V
Pins 1, 20
Ioh=-3 mA
High-Z Output Current
Ioz
-
-
10
μA
Pins 17, 18,
19
Vo=5V
Total Supply Current
Idd
-
-
0.65
1.0
1.0
1.6
mA
mA
SEL40K= 1
SEL40K= 0
crystal or clock
ceramic resonator
C1=C2=100pF
A.C. Electrical Characteristics
(V
DD
= 5 V, V
SS
= Ground, T
A
= 25°C)
Parameter
Symbol
Min
Typ
Max
Units
Conditions
Power-on-reset width
t
por
50
500
500
-
-
-
70
530
800
ms
SEL40K= 0, resonator / clock
SEL40K= 1, clock
SEL40K= 1, crystal
Self-test delay (incl. t
por
)
t
std
1.3
1.7
1.7
-
-
-
1.4
1.9
2.1
s
SEL40K= 0, resonator / clock
SEL40K= 1, clock
SEL40K= 1, crystal
Fault indication pulse width
t
stw
t
al
4.3
-
4.6
s
ALARM low pulse width
200
-
-
ms
Pins 18, 19
LED low pulse width
t
onn
-
-
89
977
-
-
ms
ms
narrow = no detection
wide = detection
LED high pulse width
t
off
-
888
-
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 AS8412 uses the sonar principle to
build a high-performance intrusion detector that follows the requirements of the OEM automo-
tive industry. As very short ultrasonic bursts are sent, the power needed to drive the transmitter
is reduced. Interference and signal cancellation effects, present in systems with continuous
transmission, are virtually eliminated.
Fig. 1 shows the pulse/echo timing generated by the AS8412.
The basic concept behind the AS8412 is the detection of changes in the relative position of
objects inside the vehicle, by monitoring successive echo patterns with a discriminator based
on fuzzy-logic.
Despite the higher complexity of this approach, that demands both analog and digital signal
processing, the solution is made cost-effective with the use of a single IC and a small number
of external components.
相關(guān)PDF資料
PDF描述
AS8413 HIGH PERFORMANCE AUTOMOTIVE SONAR INTRUSION
AS8846 Programmable PWM DC Motor Driver / Controller
AS8F128K32 128K x 32 FLASH FLASH MEMORY ARRAY
AS9C25128M2036L-166PI 2.5V 256/128K X 36 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25256M2036L-200BC 2.5V 256/128K X 36 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AS8413 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:HIGH PERFORMANCE AUTOMOTIVE SONAR INTRUSION
AS8424-A 制造商:Coilcraft Inc 功能描述:DSL transformer, for AD20MSP910/918, not RoHS
AS8425-A 制造商:Coilcraft Inc 功能描述:DSL transformer, for Motorola MC145660, not RoHS
AS8426-A 制造商:Coilcraft Inc 功能描述:DSL transformer, for Alcatel MTK-20140, not RoHS
AS8444 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Programmable PWM DC Motor Driver / Controller
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*