SPRUJ40C may 2022 – may 2023
Clock inputs required for peripherals such as XDS110, USB HUB, FT4232, HDMI Transmitter and Audio Codec are generated locally using separate crystals or oscillators. Crystals or Oscillators used to provide the reference clocks to the EVM peripherals are shown in the table bellow.
Peripheral | Mfr. Part No. | Description | Frequency |
---|---|---|---|
XDS110 emulator | ECS-.327-9-34QCS-TR | CRY 32.768 KHz 9pF SMD | 32.768 KHz |
FT4232 Bridge | ECS-120-18-30B-AGN-TR | CRY 12.000 MHz 18pF SMD | 12.000 MHz |
Audio Codec | KC2520Z12.2880C1KX00 | OSC 12.288 MHz CMOS SMD | 12.288 MHz |
USB HUB (E1 Only) | ECS-240-20-30B-AGL-TR | CRY 24.000 MHz 20pF SMD | 24.000 MHz |
HDMI Transmitter | KC2520Z12.2880C1KX00 | OSC 12.288 MHz CMOS SMD | 12.288 MHz |
The clock required by the HDMI Transmitter can be provided by either the on board oscillator or the SoC’s AUDIO_EXT_REFCLK1, which can be selected through a resistor mux. SoC’s EXT_REFCLK1 is used to provide clock to the User Expansion Connector on the SKEVM. The 32 KHz clock to the Wilink module is provided by WKUP_CLKOUT0 of AM62x SoC through a voltage translational buffer.