45
45
Development Kit
45
7.10
REF IN
The REF IN SMA connector can be used to feed the module with an external 10-MHz
sinusoidial frequency reference.
Input impedance:
50
.
Input level:
between -10dBm and +14dBm (0.2Vp-p to 3.2Vp-p).
7.11
Buttons
Pressing the nRST button drives the nRST pin of the mosaic low, which resets the module.
Pressing the LOGGING button drives the LOGBUTTON pin of the mosaic low. This can be
used to enabled and disable logging, as described in section 4.6.
The buttons are also connected to J601 and J602 2-pin headers (see above picture).
Connecting the nRST or LOGGING pins of these headers to ground is the same as pressing
the respective button.
7.12
SD Card Socket
The module can log files on the micro SD Card in this socket. See section 4.6 for a
description of the SD Card logging on the mosaic module.
nRST
LOGGING
GND
