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L9663 Arkusz danych(PDF) 46 Page - STMicroelectronics

Numer części L9663
Szczegółowy opis  PSI5 Transceiver IC
PDF  104 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9663 Arkusz danych(HTML) 46 Page - STMicroelectronics

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Diagnosis
L9663
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DocID028693 Rev 1
The sync pulses(i) are monitored for under voltage, duration and rising edge transient
speed. The circuit evaluates the output voltage versus internal sync trigger signal and sets
the corresponding bit(s) in Status Register 1 (SR1):
Bit SYNCx_SLOW if a delayed sync pulse or pulse with Vt2< 2.5V /3.5V was generated
(slow Vsync rising time)
Bit SYNCx_UV if the sync pulse amplitude goes below 2.5V/3.5V for a time longer than
the specified filtering time (spec parameter tAsync_V).
STB is detected by the over voltage monitoring (see Section 4.4).
i.
For sync pulse triggering via pin see errata n.1822, Section 7: Errata



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