User Manual

ZTK7628P-core-board manual Hangzhou Jotale Technology Co., Ltd www.jotale.com
Note: “ZTK7628P_convert_board_xxxx.PcbLib” (xxxx is version number) ZTK7628P module PCB
package library is provided inside。
4. Base board reference design Recommend package
4.1. Power circuit
The power supply voltage of the core board is 3.3V and the average current is about 185mA.
In order to ensure the stable operation of the core board, a current of at least 500mA should be
reserved for the module (depending on the actual application). The figure below is the design of
3.3V power supply of JS7628 base board
1.16mm
0.8mm
1.9mm
1.27mm
32.5mm
19.5mm
2.765mm