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Original question:

AM6442: 25MHz Crystal logic level for HFOSC

TDA4VEN-Q1: TDA4VEN-Q1: 25MHz Crystal logic level for HFOSC

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Prodigy 210 points

Part Number: TDA4VEN-Q1

1. When we tested the 25MHz crystal waveform of the TDA4VEN-Q1, VIH was 1.034V, which failed and does not meet the electrical characteristics requirement of 0.65*VDDS_OSC0 = 1.17V specified in section 6.6.3 High-Frequency Oscillator (HFOSC) of the manual.
2. In addition, VIL was -0.53V, which exceeds the MCU_OSC0_XI IO tolerance of -0.3V. Is there a risk?

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3. Can we refer to the answer on E2E that for the crystal, we do not need to pay attention to the actual VIH & VIL values, only the Vpp is important?

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1316040/am6442-25mhz-crystal-logic-level-for-hfosc?tisearch=e2e-sitesearch&keymatch=HFOSC#

4. The digital levels provided in the datasheet only apply when sourcing a reference clock from an LVCMOS clock source. They are not applicable to the VIH & VIL requirements of a crystal circuit?

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