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LC72344W Arkusz danych(PDF) 9 Page - Sanyo Semicon Device |
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LC72344W Arkusz danych(HTML) 9 Page - Sanyo Semicon Device |
9 / 13 page No. 6171-9/13 LC72344W, 72345W Continued from preceding page. Pin No. Pin I/O Function I/O circuit VDC3 (3 V) step-up control. 24 VDC1 I CMOS amplifier input 2.1 V power supply. Apply either the voltage stepped-up by the DC-DC converter or an equivalent voltage (2.1 V typical). 27 VDC2 I 3 V power supply. Apply either the voltage stepped-up by VDC1 or an equivalent voltage (3 V typical). 25 VDC3 I VDC2 step-up transistor drive. 28 VREF O Frequency adjustment for the internal RC oscillator circuit. The RC oscillator frequency can be lowered by inserting a capacitor between this pin and ground. 29 VCON I The VDC3 voltage can be adjusted by inserting a resistor between this pin and ground. 30 VADJ O FM VCO (local oscillator) input. This pin is selected with the PLL instruction CW1. The input must be capacitor coupled. Input is disabled in backup mode, in halt mode, after a reset, and in PLL stop mode. 56 FMIN I CMOS amplifier input AM VCO (local oscillator) input. This pin and the bandwidth are selected with the PLL instruction CW1. The input must be capacitor coupled. Input is disabled in backup mode, in halt mode, after a reset, and in PLL stop mode. 57 AMIN I CMOS push-pull output Main charge pump output. When the local oscillator frequency divided by N is higher than the reference frequency a high level is output, when lower, a low level is output, and the pin is set to the high-impedance state when the frequencies match. This output goes to the high-impedance state in backup mode, in halt mode, after a reset, and in PLL stop mode. 59 EO O Transistor used for the low-pass filter amplifier. Connect AGND to ground. 60 61 62 AIN AOUT AGND O Power supply pin. This pin must be connected to ground. This pin must be connected to ground. This pin must be connected to VDD. Supports A/D converter. — 26 58 55 VSS VSS VDD — CW1 b1, b0 Bandwidth 11 0.5 to 10 MHz (MW, LW) Note: *Applications must establish the output data in advance with an OUT, SPB, or RPB instruction and then set the pin to output mode with an IOS instruction when using the I/O switchable ports as output pins. |
Podobny numer części - LC72344W |
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Podobny opis - LC72344W |
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