Product Info

LTE-A Module Series
EM121R-GL Hardware Design
EM121R-GL Hardware Design 8 / 80
Table Index
Table 1: Special Mark................................................................................................................................. 13
Table 2: Frequency Bands and GNSS Types of EM121R-GL .................................................................. 14
Table 3: Key Features of EM121R-GL ....................................................................................................... 15
Table 4: Definition of I/O Parameters ......................................................................................................... 20
Table 5: Pin Description ............................................................................................................................. 20
Table 6: Overview of Operating Modes ..................................................................................................... 25
Table 7: Definition of VCC and GND Pins ................................................................................................. 27
Table 8: Pin Definition of FULL_CARD_POWER_OFF# ........................................................................... 30
Table 9: Turn-on Timing of the Module ...................................................................................................... 30
Table 10: Turn-off Timing of the Module .................................................................................................... 31
Table 11: Pin Definition of RESET# ........................................................................................................... 31
Table 12: Reset Timing of the Module ....................................................................................................... 33
Table 13: Pin Definition of (U)SIM Interfaces ............................................................................................ 34
Table 14: Pin Definition of USB Interface .................................................................................................. 39
Table 15: Pin Definition of PCIe Interface .................................................................................................. 41
Table 16: Power-up Timing of M.2 Specification ....................................................................................... 43
Table 16: PCIe Turn-on Timing of the Module ........................................................................................... 44
Table 17: PCIe Turn-off Timing through FULL_CARD_POWER_OFF# ................................................... 45
Table 18: PCIe Reset Timing ..................................................................................................................... 46
Table 19: Pin Definition of PCM Interface .................................................................................................. 48
Table 20: Pin Definition of Control and Indication Interfaces..................................................................... 49
Table 21: RF Function Status .................................................................................................................... 49
Table 22: GNSS Function Status ............................................................................................................... 50
Table 23: Network Status Indications of WWAN_LED# ............................................................................ 51
Table 24: State of the WAKE_ON_WAN# ................................................................................................. 52
Table 25: Function of the DPR Signal ........................................................................................................ 52
Table 27: Pin definition of WLAN_PA_EN for EM121R-GL ....................................................................... 53
Table 28: Pin Definition of COEX Interface ............................................................................................... 53
Table 29: Pin Definition of Antenna Tuner Control Interface through GPIOs ............................................ 53
Table 30: Pin Definition of Antenna Tuner Control Interface through RFFE ............................................. 54
Table 33: List of EM121R-GL Configuration Pins ...................................................................................... 54
Table 34: Pin Definition of EM121R-GL Configuration Pins ...................................................................... 54
Table 35: EM121R-GL Connector Definition of Antenna Interfaces.......................................................... 56
Table 37: Operating Frequency of EM121R-GL ........................................................................................ 56
Table 38: EM121R-GL Dual-Antenna Conducted Receiving Sensitivity ................................................... 58
Table 40: EM121R-GL RF Output Power of PCIe Only Version ............................................................... 59
Table 41: EM121R-GL RF Output Power of USB Version ........................................................................ 61
Table 35: EM121R-GL Connector Definition of Antenna Interfaces.......................................................... 63
Table 42: GNSS Frequency ....................................................................................................................... 63
Table 43: EM121R-GL GNSS Performance .............................................................................................. 64
Table 44: Major Specifications of the RF Connector ................................................................................. 66