(Please visit the site to view this file) Hi Hiroshi-san, How are you? Please allow us answer a couple questions also we will continue to answer other more questions. Thank you! Just let you know. 1) OUTA (Channel A) and OUTB (Channel B) are two individual output pins. TX517 can run (output) only one output channel without the other channel. So TX517 has two output channels and their circuits are separated. Therefore, using the transformer between OUTA and OUTB, that just is an optional choice. 2) When running one channel, each channel can output up to 5 levels. 3) When we try to use the subtraction method from one channel output to the other channel output (such as OUTA-OUTB), we could obtain Higher output voltage and also we can create up to 17 levels. (Please take a look at the attached TX517 User's Guide.) 4) Using a transformer to perform OUTA-OUTB is one way to show the voltage difference between Channel A output and Channel B output. We can also just use two scope probes on the oscilloscope to measure the voltage difference (such as OUTA-OUTB) as well. 5) In the datasheet, "Single Ended: 5 Levels" means when only using either OUTA output or OUTB output separately. "Differential: 17 Levels" means when connecting both OUTA output and OUTB output at the same time. Output Voltage can be up to 200Vpp (in Differential Mode). 6) the User's Guide shows the case is: when OUTA has 5-level voltage output and OUTB has 5-level voltage output. It shows what is the Input Pattern settings: a) for 5 level (Input pattern settings): Note: this setting is not the same as the customer's [Q2]. b) 5 level (Output Waveform for OUTA=Single-ended and OUTB=single-ended and Differential=OUTA-OUTB): Thank you very much! Have a nice weekend! Best regards, Chen
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