Cavli Wireless C16QS - Page 9

9
www.cavliwireless.com
C16QS Hardware Manual
Table of Figures
Figure 1 C16QS Functional Block Diagram ............................................................................................................. 14
Figure 2 C16QS module Interface definition (top view) ......................................................................................... 17
Figure 3 VBAT power supply ..................................................................................................................................... 22
Figure 4 LDO linear power reference circuit ........................................................................................................... 23
Figure 5 Power-on reference circuit ......................................................................................................................... 24
Figure 6 Reset reference circuit ................................................................................................................................ 25
Figure 7 USB connection design circuit diagram ..................................................................................................... 26
Figure 8 Full-featured serial port design .................................................................................................................. 29
Figure 9 UART serial port design............................................................................................................................... 30
Figure 10 Level conversion chip circuit .................................................................................................................... 30
Figure 11 USIM design circuit diagram..................................................................................................................... 31
Figure 12 Net light circuit diagram ........................................................................................................................... 34
Figure 13 STATUS Pin Reference Circuit ................................................................................................................. 35
Figure 14 I2C interface reference circuit diagram .................................................................................................. 37
Figure 15 Main antenna matching circuit ................................................................................................................. 38
Figure 16 GNSS active antenna matching circuit .................................................................................................... 39
Figure 17 GNSS passive antenna matching circuit .................................................................................................. 40
Figure 18 Coplanar antenna ...................................................................................................................................... 41
Figure 19 The complete structure of the two-layer PCB microstrip line .............................................................. 41
Figure 20 The complete structure of the multilayer PCB strip line ....................................................................... 42
Figure 21 RF connector size chart ............................................................................................................................. 42
Figure 22 Antenna connector matching plug diagram ............................................................................................ 43
Figure 23 Matching coaxial RF line size .................................................................................................................... 43
Figure 24 Multi GNSS receiver Block diagram ........................................................................................................ 45
Figure 25 GNSS VRTC Input ...................................................................................................................................... 46
Figure 26 Top view and bottom view of the module ............................................................................................... 55
Figure 27 Front view and side view of the module (unit: mm) ............................................................................... 56
Figure 28 Bottom view of the module (unit: mm) .................................................................................................... 57
Figure 29 Recommended Footprint (Top View) (unit: mm) .................................................................................... 58
Figure 30 Ordering Information ................................................................................................................................ 59
Figure 31 C16QS Tape Measurements (in mm) ....................................................................................................... 61
Figure 32 Reel Dimensions of C16QS (in mm) ......................................................................................................... 62
Figure 33 Reflow soldering temperature graph ...................................................................................................... 63