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參數(shù)資料
| 型號： | AS8412 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 消費家電 |
| 英文描述： | HIGH PERFORMANCE AUTOMOTIVE SONAR INTRUSION |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP20 |
| 封裝： | DIP-20 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大小： | 116K |
| 代理商： | AS8412 |
High Performance Automotive Sonar Intrusion – Data Sheet
AS8412
March 2001
Page 2 of 14
Key Features
True sonar/pulse-echo operation
Wide dynamic range
Programmable sensitivity levels
Self-adaptive to vehicle interiors
Self-adaptive to temperature and environmental changes
High sensitivity to intrusion
Immunity to false alarms
Detection of sabotage attempts
Compatible with standard 40 kHz ultrasonic transducers
No adjustments needed at factory or at field
Few external components
Time reference: external clock or oscillator based on crystal/ceramic resonator
Built-in self-test
Internal power-on-reset
Advanced CMOS technology
Low power consumption: 0.65 to 1.0 mA
Operation between -40°C and +85 °C
Available in 20-pin DIP and 20-pin SOIC package
General Description
The AS8412 is a signal processing IC designed to implement reliable, high-performance
sonar intrusion detectors. It generates short 40 kHz bursts to feed an ultrasonic trans-
ducer. The resulting sonar waves are reflected on the vehicle interior and the echoes are
received by another transducer. Inside the AS8412, the electrical signal is first submitted
to an analog conditioning circuit, then it is digitized and processed by a DSP, whose out-
put is analyzed by a discriminator based on fuzzy-logic techniques. Thus, true intrusion
conditions can be discerned from natural phenomena and other allowable disturbances.
No adjustments are necessary at factory or at the field, as the AS8412 is self-adaptive to
the physical and environmental conditions. Compact and EMI-resistant intrusion detec-
tors are made possible, due to the small number of components.
Block Diagram
PRE-
AMP
BAND-PASS
FILTER
AGC
ENVELOPE
DETECTOR
A / D
CONVERTER
D S P
DISCRIMINATOR
MODULATOR /
DRIVER
CONTROL
LOGIC
OSCILLATOR
SIGNALLING
VCAP
SAS
SENS 1
SENS 0
ALEN
LED
WARN
SEL40K
OSCIN
OSCOUT
TX1
TX2
RX
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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 |
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