參數(shù)資料
型號(hào)： MC33794DWB/R2
廠商： MOTOROLA INC
元件分類： 模擬信號(hào)調(diào)理
英文描述： Electric Field Imaging Device
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO54
封裝： PLASTIC, SOICW-54
文件頁數(shù)： 1/23頁
文件大小： 574K
代理商： MC33794DWB/R2
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
33794 Simplified Application Diagram
33794
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
Motorola, Inc. 2003
Document order number: MC33794/D
Rev 6.0, 04/2003
Product Preview
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33794DH/R2
-40 to 85°C
44 HSOP
MC33794DWB/R2
-40 to 85°C
54 SOICW-EP
ELECTRIC FIELD
IMAGING DEVICE
Electric Field Imaging Device
The 33794 is intended for applications where noncontact sensing of objects
is desired. When connected to external electrodes, an electric field is created.
The 33794 is intended for use in detecting objects in this electric field. The IC
generates a low-frequency sine wave. The frequency is adjustable by using an
external resistor and is optimized for 120 kHz. The sine wave has very low
harmonic content to reduce harmonic interference.
The 33794 also contains support circuits for a microcontroller unit (MCU) to
allow the construction of a two-chip E-field system.
Features
Supports up to 9 Electrodes and 2 References
Shield Driver for Driving Remote Electrodes Through Coaxial Cables
+5.0 V Regulator to Power External Circuit
ISO-9141 Physical Layer Interface
Lamp Driver Output
Watchdog and Power ON Reset Timer
Critical Internal Nodes Scaled and Selectable for Measurement
High-Purity Sine Wave Generator Tunable with External Resistor
DH SUFFIX
CASE 1291
44-LEAD HSOP
DWB SUFFIX
CASE 1390
54-LEAD SOICW-EP
VDD
LAMP_OUT
VCC
LP_CAP
33794
VPWR
VCC
ISO-9141
SIGNAL
REF_A
REF_B
E1
E2
E9
SHIELD
LEVEL
VDD_MON
PWR_MON
LAMP_MON
LAMP_SENSE
ISO_IN
ISO_OUT
WD_IN
RST
LAMP_CTRL
LAMP_GND
TEST
A, B, C, D
DIS_SHIELD
R_OSC
AGND
GND
Analog_IN
ISO_Tx
ISO_Rx
Watchdog
Reset
Electrode Select
Shield Disable
39 k
100 pF
10 pF
10 k
47
F
0.1
F
47
F
10 nF
Indicator
Lamp
Monitor (Optional)
+12 V
1
9
2
GPx
MCU
ISO-9141 Bus
Field Electrodes
4
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MC33794EK 功能描述:近程傳感器 ODS 54LD RoHS:否 制造商:Vishay Semiconductors 感應(yīng)方式:Optical 感應(yīng)距離:1 mm to 200 mm 電源電壓:2.5 V to 3.6 V 安裝風(fēng)格:SMD/SMT 輸出配置:Digital 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 系列:VCNL3020
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