User's Manual
Table Of Contents
- RF Exposure Statement:
- Copyright
- Contents
- Table Index
- Figure Index
- Revision History
- 1Introduction
- 2Package Information
- 3Interface Application
- 4RF Specifications
- 5Electrical Specifications
- 6SMT Production Guide
- 7Packaging
- Appendix
A7608SA-H_User Manual_V1.00
2022-08-26
Smart Machine Smart Decision
Figure 19: USIM interface reference circuit
Note: USIM_DATA has been pulled up with a 100KΩ resistor to USIM_VDD in module. A
100nF capacitor on USIM_VDD is used to reduce interference. For more details of AT
commands about USIM, please refer to document [1].USIM_CLK is very important signal, the
rise time and fall time of USIM_CLK should be less than 40ns, otherwise the USIM card might
not be initialized correctly.