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參數(shù)資料
| 型號： | MC33794 |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | Electric Field Imaging Device(電場成像設備) |
| 中文描述： | 電場成像設備（電場成像設備） |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 742K |
| 代理商： | MC33794 |
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33794
3
HEAT
SINK
G
HSOP PIN FUNCTION DESCRIPTION
Pin
Pin Name
Formal Name
Definition
1
V
CC
5.0 V Regulator Output
This output pin requires a 47
μ
F capacitor and provides a regulated 5.0 V for the
MCU and for internal needs of the 33794.
2, 5, 27, 43
NC
No connect
These pins may be used at some future date and should be left open.
3
AGND
Analog Ground
This pin is connected to the ground return of the analog circuitry. This ground
should be kept free of transient electrical noise like that from logic switching. Its
path to the electrical current return point should be kept separate from the return
for GND.
4
SHIELD
Shield Driver
This pin connects to cable shields to cancel cable capacitance.
6, Heat Sink
GND
Ground
This pin and metal backing is the IC power return and thermal radiator/conductor.
7
TEST
Test Mode Control
This pin is normally connected to circuit ground. There are special operating
modes associated with this pin when it is not at ground.
8–16
E1–E9
Electrode Connections
These are the electrode pins. They are connected either directly or through coaxial
cables to the electrodes for measurements. One of these electrodes can be
selected at a time for capacitance measurement. All of the other unselected
electrodes are grounded by an internal switch. The signal at the selected electrode
pin is routed to the shield driver amplifier by an internal switch. All of the coaxial
cable shields should be isolated from ground and connected SHIELD.
17, 18
REF_A,
REF_B
Reference Connections
These pins can be individually selected like E1 through E9. Unlike E1 through E9,
these pins are not grounded when not selected. The purpose of these pins is to
allow known capacitors to be measured. By using capacitors at the low and high
end of the expected range, absolute values for the capacitance on the electrodes
can be computed.
19
ISO_OUT
ISO-9141 Output
This pin translates ISO-9141 receive levels to 5.0 V logic levels for the MCU.
20
ISO_IN
ISO-9141 Input
This pin accepts data from the MCU to be sent over the ISO-9141 communications
interface. It translates the 5.0 V logic levels from the MCU to transmit levels on the
ISO-9141 bus.
V
NC
E5
E6
E7
E8
E9
REF_A
REF_B
ISO_OUT
ISO_IN
ISO-9141
LAMP_CTRL
GND
TEST
E1
E2
E3
E4
AGND
SHIELD
NC
V
PWR
NC
B
C
D
DIS_SHIELD
LAMP_MON
LAMP_SENSE
NC
LAMP_OUT
LAMP_GND
WD_IN
RST
R_OSC
LP_CAP
PWR_MON
LEVEL
SIGNAL
A
V
DD
V
MON
CLK
1
2
12
13
14
15
16
17
18
19
20
21
22
6
7
8
9
10
11
3
4
5
44
43
33
32
31
30
29
28
27
26
25
24
23
39
38
37
36
35
34
42
41
40
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC33794DH | 功能描述:IC SENSOR ELECTRIC FIELD 44-HSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| MC33794DHR2 | 制造商:Rochester Electronics LLC 功能描述:OCCUPANT DETECT E-FIELD SENSOR FOR MCU SUPPORT - Bulk |
| MC33794DWB | 功能描述:IC SENSOR ELECTRIC FIELD 54-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| MC33794DWBR2 | 功能描述:IC SENSOR ELECTRIC FIELD 54-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| MC33794EK | 功能描述:近程傳感器 ODS 54LD RoHS:否 制造商:Vishay Semiconductors 感應方式:Optical 感應距離:1 mm to 200 mm 電源電壓:2.5 V to 3.6 V 安裝風格: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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