Other Parts Discussed in Thread: DS125DF410
Hi,
1. Does DS110DF410 support 11.34375Gbps? The datasheet describe the data rate range is from 8.5 to 11.3 Gbps.
2. If DS110DF410 could support 11.34375Gbps, how to set the 0x2F register as the application need VCO and data rate both 11.34375Gbps?
From datasheet, the register configuration procedure is as follow:
1. Select the desired channel of the DS110DF410 by writing the appropriate value to register 0xff.
2. Set bits 5:4 of register 0x36 to a value of 2'b11 as described above to enable the 25 MHz reference clock.
3. Write registers 0x2f, and 0x36 with the correct values.
4. Compute the expected PPM count values for Group 0 and Group 1 as described above.
5. Write the expected PPM count values into registers 0x60-0x63 as described above, setting bit 7 of both registers 0x61 and 0x63.
6. Set the value 0xff into register 0x64 for an approximate PPM count tolerance of 1100-1400 PPM.
7. Reset the retimer CDR by setting and then clearing bits 3:2 of register 0x0a.
3. If DS110DF410 don't support 11.34375Gbps, can DS125DF410 replace it directly without any hardware change? For register configuration, does there any special procedure need to be taken into consideration?
Thanks & Best Regards,
Tess