Usb; Table 22: Line Length Of Usb Inside The Module - Sunsea AIoT SIMCom SIM5800 Hardware Design

Pin
52 MIPI_DSI_CLKN
53 MIPI_DSI_CLKP
54 MIPI_DSI_L0N
55 MIPI_DSI_L0P
56 MIPI_DSI_L1N
57 MIPI_DSI_L1P
58 MIPI_DSI_L2N
59 MIPI_DSI_L2P
63 MIPI_CSI0_CLKN
64 MIPI_CSI0_CLKP
65 MIPI_CSI0_L0N
66 MIPI_CSI0_L0P
67 MIPI_CSI0_L1N
68 MIPI_CSI0_L1P
70 MIPI_CSI1_CLKN
71 MIPI_CSI1_CLKP
72 MIPI_CSI1_L0N
73 MIPI_CSI1_L0P
5.2.5

USB

 90 Ω differential, ± 10% trace impedance

Differential data pair matching < 6 mm

External components should be located near the USB connector.

Should be routed away from sensitive circuits and signals.

If there are test points, place them on the trace to keep branches as short as possible

If USB connector is used as the charger input, USB_VBUS node must be routed to the module using
extremely wide traces or sub planes.
About the length, please refer to the inner length of module in the following table to achieve the above
requirements:
Table 22: Line length of USB inside the module
Pin
13 USB_DM
14 USB_DP
5.2.6 SD

Protect other sensitive signals/circuits from SDC corruption.

Protect SDC signals from noisy signals (clocks, SMPS, etc.).

Up to 200 MHz clock rate
 50 Ω nominal, ± 10% trace impedance

CLK to DATA/CMD length matching < 1 mm
 30–35 Ω termination resistor on clock lines near the module
SIM5800_Hardware Design_V1.01
Smart Machine Smart Decision
Signal
Signal Length(mm)
46
Error in length （P-N）
Length(mm)
12.04
12.18
12.98
13.40
12.48
11.93
13.50
13.39
18.78
19.11
18.90
19.38
19.63
20.19
22.89
22.37
23.71
23.39
Error Length（P-M）
47.46
47.61
0.14
0.42
-0.55
-0.11
0.33
0.48
0.56
-0.52
-0.32
0.15
2018-10-08