Mini-WR
Introduction
By push the fibre-optic SFP connector to its carrier board, Mini-WR makes itself the SMALLEST White Rabbit Node implementation and gives flexibility for connector/panel arrangement on the carrier board.
As a plug&play module, Mini-WR requires no or little WR knowledge to operate and ease the integration of White Rabbit functionality on custom system.
Hardware
Mini-WR*
3D view of Mini-WR Release V1.0*
(Mini-WR on left, Mini-WR-G on
right)
Block Diagram
Block diagram of Mini-WR*
Features:
- Spartan 6 (XC6SLX45T-4CSG324C)
- 32MBit SPI FLASH (W25Q32JVZPIQ)
- 64Kbit I2C EEPROM (24AA64T-I/MC)
- 1-Wire temperature sensor (DS18B20)
- WR tunable clock generate circuit
- main PLL (DAC + TCVCXO + PLL)
-
DMTD offset clock (DAC + VCXO)Simplified DMTD circuit to reduce external components **
- SMALL dimension :53.5mm * 25mm (Mini-WR-G) / 46mm * 25mm (Mini-WR)
- metal shield cover on top (not shown on picture)
- 3.3v power supply, 1.3A
- *flexible connect-options*
-
FCI high-speed connector : 0.5mm pitch, 60 pos. on bottom side. Amphenol FCI Mezzostak connector.
-
Gold-finger edge connector : 1mm pitch, 40 pos. right edge, Mate with SAMTEC MEC1 connector
-
Castellated edge contacts : 2mm pitch, 22 Pos. on top/left/bottom edge respectively.
-
Project information
Releases
- Firmware
- Hardware
Contacts
Commercial producers
SyncTechnology - a spinoff company from THU
General question about project
- Guanghua Gong - Tsinghua University, Beijing
Current status
Date | Event |
21-Nov-2017 | First discussion |
21-Dec-2017 | Evaluation prototype layout done |
16-Feb-2018 | Evaluation prototype assembled |
12-Mar-2018 | Evaluation prototype tested |
19-Mar-2018 | Project started on ohwr |
19 March 2018