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BA7657F Datasheet(PDF) 7 Page - Rohm |
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BA7657F Datasheet(HTML) 7 Page - Rohm |
7 / 17 page 7/16 ●Description of operations BA7657S/F 1) Analog SW block Two channels of RGB signals can be switched. I/O relations IN1 can be selected when high-level voltage is applied to the CTL pin, and IN2 can be selected when low level voltage is applied. 2) Digital SW block This block switches between two channels of HD and VD synchronization signals. HD and VD synchronization signals are output for IN1 when high-level voltage is applied to the CTL pin, and these signals are output for IN2 when a low-level voltage is applied to the CTL pin. 3) Synchronization signal separation block This block separates composite signals (Sync on Green) and synchronization signals and outputs positive-electrode composite synchronization signals. When an HD signal is being input, the synchronization signal detector operates and stops the synchronization signal separation circuit. A low-level output voltage is used for output. The time at which the synchronization signal separation circuit will be stopped can be set using external time constants for the circuit detection pin. ●Application circuit BA7657S/F Fig.2 Input Output HD VD Sync on Green HD VD Composite Sync - - ○ - - ○ ○ - ○ ○ - - - ○ ○ - ○ ○ ○ ○ ○ ○ ○ - ○ - - ○ - - - ○ - - ○ - ○ ○ - ○ ○ - |
Similar Part No. - BA7657F_08 |
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Similar Description - BA7657F_08 |
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