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MN67603NS Datasheet(PDF) 3 Page - Panasonic Semiconductor |
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MN67603NS Datasheet(HTML) 3 Page - Panasonic Semiconductor |
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3 / 7 page  For Video Equipment MN67603NS This pin switches the chip between external and internal synchronization modes. "H" level input produces external synchronization; "L" level, internal synchronization. Pin Descriptions (continued) Pin No. Symbol Pin Name Function Description 3 EX4fSCI External clock input Color subcarrier frequency (4fSC = 14.31818 MHz) input "H" level input to the EXT/INT pin enables external clock input. If this pin is not used, keep it at "L" level. 11 EX910fSCI External clock input External 910fH (14.31818 MHz) input for horizontal and vertical synchronizing signals "H" level input to the EXT/INT pin enables external clock input. If this pin is not used, keep it at "L" level. 8 EXT/INT External/internal synchronization switch input 9 VR Vertical reset input When this pin detects falling edge input, synchronizing signals are reset to the leading edge of the V-SERATION signal. The pin includes a built-in pull-up resistor. 12 TEST1 Test input Test input Keep this pin at "H" level. The pin includes a built-in pull-up resistor. 10 TEST2 Test input Test input Keep this pin at "H" level. The pin includes a built-in pull-up resistor. 6 SC1 fSC (R-Y) output Color subcarrier frequency signal (3.58 MHz) formed by dividing the crystal oscillator signal (4fSC) by four. 7 SC2 fSC (B-Y) output Color subcarrier frequency signal (3.58 MHz) formed by dividing the crystal oscillator signal (4fSC) by four. This signal lags SC1 by 90 °. 20 SYNC Composite synchronizing Composite synchronizing signal signal output 19 VD Vertical drive output Vertical drive output pin (9H) 18 WHD Wide HD output Wide HD signal Preblanking signal with pulse width of 9.71 µs 17 BLK Composite blanking Composite blanking signal signal output This signal provides a horizontal blanking interval of 10.83 µs and a vertical blanking interval of 21H. 16 HD Horizontal drive Horizontal drive output signal output 15 CP2 Clamp pulse output Clamp pulses for luminance and color difference signals Horizontal deflection start pulses 14 WBLK Composite wide blanking Composite wide blanking signal output This signal provides a horizontal blanking interval of 26.89 µs and a vertical blanking interval of 134.5H. 13 BF Burst flag output Gate signal for color subcarrier frequencies The pulse width is 2.51 µs with the vertical interval (9H) dropped out. |
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