ZHCSME1C August 2018 – June 2021 DS250DF230
PRODUCTION DATA
The DS250DF230 supports a wide range of input data rates, including divide-by-2 and divide-by-4 sub-rates. The supported data rates are listed in Table 8-5.
| DATA RATE RANGE | DIVIDER | CDR MODE | COMMENT | |
|---|---|---|---|---|
| MIN | MAX | |||
| ≥ 19.6 Gbps | ≤ 25.8 Gbps | 1 | Enabled | |
| > 12.9 Gbps | <19.6 Gbps | N/A | Bypassed | Output jitter will be higher with CDR bypassed. |
| ≥ 9.8 Gbps | ≤ 12.9 Gbps | 2 | Enabled | |
| > 6.45 Gbps | < 9.8 Gbps | N/A | Bypassed | Output jitter will be higher with CDR bypassed. |
| ≥ 4.9 Gbps | 6.45 ≤ Gbps | 4 | Enabled | |
| < 4.9 Gbps | N/A | Bypassed | Output jitter will be higher with CDR bypassed. | |
The device can be configured to operate at different standard data rates by programming the Rate/Sub-Rate register Reg_2F[7:4], For more information on data rate programming, refer to the DS2x0DF810, DS250DFx10, DS250DF230 Programmer's Guide.
| RATE Reg_0x2F[7:4] | Standard | Input Data Rates [Gbps] | Recovered Clock Frequency [MHz] |
|---|---|---|---|
| 0 | CPRI Option 9 | 12.16512 | 30.72 |
| 1 | CPRI Option 7 | 9.83040 | 30.72 |
| 2 | CPRI Option 8 | 10.13760 | 30.72 |
| 3 | CPRI Option 10 | 24.33024 | 30.72 |
| 4 | CPRI Option 5 | 4.91520 | 30.72 |
| 5 (Default) | 100GbE | 25.78125 | 32.2265625 |
| 6 | 100GbE/ 40GbE/ 10GbE | 25.78125 | 32.2265625 |
| 10.31250 | 32.2265625 | ||
| 7 | 40GbE/ 10GbE | 10.31250 | 32.2265625 |
| 8 | CPRI Option 6 | 6.14400 | 30.72 |