Smart Module Series
SA800U-WF Hardware Design
SA800U-WF_Hardware_Design 68 / 106
A reference design for touch panel interface is shown below.
TP_RST
TP_I2C_SCL
TP_I2C_SDA
TP_INT
1
2
3
4
5
6
2. 2 K
2. 2 K
4.7
μ
F
100 nF
Module
RESET
SCL
SDA
INT
GND
VDD
TP
R 2
R 1
C 1
C 2
D 1
D 2
D 3
D 4
D 5
LDO28A_3V0
LDO14A_1V88
Figure 25: Reference Circuit Design for Touch Panel Interface
3.20. Camera Interfaces
Based on standard MIPI CSI input interface, SA800U-WF supports 4 cameras (4-lane + 4-lane + 4-lane +
2-lane), with maximum pixels up to 32 MP. The 2-lane MIPI CSI can only receive data of RAW format. It
can be used for ToF/3D camera modules and cannot be used for display. The video and photo quality are
determined by various factors such as camera sensor, camera lens quality, etc.
Table 23: Pin Definition of Camera Interfaces
Pin Name
Pin No.
I/O
Description
Comment
LVS1A_1V8
J1-149
PO
1.8 V output for IOVDD of cameras
Vnom = 1.8 V
I
O
max = 300 mA
CSI0_CLK_N
J1-30
AI
MIPI clock of camera 0 (-)
100
Ω differential
impedance.
CSI0_CLK_P
J1-28
AI
MIPI clock of camera 0 (+)
CSI0_LN0_N
J1-22
AI
MIPI lane 0 data of camera 0 (-)
CSI0_LN0_P
J1-24
AI
MIPI lane 0 data of camera 0 (+)
CSI0_LN1_N
J1-16
AI
MIPI lane 1 data of camera 0 (-)
CSI0_LN1_P
J1-18
AI
MIPI lane 1 data of camera 0 (+)
