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- BCR402R - what is the purpose of Rext in this LED driver?
2 If I omit Rext, should I leave pin 4 open or connect to +Vs? BCR402R old datasheet - Newer datasheet (My thoughts: I expect that pin 4 is normally left unconnected, and Rext either allows to get more than 20 mA current from the driver, or it moves the heat out of the LED driver to an external resistor to get better cooling of the LED driver )
- LPC546xx: USB1_REXT when USB1 is unused - NXP Community
Should I connect USB1_REXT pin to an external resistor even when USB1 is not used on the board? What happens if UDB1_DM USB1_DP USB1_REXT are not connected, while USB1 VDD signals (USB1_AVDDC3V3, USB1_AVDDTX3V3, USB1_VBUS) are tied to VDD? I found recommended connections of some unused pins in the datasheet, but USB1_REXT is not descripted
- IOMux_TOOL 3. 4. 0. 3, power fields CSI_REXT DSI_REXT
It means changing the voltage level in the field CSI_REXT DSI_REXT, which is by default "0 000" If I am supposed to enter a value (voltage level value), then there should be a voltage level specification for CSI_REXT DSI_REXT pins somewhere
- How to decide Rext size on STM32 crystal design?
The Rext is not to overstress the crystal You need to be able to accurately measure the crystal current first Jim Williams IIRC had an app note about that Once you know what the actual crystal current is, you'll know whether you're driving it within the spec or not, and whether Rext is needed The value can be determined experimentally easily
- How to do with PCIE_REXT and HDMI_REF when not use PCIE HDMI on imx6solo?
HI, How to do with PCIE_REXT and HDMI_REF when not use PCIE HDMI on imx6solo? Can the R of PCIE_REXT and HDMI_REF be not stuff? PCIE_RX to be gnd by C?
- CSI_REXT pin of i. MX6Q - NXP Community
Hello, We made a custom i MX6 board with a MIPI interface But, unfortunately we din't connect the resistor ( 6 04K) to CSI_REXT pin Will the D-PHY of i MX6 MIPI receiver be able to receive MIPI signals without this resistor being connected? Is there anything we can try to receive MIPI signals ot
- Re: Power domain of PCIE_REXT pin - NXP Community
Hi Q1 PCIE_REXT pin belong to VDD_PCIE0_1P0 according to table 114's description but, I could not find same name in Table 113 Which name is correct information for power domain of PCIE_REXT pin? This pin is the resistor external of the PCIe interface, which is used to connect a resistor This r
- Inquiry About Rext Range for PCA9956B - NXP Community
Dear NXP Support Team, I am currently designing a circuit using the PCA9956B LED driver and would like to clarify the recommended range for the external resistor Rext used to set the LED output current Specifically, I am unable to find the minimum and maximum values for Rext in the PCA9956B datas
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