Smart Machine Smart Decision
SIM5320JE-TE_Hardware Design_V1.01
2012-07-10
59
the application to the RF receiver in the receiver band. RF emissions interfere with audio input/output. It is
recommended to shield the sensitive components and trace with common ground and user can add beads
where necessary.
Normally SIM5320JE-TE is mounted on customer host board. Although some ESD components have been
added in SIM5320JE-TE, to prevent ESD, user should put some ESD components on customers’ board.
The ESD components should be placed beside the connectors which human body might touch, such as
SIM card holder, audio jacks, switches, keys, etc. The following table is the SIM5320JE-TE ESD
measurement performance; the results are from SIMCom EVB test.
Table 45: The ESD performance measurement table (Temperature: 25
, Humidity:
℃
45%)
Part
Contact discharge
Air discharge
VBAT,GND
±4KV
±6KV
UART,USB
±2KV
±6KV
Antenna port
±4KV
±6KV
Other ports
±2KV
±2KV
