huw finney , Jan 24, 2006; 12:13 p.m.
A slow trickle of parts has been comming my way for the DigitalM
project, much thinking and designing has been done, much to do.
I have put 'mad project' in the title at the request of a forumer and
here is a picture of the IBIS4 14mpix monochrome no microlens sensor,
true silicon porn if ever ther was any...
Silicon Porn!
huw finney , Jan 24, 2006; 12:14 p.m.
Taken with a cheapy digital camera, yes I have the darn thing in my hands!
Brad - 
, Jan 24, 2006; 12:19 p.m.
Which ADC you using (and clock rate). And 1 or 2?
huw finney , Jan 24, 2006; 12:35 p.m.
Brad,
The LTC2884 dual 14 bit, two of them as this chip has four outputs. Using this ADC I can shift the DCs of the sensor and ADC and the range of the ADC to remove the need for extra amplifiers/DC offsetters. Working at 10Msamp/sec as recomended by the sensor datasheet. Other chips are an Altera EP1C6 144TQFP FPGA to do all the clever stuff, a Micron tech MT46V32M16 dram for 'burst' storage, and in the end being put on a MMC Flash card.
An odd veiw of the PCB so far
roger michel 
, Jan 24, 2006; 01:02 p.m.
why does a compay make a 14MPIX monochrome sensor? what is the target audience for such a device?
Benjamin Shapiro , Jan 24, 2006; 01:07 p.m.
I know little of this electronics stuff, but why MMC?
Benjamin Shapiro , Jan 24, 2006; 01:08 p.m.
Also, when i read of this business with the rock in Russia, I thought of you.
Brad - , Jan 24, 2006; 01:12 p.m.
Huw, do you really mean the LTC2284 (a typo)? That's a very nice device, designed mostly
for cellular basestation digital radio use - but should work great in your app - the low power
dissipation being a big bonus.
If you're only clocking at 10 MSPS, consider the LTC2295 - similar device, lower clock speed
and much lower price. 120 mW at 10 MSPS.
huw finney , Jan 24, 2006; 01:26 p.m.
Roger, no idea but I am pleased they do.
Benjamin, MMC has no license issues, unlike SD. The rock, like it!
Brad, the LTC2284 or somesuch I have got the 25Mss one whatever that is, I always like a bit of headroom and at 25 bucks a piece not bad.
The annoying thing is I had to get all the (special) parts from non UK suppliers (3 USA one Belgium) and hence added quite a few bucks in Fedex/DHL charges.
Patrick Jelliffe , Jan 24, 2006; 01:37 p.m.
Looks like you'll beat the unveiling of the Digital M at PMA!!!
Go Huw!
