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Advanced Printing with Lightroom (Video Tutorial)

Building upon last week's Basic Printing with Lightroom video tutorial, this advanced printing tutorial will teach you to print contact sheets, print multiple images at a time, use Lightroom's present...

M2aD Project, Silicon Porn!

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!


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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.


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!

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