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M64893AFP датащи(PDF) 2 Page - Mitsubishi Electric Semiconductor |
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M64893AFP датащи(HTML) 2 Page - Mitsubishi Electric Semiconductor |
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2 / 12 page ![]() M64893AFP/AGP SERIAL INPUT PLL FREQUENCY SYNTHESIZER FOR TV/VCR MITSUBISHI BIPOLAR DIGITAL ICs MITSUBISHI -12 Pin description Symbol f in GND Vcc1 Vcc2 BS4 BS3 BS2 BS1 Vin Vtu Vcc3 LD/ f test CLOCK DATA ENABLE X in Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin name Prescaler input GND Power supply voltage 1 Power supply voltage 2 Band switching outputs Filter input (Charge pump output) Tuning output Power supply voltage 3 Lock detect/ Test port Clock input Data input Enable input This is connected to the crystal oscillator. Function Input for the VCO frequency. Ground to 0V. Power supply voltage terminal. 5.0 ±0.5V Power supply for band switching,Vcc1 to 13.2V PNP open collector method is used. When the band switching data is "H",the output is ON. When it is "L",the output is OFF. This is the output terminal for the LPF input and charge pump output. When the phase of the programmable divider output ( f 1/N) is ahead compared to the reference frequency (fref), the "source" current state becomes active. If it is behind, the "sink" current becomes active. If the phases are the same, the high impedance state becomes active. This supplies the tuning voltage. Power supply voltage for tuning voltage 28 to 35V When 19 bit data is input,lock detector is output. When 27 bit data is input, lock detector is output, the programmable freq. Divider output and reference freq. Output is selected by the test mode. Data is read into the shift register when the clock signal falls. Input for band SW and programmable freq. divider set up. This is normally at a "L". When this is at "H", data and clock signals are received. Data is read into the latch when the 19th pulse of the clock signal falls. 4.0MHz crystal oscillator is connected. 2 |
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