參數(shù)資料
型號(hào)： EM4022V18WS11
英文描述： 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; Temperature Range: 0&degC to 70°C; Package: 8-SOIC
中文描述： 模擬雜項(xiàng)
文件頁(yè)數(shù)： 1/15頁(yè)
文件大?。?/td> 277K
代理商： EM4022V18WS11
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)
相關(guān)PDF資料
PDF描述
EM4022V19WS11 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; Temperature Range: 0&degC to 70°C; Package: 10-DFN
EM4022V20WS11 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; Temperature Range: -40°C to 85°C; Package: 8-SOIC
EM4022V21WS11 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; Temperature Range: -40°C to 85°C; Package: 10-DFN
EM4022V10WS11 Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability; Temperature Range: -40°C to 85°C; Package: 28-QFN
EM4022V11WS11 Analog Miscellaneous
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EM4022V19WS11 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
EM4022V20WS11 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
EM4022V21WS11 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
EM4025 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Read Only Contactless Identification Device with Anticollision
EM4026 制造商:EMMICRO 制造商全稱:EM Microelectronic - MARIN SA 功能描述:Read only Contactless Identification Device
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