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參數資料
| 型號： | EM4022V12WS11 |
| 英文描述： | 6A Dual Synchronous Buck Regulator with Integrated MOSFETs; Temperature Range: -40°C to 85°C; Package: 50-QFN |
| 中文描述： | 模擬雜項 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 277K |
| 代理商： | EM4022V12WS11 |
Copyright
2002, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
EM MICROELECTRONIC - MARIN SA
EM4022
Multi Frequency Contactless Identification Device
Anti-Collision compatible with BTG's Supertag Category Protocols
Description
The EM4022 (previously named P4022) chip implements
patented anti-collision protocols for both high frequency
and low frequency applications. It is even possible to
identify transponders with identical codes, thereby
making it possible to count identical items. The chip is
typically used in “passive” transponder applications, i.e. it
does not require a battery power source. Instead, it is
powered up by an electromagnetic energy field or beam
transmitted by the reader, which is received and rectified
to generate a supply voltage for the chip.
A pre-
programmed code is transmitted to the reader by varying
the amount of energy that is reflected back to the reader.
This is done by modulating an antenna or coil, thereby
effectively varying the load seen by the reader.
Typical Applications
Access control
Animal tagging
Asset control
Sports event timing
Licensing
Electronic keys
Auto-tolling
Features
Implements all BTG anti-collision protocols:
Fast SWITCH-OFF, SLOW-DOWN, and
FREE-RUNNING
Can be used to implement low frequency
inductive coupled transponders, high frequency
RF coupled transponders or bi-frequency
transponders
Reading 500 transponders in less than one
second for high frequency applications
Factory programmed 64 bit ID number
Data rate options form 4 kbit/s to 64 kbit/s
Manchester data encoding
Any field frequency: Typically 125 kHz, 13.56
MHz inductive and 100 MHz to 2.54 GHz RF
Data transmission done by amplitude
modulation
Trimmed 110 pF ± 3% on-chip resonant
capacitor
On-chip oscillator, rectifier and voltage limiter
Low power consumption
Low voltage operation : down to 1.5 V at
ambient temperature
-40 to +85
°C operating temperature range
Pin Assignment
1
2
38
9
10
11
57
EM4 022
46
Fig. 1
Pad N°
Name
Function
1
XCLK
external test clock input
2VDD
positive supply
3
M
connection to antenna
4MTST
test output
5
COIL1
Coil terminal 1
6
COIL2
Coil terminal 2
7VSSTST
negative test supply output
8VSS
negative supply
9
GAP
GAP input
10
SI
Serial test data input (pull down)
11
TMC
Test mode control (pull down)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| EM4022V13WS11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Multi Frequency Contactless Identification Device Anti-Collision compatible with BTG Supertag Category Protocols |
| EM4022V14WS11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Multi Frequency Contactless Identification Device Anti-Collision compatible with BTG Supertag Category Protocols |
| EM4022V15WS11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Multi Frequency Contactless Identification Device Anti-Collision compatible with BTG Supertag Category Protocols |
| EM4022V16WS11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Multi Frequency Contactless Identification Device Anti-Collision compatible with BTG Supertag Category Protocols |
| EM4022V17WS11 | 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Multi Frequency Contactless Identification Device Anti-Collision compatible with BTG Supertag Category Protocols |
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