ZHCSFB4A July 2016 – January 2024 DS90UB964-Q1
PRODUCTION DATA
For best AEQ performance and error free operation, the end-to-end transmission channel (including cables, connectors, and PCBs) needs to meet insertion loss, return loss (impedance control), and crosstalk requirements given in Table 5-5 and Table 5-6. Poor impedance control or insertion loss of the transmission channel and poor channel to channel isolation (low IL / FEXT) can result in significant reductions in the maximum transmission distance.
| PARAMETER | MIN | TYP | MAX | UNIT | ||
|---|---|---|---|---|---|---|
| Ztrace | Single-ended PCB trace characteristic impedance | 45 | 50 | 55 | Ω | |
| Zcable | Coaxial cable characteristic impedance | 45 | 50 | 55 | Ω | |
| Zcon | Connector (mounted) characteristic impedance | 40 | 50 | 62.5 | Ω | |
| RL | Return Loss, S11 | ? fBC < f < 0.1GHz | –16 | dB | ||
| 0.1GHz < f < 1GHz (f in GHz) | –9 + 7 × log(f) | dB | ||||
| 1GHz < f < fFC | –9 | dB | ||||
| IL | Insertion Loss, S12 | f = 1MHz | –1.4 | dB | ||
| f = 5MHz | –2.3 | dB | ||||
| f = 10MHz | –2.5 | dB | ||||
| f = 50MHz | –3.5 | dB | ||||
| f = 100MHz | –4.5 | dB | ||||
| f = 0.5GHz | –9.5 | dB | ||||
| f = 1GHz | –14.0 | dB | ||||
| FEXT | Maximum Far End Crosstalk | f < 1.0GHz | –30 | dB | ||
| NEXT | Maximum Near End Crosstalk | f < 100MHz | –30 | dB | ||
| PARAMETER | MIN | TYP | MAX | UNIT | ||
|---|---|---|---|---|---|---|
| Ztrace | Differential PCB trace characteristic impedance | 90 | 100 | 110 | Ω | |
| Zcable | STP / STQ cable characteristic impedance | 85 | 100 | 115 | Ω | |
| Zcon | Differential connector (mounted) characteristic impedance | 80 | 100 | 125 | Ω | |
| RL | Return Loss, SDD11 | ? fBC < f < 0.01GHz | –20 | dB | ||
| 0.01GHz < f < 0.5GHz (f in GHz) | –20 + 20(f) | dB | ||||
| 0.5GHz < f < fFC | –10 | dB | ||||
| IL | Insertion Loss, SDD12 | f = 1MHz | –1.35 | dB | ||
| f = 5MHz | –1.8 | dB | ||||
| f = 10MHz | –2.1 | dB | ||||
| f = 50MHz | –3.8 | dB | ||||
| f = 100MHz | –4.9 | dB | ||||
| f = 0.5GHz | –11.3 | dB | ||||
| f = 1GHz | –17.3 | dB | ||||
| IL/FEXT | Insertion Loss to Far End Crosstalk Ratio | f < 1.0GHz | -20 | dB | ||
| NEXT | Maximum Near End Crosstalk | f < 200MHz | -30 | dB | ||