参数资料
型号: EVB90121
厂商: Melexis Technologies NV
文件页数: 6/8页
文件大小: 0K
描述: BOARD EVAL FOR MLX90121
标准包装: 1
类型: 收发器
频率: 13.56MHz
适用于相关产品: MLX90121
已供物品: 评估板
产品目录页面: 571 (CN2011-ZH PDF)
EVB90121
MLX90121 Evaluation Board
4 Guidelines
This chapter describes all connections and jumpers available on the EVB90121 circuit to be able to use it in
the most efficient way.
4.1 Power supply
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The circuit can be supplied with a standard DC supply block (transformer or switch mode power supplies)
connected to the jack connector J1 . The input supply can be selected from 6 to maximum 9 volts DC to
avoid permanent damage of the evaluation board.
The internal power supply of the board can be selected between 3 Volts and 5 Volts DC by changing the
position of the jumper J3 .
4.2 Antenna connection
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The SMA screw connector JP1 allows the connection of a 50-ohm antenna. The matching network is
adjusted with CV1 capacitor on a prefect 50-ohm load. This will give maximum power up to 250mWatt to
the connected antenna.
4.3 Connection to a microcontroller
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All digital Inputs/Outputs of the MLX90121 device are available on the JP2 connector. This allows easy
connection to a microcontroller. Following table is the description of JP2 connector.
Pin number (connector JP2)
1
2
3
4
5
6
7
8
9
10
Name
DOUT
-
DIN
RTB
MODE
CK
DSYNC
-
GND
-
Description
Data Output
Not connected
Data Input
Reception or Transmission selection Input
Configuration or Communication selection Input
Serial Clock Input
Synchronization Output
Not connected
Ground
Not connected
Table 2: Connector JP2
390129012101
Rev. 003
Page 6 of 8
Evaluation Board
Sept. - 09
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