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LC723784 データシート(PDF) 10 Page - Sanyo Semicon Device |
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LC723784 データシート(HTML) 10 Page - Sanyo Semicon Device |
10 / 14 page LC723781N/723782N/723783N/723784/723785 No.8011-10/14 Continued from preceding page. Pin name Pin No. I/O Pin explanation Equivalent circuit FMIN 95 I FM VCO (local oscillator) input. This pin is selected with CW1 in the PLL instruction. The signal input to this pin must be capacitor coupled. Input is disabled in Backup mode, after a power on reset, and in the PLL stopped state. AM VCO (local oscillator) input. This pin is selected and the band set with CW1 (b1, b0) in the PLL instruction. b1 b0 Band 1 0 2 to 40MHz (SW, AM upconversion) 1 1 0.5 to 10MHz (MW, LW) AMIN 94 I The signal input to this pin must be capacitor coupled. Input is disabled in Backup mode, after a power on reset, and in the PLL stopped state. Sub-charge pump output and general-purpose input shared function port. The IOS2 instruction is used for switching between the sub-charge pump output and general-purpose input functions. • When used as the sub-charge pump output : The sub-charge pump output function is set up with the IOS2 instruction. A high-speed locking circuit can be formed by using this pin in conjunction with the main charge pump. The sub-charge pump is controlled using the DZC instruction. b3 b2 Operation 0 0 High impedance 0 1 Only operates when the PLL is unlocked (450kHz) 1 0 Only operates when the PLL is unlocked (900kHz) 1 1 Normal operation SUBPD 92 I/O • When used as a general-purpose input : The general-purpose input function is set up with the IOS2 instruction. Data is read from the port using the INR instruction. This pin goes to the high-impedance state in Backup mode, after a power on reset, and in the PLL stopped state. INEO 91 I Dedicated input port. Data is read from the port using the INR instruction Input is disabled in Backup mode. Continued on next page. |
同様の部品番号 - LC723784 |
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同様の説明 - LC723784 |
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