Hi all,
the first draft revision of the schematics and PCB design can be found
at http://cgit.osmocom.org/cgit/osmo-e1-xcvr/
(or "git clone git://git.osmocom.org/osmo-e1-xcvr.git")
The design has the following features:
* the 4x3 and 2x3 jumpers like on the HFC-E1 eval board to set TE mode
and NT mode as well as two possible configurations of the pairs
* jumper to select between 1.544 MHz and 2.048 MHz oscillator clock
i.e. E1/T1
* jumper to decide whether TCLK should be sourced from MCLK or if it is
provided externally by the transmitter
* 10pin header for SPI control interface
* 10pin header for TDM interface
* 5x5cm size for cheapest pcb prototyping ;)
Comments or feedback is welcome. I decided to use this project to try
current EAGLE (I last used it when there was a DOS version, IIRC). So
I'm sorry it's not KiCAD / gEDA, but I needed a pet project to evaluate
it...
Regards,
Harald
--
- Harald Welte <[email protected]> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
