The PRL-SWBOB is a passive, pass-through, signal breakout board for 4 differential 100 Ω signal pairs on Micro-D9 cabling, the configuration typically used in Spacewire applications:
Each PCB assembly consists of a Micro-D9 receptacle and a Micro-D9 plug, connected via a printed circuit board with matched-length, controlled impedance traces, and probe points available between differential signal pins and between signal pins and ground:
The PCB traces have controlled impedance of 50 Ω, designed for carrying LVDS (or other differential signaling) to/from 100 Ω twisted pairs. Traces on the PCBs are routed with inter-pair lengths matched to within 3 mm. Clock/Data pairs are matched to within 5 mm.
The PRL-SWBOB is passive, and no power is required. There are several configuration options available for the PRL-SWBOB series:
Construct a part number by appending the desired PCB and Pin configurations, e.g. PRL-SWBOB-Z-CS defines a module with a staggered PCB and pins on the Component Side.
Part number suffix “-C00x” indicates a PRL-SWBOB assembly with a customer-specific silkscreen. Part numbers without a suffix are marked with generic Spacewire signal names.
Additional PCB shapes may be available by special order. Contact email@example.com for additional details.
A previous revision, P/Ns 56004785-CS and -SS, equivalent to PRL-SWBOB-Z-CS-C001 and –SS-C001 respectively, were assembled with cadmium-plated parts. They are functionally identical in all respects, but is no longer available. All future shipments will use nickel-plated parts.
Fig. 1, PRL-SWBOB-Z, Spacewire Breakout Board with Staggered PCB, Dimensions.
Fig. 2, PRL-SWBOB, Component-side Silkscreen.
Fig. 3, PRL-SWBOB, Solder-side Silkscreen.
|Input Conn.||Input Pin||Spacewire Signal Name||Output Pin||Output Conn.|
Fig. 4, PRL-SWBOB Pinout
Fig. 5, PRL-SWBOB-Z-CS and -SS, Attached to PRL-4530 Spacewire Panel
(0° C ≤ TA ≤ 35° C)*
|Micro-D Receptacle||MBR-1-009-1B1||Or M83513/13A01NP|
|Probe Pin Spacing||0.1||in.|
|TSKEW2||Inter-pair skew, CLK/DATA||5||mm|
|tr/tf||Rise/Fall Times (10%-90%)||1||ns|
|WS||Width, straight PCB||0.84||in.|
|WZ||Width, staggered PCB||0.99||in.|