Smart LTE Module Series
SC650T Hardware Design
SC650T_Hardware_Design 67 / 131
TP_RST
TP_I2C_SCL
TP_I2C_SDA
TP_INT
1
2
3
4
5
6
2.2K
2.2K
LDO 6_1P8
4.7uF 100nF
Module
RESET 1.8V
SCL 1.8V
SDA 1.8V
INT 1.8V
GND
VDD 2.8V
TP
R2
R1
C1
C2
D1
D2
D3
D4
D5
LDO10_2P8
Figure 22: Reference Circuit Design for Touch Panel Interfaces
TP is powered by LDO10_2P8 by default and LDO10_2P8 can output 150mA current. It is recommended
to use an external LDO power supply if dual-TP or other applications need to be supported.
3.21. Camera Interfaces
Based on standard MIPI CSI input interface, SC650T module supports 2 cameras (4-lane + 4-lane ), with
maximum pixels up to 24MP. The video and photo quality are determined by various factors such as
camera sensor, camera lens quality, etc.
Table 22: Pin Definition of Camera Interfaces
Pin Name
Pin No.
I/O
Description
Comment
LDO2_1P1
13
PO
1.1V output power supply
for digital core circuit of
rear camera
Vnorm=1.1V
I
O
max=1200mA
LDO6_1P8
10
PO
1.8V output power supply
for digital I/O circuit of
camera
Vnorm=1.8V
I
O
max=300mA
LDO17_2P85
12
PO
2.85V output power supply
auto focus circuit
Vnorm=2.85V
I
O
max=300mA
LDO22_2P8
14
PO
2.8V output power supply
for AVDD of cameras
Vnorm=2.8V
I
O
max=150mA
LDO23_1P2
15
PO
1.2V output power supply
Vnorm=1.2V
NOTE
