JAJSFP8A July 2018 – October 2018 DS90UH940N-Q1
PRODUCTION DATA.
Configuration of the device may be done either through the MODE_SEL[1:0] input pins or through the configuration register bits. A pullup resistor and a pulldown resistor of suggested values may be used to set the voltage ratio of the MODE_SEL[1:0] inputs (VR4) and VDD33 to select one of the other eight possible selected modes. See Table 7 and Table 8. Possible configurations are shown in Figure 28 and Figure 29.
NO. | VMODE VOLTAGE | VMODE
TARGET VOLTAGE |
SUGGESTED STRAP RESISTORS
(1% Tolerance) |
OUTPUT
MODE |
|
---|---|---|---|---|---|
VTYP | VDD33 = 3.3 V | R1 (kΩ) | R2 (kΩ) | ||
0 | 0 | 0 | Open | 10 | 4 data lanes
1 CSI port active (determined by MODE_SEL1 CSI_SEL bit) |
1 | 0.169 x V(VDD33) | 0.559 | 73.2 | 15 | 4 data lanes
both CSI ports active (overrides MODE_SEL1) |
2 | 0.230 x V(VDD33) | 0.757 | 66.5 | 20 | 2 data lanes
1 CSI port active (determined by MODE_SEL1 CSI_SEL bit) |
3 | 0.295 x V(VDD33) | 0.974 | 59 | 24.9 | 2 data lanes
both CSI port active (overrides MODE_SEL1) |
4 | 0.376 x V(VDD33) | 1.241 | 49.9 | 30.1 | RESERVED |
5 | 0.466 x V(VDD33) | 1.538 | 46.4 | 40.2 | RESERVED |
6 | 0.556 x V(VDD33) | 1.835 | 40.2 | 49.9 | RESERVED |
7 | 0.801 x V(VDD33) | 2.642 | 18.7 | 75 | RESERVED |
NO. | VMODE VOLTAGE | VMODE
TARGET VOLTAGE |
SUGGESTED STRAP RESISTORS
(1% Tolerance) |
CSI_SEL
(CSI PORT) |
HIGH-SPEED BACK CHANNEL | INPUT
MODE |
|
---|---|---|---|---|---|---|---|
VTYP | VDD33 = 3.3 V | R1 (kΩ) | R2 (kΩ) | ||||
0 | 0 | 0 | Open | 10 | CSI0 | 5 Mbps | STP |
1 | 0.169 x V(VDD33) | 0.559 | 73.2 | 15 | CSI0 | 5 Mbps | Coax |
2 | 0.230 x V(VDD33) | 0.757 | 66.5 | 20 | CSI0 | 20 Mbps | STP |
3 | 0.295 x V(VDD33) | 0.974 | 59 | 24.9 | CSI0 | 20 Mbps | Coax |
4 | 0.376 x V(VDD33) | 1.241 | 49.9 | 30.1 | CSI1 | 5 Mbps | STP |
5 | 0.466 x V(VDD33) | 1.538 | 46.4 | 40.2 | CSI1 | 5 Mbps | Coax |
6 | 0.556 x V(VDD33) | 1.835 | 40.2 | 49.9 | CSI1 | 20 Mbps | STP |
7 | 0.801 x V(VDD33) | 2.642 | 18.7 | 75 | CSI1 | 20 Mbps | Coax |