NXP Semiconductors
UM12036
MCX-N9XX-EVK Board User Manual
2.10 Visible light sensor interface
On the MCX-N9XX-EVK board, one phototransistor is provided, which connects to the ADC input channel
ANA_4 of the target device (MCX N94X) for evaluating the ADC module.
Table 20 provides the detail of the light sensor device on the board.
Part identifier Manufacturer and part name Description
Q10 Everlight ALS-PT19-315C/L177/
TR8
It is a low-cost ambient light sensor, consisting of phototransistor in
miniature SMD.
Table 20. Light sensor device
Figure 23. Light sensor circuit diagram
The light sensor output is not shared with other GPIO or devices and is connected via a high-speed analog
channel. The light sensor can be isolated from the MCX N94X device by cutting the shorting link SH1.
The input voltage to the light sensor is VDDA through jumper connection JP34 to allow for removing the light
sensor from any current measurements being made. For the JP34 jumper details, see Section 1.6. If VDDA is
more than the configured VREFH, the maximum voltage the ADC can convert is that of VREFH.
If no light reaches the light sensor, a small current is drawn from VDDA.
2.11 M.2 interface
The MCX-N9XX-EVK board features a M.2 Key E mini card 75-pin connector (J12) for Wi-Fi support. The M.2
mini card connector supports USB, SDHC, I2S, UART, I2C, and GPIO connections. The connector can be used
for Wi-Fi/Bluetooth card, 802.15.4 Radio, or 3G/4G card.
This card connector supports the Murata Wi-Fi card module, which is based on an NXP IW416 chip supporting
dual-band 1x1 Wi-Fi 4 and Bluetooth 5.2.
Figure 24 shows the M.2 connector interface circuit diagram.
UM12036 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
31 / 51
To Next Page
Loading...
