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The HS side of the cable is terminated with a 4-pin Omnetics connector. The PXIe module side is
terminated with a USB-C connector.
TWISTED-PAIR DATA/POWER CABLE
LENGTH
WEIGHT
DIAMETER
HEADSTAGE CONNECTOR
PXIE CARD CONNECTOR
WIRE STRANDS
NOTE: Avoid repeated sharp bending of the cable (
quality and signal integrity. Use the cable only with the Neuropixels PXIe acquisition module; do not
plug the cable into any other USB-C port as this may damage the cable.
3.4 PXIe Acquisition Module
The PXIe acquisition module (Figure 9) is a custom-made board with a deserializer chip and two FPGAs
for probe configuration, data acquisition and transmission to PC via a PCIe interface. It is compatible
with standard PXIe chassis, which must be purchased from other well-known third-party vendors such
as NI, Keysight or Adlink. Chassis recommendations are provided in Section 2.2 on page 7.
The module has 4 USB-C input ports thus allowing simultaneous connection and operation of up to 4
probes. Various trigger signals
thus probes simultaneously.
11
Custom cable assembly.
12
Xilinx ZYNQ and Xilinx Artix-7
13
A trigger line switch matrix and configurable sync clock are implemented. Various trigger signals can be programmed: SMA
connector, 7 trigger lines on the PXIe bus, user defined data or software trigger. Common trigger for multiple modules and/or
external instruments.
NEUROPIXELS 1.0 USER MANUAL V1.0.5
Table 6: Key cable specifications
11
5 m
5 g (excl. USB-C connector)
0.41 0.82 mm
4-pin (Omnetics)
USB-C
1 twisted pair
≤
13
can be configured to synchronize and use multiple PXIe modules and
2 cm bending radius) as this may degrade cable
12
16
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