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
