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AFE0064控制问题

Other Parts Discussed in Thread: AFE0064, ADS8363

目前是用一块板有2个的AFE0064芯片测试X射线的,分高能与低能。十几块板与1个ADS8363连接;由fpga统一控制。请问VT-A(56脚),VT-B(57脚)2个补偿电压是短接吧,他的电压是与DF_SM的输入正电压(比如+2.5V),负电压(-2.5V)有关吧。如果一块板我进入了,NAP(打盹)模式,是不是输入与输出都不起作用了,就是ENTRI不用进入3态状态了?可以悬空了吗?唤醒退出NAP(打盹)模式需要多少时间?

  • 56 VT-A I
    External voltage to control the amount of charge dump for TFT charge injection compensation. Charge dump = (V-voltage at 'EXT_C')*0.857 pC where V is external voltage at pins 56, 57. Short pins 56 and 57 externally and apply external voltage for charge injection compensation.

    这是 TFT charge 功能的引脚.
    NAP (打盹) 模式: 49.5mW, Power up time from NAP:10uS