Yuga CLM920 TE5 LTE Module Hardware Manual

CLM920_TE5 LTE Module Hardware Manual
5
YUGA Information Technology Co.,Ltd
Figure Index
Figure 2- 1 CLM920_TE5 Functional Diagram ........................................................................................... 11
Figure 3- 1 TOP and BOTTOM of Goldfinger ............................................................................................... 12
Figure 3- 2 TOP and BOTTOM of Goldfinger Detail A&B .......................................................................... 13
Figure 3- 3 GSM TDMA Power Supply Voltage Drop ................................................................................. 16
Figure 3- 4 VBAT Power Supply .................................................................................................................... 17
Figure 3- 5 Reference Design of LDO linear power supply ........................................................................ 17
Figure 3- 6 Reference Design of DC switching power supply ................................................................... 17
Figure 3- 7 Reference Design of PMOS tube to control the power switch .............................................. 18
Figure 3- 8 Power-on sequence diagram ...................................................................................................... 19
Figure 3- 9 Reset Reference Circuit .............................................................................................................. 20
Figure 3- 10 RESET sequence diagram ....................................................................................................... 20
Figure 3- 11 USB design circuit diagram ...................................................................................................... 21
Figure 3- 12 UART serial port design ............................................................................................................ 22
Figure 3- 13 Level conversion circuit ............................................................................................................. 23
Figure 3- 14 USIM design circuit .................................................................................................................... 23
Figure 3- 15 Hot plugging of the USIM card ................................................................................................. 24
Figure 3- 16 WAKEUP_OUT signal wave .................................................................................................. 25
Figure 3- 17 network indicator circuit diagram ............................................................................................. 26
Figure 3- 18 Analog voice reference circuit .................................................................................................. 27
Figure 3- 19 External audio codec reference circuit .................................................................................... 27
Figure 3- 20 PCM short mode sequence diagram ....................................................................................... 29
Figure 3- 21 RF connector location map ....................................................................................................... 29
Figure 3- 22 RF connector dimensions ......................................................................................................... 30
Figure 3- 23 Recommended Coaxial RF Cable Dimensions ..................................................................... 30
Figure 3- 24 Antenna matching circuit ........................................................................................................... 31
Figure 3- 25 Received signal strength with and without diversity antenna .............................................. 31
Figure 6- 1 CLM920_TE5 appearance .......................................................................................................... 39
Figure 6- 2 Connector dimensions ................................................................................................................. 39