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AK2401 Folha de dados(PDF) 10 Page - Asahi Kasei Microsystems |
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AK2401 Folha de dados(HTML) 10 Page - Asahi Kasei Microsystems |
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10 / 103 page  [AK2401] 017003093-E-00 2017/3 10 6.3. Handling of Unused Pins Unused I/O pins must be connected appropriately. In the case of that PLL SYNTHESIZER is not used No. Pin Name Type Handling Note 5 BIAS2 AI Open 11 SYNVSS G Connect to VSS 12 SYNVDD P Supply Voltage 13 CPVDD P Supply Voltage 14 CP AO Open 15 SWIN AI Including the case of not using fast lock function Refer to “13.7.5 Lock Detection” 16 CPZ AI Open Including the case of not using fast lock function 47 LD DO Open Including the case of not using lock detection function * The power must be supplied to the SYNVDD/CPVDD pin even when not using the PLL SYNTHESIZER. * In the case of not using PLL SYNTHESIZER, RDOC can not be used. Use of an external PLL is not recommended. In the case of that DAC is not used No. Pin Name Type Handling Note 1 DA_SCLK DI Connect to VSS 3 DA_SDI DI Connect to VSS 6 SMFOUT AO Open 7 DACVDD P Supply Voltage 52 DA_FS DI Connect to VSS * The power must be supplied to the DACVDD pin even when not using the DAC. In the case of that DRIVER AMP is not used No. Pin Name Type Handling Note 19 RFOUT_P AO Open In the case of single-ended output, connect unused pin to VDD. 20 RFOUT_N AO Open 21 LOVDD P Supply Voltage * The power must be supplied to the LOVDD pin even when not using the DRIVER AMP. In the case of that the corresponding function is not used No. Pin Name Type Handling Note 33 AOUT_P AO Open 34 AOUT_N AO Open 42 AGC_KEEP DI “L” fixed |
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