Microchip Technology ATSAMA5D27-WLSOM1, Manual

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Figure 4-33. CLASS-D Interface Example Schematic
3
1
2
SSM3J56ACT
Q
3
1
2
SSM3K56ACT
Q
10000pF
25V
C
1N4148W
D
10k
R
22R
R
22R
R
10k
0402
R
10uF
25V
C
10uF
25V
C
10uF
25V
C
10uF
25V
C
GND GND
GND
3
1
2
SSM3J56ACT
Q
3
1
2
SSM3K56ACT
Q
10000pF
25V
C
1N4148W
D
10k
R
22R
R
22R
R
10k
R
GND GND
BLM18PG181SN1D
FB
BLM18PG181SN1D
FB
1
2
3
4
TERMINAL 1x4
J
GND
MAIN_VOLT
CLASSD_R0
CLASSD_R1
CLASSD_R2
CLASSD_R3
(Up to 12V)
PB3
78
PB1
80
PB2
79
PB4
77
ATSAMA5D27-WLSOM1
U1
4.6.8 QTouch
®
Peripheral Touch Controller (PTC)
For details on implementing the PTC, refer to the documents listed below:
Title Document Type Literature Number
QTAN0079 – Buttons, Sliders and Wheels Sensor Design Guide Design Guide 10752
AN_2585: Implementing a QTouch PTC Subsystem on SAMA5D2 MPU Application Note DS000002585
AN_2472: QTouch on SAMA5D2 MPU Application Note DS000002472
4.6.9 Interfacing with an LCD
4.6.9.1 Design Schematic Example
The ATSAMA5D27-WLSOM1 features an 18-bit RGB LCD interface.
The figure below is a schematic example at main board level illustrating the interface with the AC32005 Microchip
display module (WVGA LCD display module with maXTouch
®
technology).
In this example, several interfaces are used:
• LCD _xxx signals for display
• one SPI interface for display configuration
• one TWI interface for maXTouch and QTouch device control
• two IRQ I/Os for capacitive touch and buttons interruption
SAMA5D27 Wireless SOM1
Functional Description
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2021 Microchip Technology Inc.
and its subsidiaries
Complete Datasheet
DS60001590D-page 44