Smart LTE Module Series
SC600Y&SC600T Hardware Design
SC600Y&SC600T_Hardware_Design 69 / 128
DSI1_CLK_P
LEDA
NC
LEDK
LPTE
NC (SDA-TP)
VIO18
NC (VTP-TP)
DSI1_LN3_P
LCD1_TE
LCD1_RST
DSI1_LN3_N
DSI1_LN2_P
DSI1_CLK_N
DSI1_LN2_N
RESET
LCD_ID
NC (SCL-TP)
NC (RST-TP)
NC (EINT-TP)
GND
VCC28
GND
MIPI_TDP3
MIPI_TDN3
GND
MIPI_TDP2
MIPI_TDN2
GND
MIPI_TDP1
MIPI_TDN1
GND
LDO17_2P85
LDO6_1P8
L
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
MIPI_TDP0
MIPI_TDN0
GND
MIPI_TCP
MIPI_TCN
29
28
30
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
DSI1_LN1_N
DSI1_LN1_P
DSI1_LN0_N
DSI1_LN0_P
1
2
3
4
5
6
11
1
2
1
2
1
2
1
2
100nF
4.7 uF
1 uF
Module
LCM
FL1
FL2
FL3
FL4
FL5
EMI filter
C3
C2
C1
NC
GND
GND
GND
GND
PMU_MPP2
31
32
33
34
LCM1_LED-
Figure 21: Reference Circuit Design for LCM1 Interface
MIPI are high speed signal lines. It is recommended that common-mode filters should be added in series
near the LCM connector, so as to improve protection against electromagnetic radiation interference.
When compatible design with other displays is required, please connect the LCD_ID pin of LCM to the
module’s ADC pin, and please note that the output voltage of LCD_ID cannot exceed t
he voltage range of
ADC pin.
Backlight driving circuits should be designed for LCMs. SC600 provides backlight driving output which
can be used to drive LCM backlight WLEDs directly. The features are listed below:
⚫
Use the high voltage output (LCD_BL_A) for powering WLED strings, and the output voltage can be
configured from VBAT to 29.5V.
⚫
Support 4 current sinks (LCD_BL_K1, LCD_BL_K2, LCD_BL_K3, LCD_BL_K4,), with maximum sink
current up to 25mA for each.