Quectel QuecOpen AG521R-NA, Hardware Design

Page: 9 / 93

Automotive Module Series
AG521R-NA QuecOpen Hardware Design
AG521R-NA_QuecOpen_Hardware_Design 8 / 104
Figure Index
Figure 1: Functional Diagram for AG521R-NA QuecOpen
®
.................................................................................... 18
Figure 2: Pin Assignment (Top View) ....................................................................................................................... 20
Figure 3: Sleep Mode Current Consumption Diagram .............................................................................................. 38
Figure 4: Sleep Mode Application with USB Remote Wakeup ................................................................................. 38
Figure 5: Sleep Mode Application without USB Remote Wakeup ............................................................................ 39
Figure 6: Sleep Mode Application without Suspend Function .................................................................................. 40
Figure 7: Power Supply Limits during Burst Transmission ....................................................................................... 41
Figure 8: VBAT Reference Design ............................................................................................................................ 41
Figure 9: 12/24 V Power Supply System Reference Design ..................................................................................... 42
Figure 10: Turn on the Module Using Driving Circuit .............................................................................................. 43
Figure 11: Turn on the Module Using Keystroke ...................................................................................................... 43
Figure 12: Power-on Timing ...................................................................................................................................... 44
Figure 13: Turn on the Module using PON_1 ........................................................................................................... 45
Figure 14: Power-off Timing ..................................................................................................................................... 45
Figure 15: Reference Circuit of RESET by Using Driving Circuit ........................................................................... 47
Figure 16: Reference Circuit of RESET by Using Button ......................................................................................... 47
Figure 17: Timing of Resetting Module .................................................................................................................... 47
Figure 18: Reference Circuit of (U)SIM Interface with an 8-Pin (U)SIM Card Connector ...................................... 49
Figure 19: Reference Circuit of (U)SIM Interface with a 6-Pin (U)SIM Card Connector ........................................ 49
Figure 20: Reference Circuit of USB 2.0 Application ............................................................................................... 51
Figure 21: Reference Circuit of USB 3.0 Application ............................................................................................... 51
Figure 22: Reference Circuit with Translator Chip.................................................................................................... 53
Figure 23: Reference Circuit with Transistor Circuit ................................................................................................ 54
Figure 24: Reference Circuit of I2S and I2C Application with Audio Codec ........................................................... 55
Figure 25: Reference Design of SDIO Interface for eMMC Application .................................................................. 57
Figure 26: SPI Timing ............................................................................................................................................... 58
Figure 27: Simplified Block Diagram for Ethernet Application ................................................................................ 60
Figure 28: Reference Circuit of RGMII Interface with PHY Application ................................................................. 61
Figure 29: Reference Circuit for Connection with WLAN&BT PHY....................................................................... 64
Figure 30: Reference Circuit of USB_BOOT Interface............................................................................................. 66
Figure 31: Reference Circuit of RF Antenna Interfaces ............................................................................................ 69
Figure 32: Microstrip Design on a 2-layer PCB ........................................................................................................ 70
Figure 33: Coplanar Waveguide Design on a 2-layer PCB........................................................................................ 70
Figure 34: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground) ..................................... 71
Figure 35: Coplanar Waveguide Design on a 4-layer PCB (Layer 4 as Reference Ground) ..................................... 71
Figure 36: Description of the HFM Connector .......................................................................................................... 73
Figure 37: Referenced Heatsink Design (Heatsink at the Top of the Module) .......................................................... 79
Figure 38: Referenced Heatsink Design (Heatsink at the Backside of Customers’ PCB) ......................................... 79
Figure 39: Module Top and Side Dimensions ........................................................................................................... 81
Figure 40: Module Bottom Dimensions (Top View) ................................................................................................. 82
Figure 41: Recommended Footprint (Top View) ....................................................................................................... 83