Thundercomm Qualcomm Robotics RB5 - Power Supplies; Secondary Low Speed Connector: LS2

Robotics RB5 Development Kit Hardware User Manual
Copyright© 2020 Thundercomm Technology Co., Ltd. All rights reserved.
19
4.1.7 Power Supplies
The 96Boards specification calls for three power rails to be present on the low-speed
expansion connector:
 +1.8 V: Max of 100mA
 +5 V: Able to provide a minimum of 5 W of power (1A).
 SYS_DCIN: 9-18 V input with enough current to support all the board functions or the
output DCIN from onboard DC connector able to provide a minimum of 7 W of
power.
 RB5 supports these requirements as follows:
 +1.8 V: Driven by PMIC PM8250 VREG_S4A_1P8, which can provide 100mA.
 +5 V: Driven by the 4A 5.0 V DC to DC converter. The buck can provide at least
current of 2A to the low-speed expansion connector to meets the 96Boards
requirements.
 DC12V: DC jack input can serve as the main power source.
4.2 Secondary Low Speed Connector: LS2
PIN
RB5 Signal
Additional Info
1
GPIO_U
CAM3_RST_N
3
DMIC_CLK1_LS2
5
DMIC_DATA1_LS2
7
GPIO_V
I2S1_DATA2/ext
codec/CAM0_STROBE_N
9
DMIC_CLK2
11
DMIC_DATA2
13
GPIO_W
I2S1_DATA3/ext
codec/CAM5_RST_N
15
DMIC_CLK3
17
DMIC_DATA3
19
PM_GPIO-F
PM8250_GPIO3
21
CCI_I2C_SCL2
23
CCI_I2C_SDA2
25
CCI_I2C_SCL3
27
SPK0_P
29
SPK0_M
31
SPK1_P
33
SPK1_M
35
CCI_I2C_SDA3
37
PM_GPIO-E
PM8250 AMUX1/MDM SKIN THERM