Science DIO - Digital Input Output Sinara / ARTIQ


DIO_RJ45 is an extension module supplying 16 LVDS pairs via 4 front-panel RJ45 connectors.

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KK 165_DIO_RJ45
KK 168_DIO_RJ45
KK 164_DIO_RJ45
KK 163_DIO_RJ45

This board connects to up to two EEM headers, but single-header operation is also possible, with limited number of 8 IOs.

Each RJ45 supplies 4 LVDS DIOs. The direction (input/output) is individually selectable for each signal via I2C or using on-board switches. Outputs are intended to drive 100 Ohm loads (LVDS is short-circuit protected), inputs are 100 Ohm terminated. The connectors dedicate all 8 pins to LVDS signals, ground is on the connector shield so only Ethernet cat 6 shielded cables are allowed. Maximum verified operating frequency is 150 MHz due to lab TTL generator limitation. IO buffers used in the design permit operation with much higher frequency.

Technical Parameters

Function Comment Pin(s) Pin designation if used for SPI
GND shield
LDVS_1 LVDS, bi-directional 1 (P), 2 (N) SCLK, clock-capable
LDVS_2 LVDS, bi-directional 4 (P), 5 (N) MOSI
LDVS_3 LVDS, bi-directional 3 (P), 6 (N) MISO
LDVS_4 LVDS, bi-directional 7 (P), 8 (N) CS


This module can be used for building control and measurement systems for optical and quantum physics experiments and quantum technologies development. In particular, the Sinara ecosystem is tailored to the needs of working with trapped ions and cold atoms. Compatible with ARTIQ software.


More technical information:


We offer electronics engineering consultancy services related to Sinara hardware, including: custom modifications of hardware, custom firmware and gateware modifications, system design, integration and testing.

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