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Smart Module Series
SA800U-WF Hardware Design
SA800U-WF_Hardware_Design 63 / 106
The vibrator is driven by an exclusive circuit, and a reference circuit design is shown below.
Module
VIB+
Motor
VIB-
33 pF
C1
HAP_P
HAP_M
33 pF
C2
Figure 21: Reference Circuit for Vibrator Connection
3.18. LCM Interfaces
Based on MIPI DSI standard, the video output interfaces (LCM interfaces) of SA800U-WF support
2560 × 1600 @ 60 fps VESA DSC 1.1 primary display with 4 lanes. Additionally, with a MIPI to HDMI
converter (LT9611 is recommended), its 8 lanes can support QUXGA display (resolution: 3840 × 2160).
The module supports dual-LCD independent display: default - DSI + DP (over USB Type-C), optional -
DSI0 + DSI1. Please note that DSI1 does not support screens with command mode.
Table 21: Pin Definition of LCM Interfaces
Pin Name
Pin No.
I/O
Description
Comment
LDO14A_1V88
J4-9
PO
1.8 V output for IOVDD of
LCDs
Vnom = 1.8 V
I
O
max = 50 mA
LCD_RST
J2-62
DO
LCD reset
Active low.
1.8 V power domain.
LCD_TE
J2-60
DI
LCD tearing effect
1.8 V power domain.
DSI0_CLK_N
J2-26
AO
LCD0 MIPI clock (-)
100
Ω differential
impedance.
DSI0_CLK_P
J2-28
AO
LCD0 MIPI clock (+)
DSI0_LN0_N
J2-38
AO
LCD0 MIPI lane 0 data (-)
DSI0_LN0_P
J2-40
AO
LCD0 MIPI lane 0 data (+)
DSI0_LN1_N
J2-32
AO
LCD0 MIPI lane 1 data (-)