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M66238FP Datasheet(PDF) 1 Page - Mitsubishi Electric Semiconductor |
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M66238FP Datasheet(HTML) 1 Page - Mitsubishi Electric Semiconductor |
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1 / 11 page  1 MITSUBISHI 〈DIGITAL ASSP〉 M66238FP STANDARD CLOCK GENERATOR WITH PLL FREQUENCY SYNTHESIZER MITSUBISHI 〈DIGITAL ASSP〉 M66238FP STANDARD CLOCK GENERATOR WITH PLL FREQUENCY SYNTHESIZER DESCRIPTION The M66238 is a LSI that incorporates a PLL synthesizer and a sync clock generator in it. The PLL synthesizer covers the range of 25MHz to 50MHz at the minimum steps of 3kHz. The sync circuit outputs a clock and a one-shot pulse which are synchronized with an external trigger signal. Setting a dividing ratio allows acquisition of sync clock outputs within the range of 0.78MHz to 25MHz. FEATURES • Sync clock output frequency range: 1/1, 1/2, 1/4, 1/8, 1/16, 1/32 of 25 to 50MHz • Sync accuracy (jitter): ±3ns • Trigger input: Polarity selectable • One-shot pulse output: Polarity and width selectable • 5V power supply APPLICATION Pixel clock generator BLOCK DIAGRAM PIN CONFIGURATION (TOP VIEW) 3 4 5 7 6 2 17 21 20 24 26 14 13 12 11 10 29 CS SIN SCLK XOUT RESET TR XIN TCKI TCKO CKO/PLLO CKOB PULSE SERIAL WRITE CONTROL CIRCUIT COMMAND REGISTER COMMAND CONTROL CIRCUIT CRYSTAL OSCILLATOR CIRCUIT 12-BIT DIVIDER 15-BIT COUNTER PHASE COMPARATOR CHARGE PUMP SYNC/DIVIDER CIRCUIT (SYNC CLOCK GENERATOR ) 15 12 fin fvco VCO 25MHz ~ 50MHz UP DOWN CPOUT CPIN RV RESET INPUT CHIP SELECT INPUT SERIAL DATA INPUT SERIAL CLOCK INPUT CLOCK OUTPUT CLOCK INPUT TEST PIN PLL OUTPUT CLOCK OUTPUT ONE-SHOT PULSE OUTPUT VCO LOAD OUTPUT FILTER CONNECT PIN FILTER CONNECT PIN TEST PIN TRIGGER INPUT DGND 1 2 RESET → CS → SIN → SCLK → XOUT ← XIN → DGND DVCC TCKI → TCKO ← CKO/PLLO ← CKOB ← PULSE ← VCCO GNDO AGND AVCC AGND → RV AVCC AGND ← CPIN AGND → CPOUT DGND DVCC → UP → DOWN DVCC DGND ← TR 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 DIGITAL GND PIN RESET INPUT CHIP SELECT INPUT SERIAL DATA INPUT SERIAL CLOCK INPUT CLOCK OUTPUT CLOCK INPUT DIGITAL GND PIN DIGITAL POWER SUPPLY PIN TEST PIN PLL OUTPUT CLOCK OUTPUT ONE-SHOT PULSE OUTPUT SYNC OUTPUT POWER SUPPLY PIN SYNC OUTPUT GND PIN ANALOG GND PIN ANALOG POWER SUPPLY PIN ANALOG GND PIN VCO LOAD OUTPUT ANALOG POWER SUPPLY PIN ANALOG GND PIN FILTER CONNECT PIN ANALOG GND PIN FILTER CONNECT PIN DIGITAL GND PIN DIGITAL POWER SUPPLY PIN TEST PIN DIGITAL POWER SUPPLY PIN DIGITAL GND PIN TRIGGER INPUT Outline 32P2W-A |
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