SLUSDQ4 April 2019 BQ79606A-Q1
The plots below show the positive effect of re-clocking. The figure on the left captures the communication line of the first device in the stack of 16 (channel 1). The figure on the right shows the communication line of the last device in the stack (in this case device 16) channel 3. Both plots shows 250ns pulse duration. Bit compression is not present and the difference between bit-widths is 0, even with higher device counts. Without re-clocking, the pulse width of the last device in the stack will experience bit compression and eventually communication loss. With re-clocking this issue is solved and the number of device in the stack can increase as high as 64 devices without experiencing any communication loss. The other benefit of this feature is the ability to support longer cable length.