Section 6.3 (sheet 11) covers the Recommended Operating Conditions for the device.
In particular, the 1394b Differential Output Voltage is noted to be 700mV, typical,
The 1394b Common-Mode Output Voltage is noted to be 1.5V, typical.
Also, the 1934b Differential Input Voltage is noted to be 200mV (min) to 800mV (max).
Later, in Sections 6.4 (sheet 12) and 6.5 covers the Electrical Characteristics, Driver and Electrical Characteristics, Receiver
In 6.4, the Differential Output Voltage is noted to be 172mV (min) to 265mV (max) under the specified test conditions.
In 6.5, the Receiver Input Threshold Voltage, is +/- 30mV.
1. For Tx operation, what does the 700mV Vod level in section 6.3 represent relative to the Vod level noted in Section 6.4? Are there any Eye diagram plots of the output of the device that may be of reference?
2. Looking at the levels into the receiver, what does the level for Input Threshold in section 6.5 represent relative to the Vid levels noted in Section 6.3? As the device can have thresholds as low as +/- 30mV, is the recommended value of 200mV (min) such to only ensure operational margin?
