問題如標題, ADS1293 是否可以通過 AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51 Standards.
ADS1698 data sheet 上有註明可以通過, 但 ADS1693 data sheet 上沒有註明
另外ADS1693 一定要外掛一顆4.096 MHz crystal 嗎? 如果換成 4.096 MHz oscillator 可以嗎? 要如何接? 市面上crystal 體積都太大了!
謝謝!
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Hi Kailyn,
謝謝你的回覆
ADS1293 SPEC 上有描述: 如果使用内部集成晶振還是要加上一顆4.096MHz crystal (我這樣理解對嗎? 還是不需要外加?)
"This clock can be generated by an on-chip crystal oscillator or provided externally on the bi-directional CLK.
The high-accuracy low-power on-chip crystal oscillator will work with an external 4.096 MHz crystal connected between the XTAL1 and XTAL2 pins, each of which must be loaded with a 20-pF capacitor to get an accurate oscillation frequency."
如果用外部引腳 CLK, 他的 clock 需要409.6 KHz , 這種oscillator 好像也找不到.
目前在評估版上所使用的是一顆 AT49 大包裝crystal, 攜帶式裝置很難使用此包裝
所以我的想法是改用外部 oscillator (主動產出頻率 4.096MHz) 然後經過 Xtal1, Xtal2 輸入, 因為oscillator 只有一個output , 所以我應該兩根腳都接, 還是只要接任一個腳即可, 謝謝!