Regarding AFE and Vertical drivers

Question

Hi, 
 Greetings!!!. I am Sandeep Vankineni Working for System Controls, Bangalore. We developing a camera interface with analog devices front ends.I am interfacing AD9992 with KAI-0330 (KODAK) image sensor. I had doubts regarding some of the interfaces kindly reply back to me. 1) If we use AD9992 the driver strength of horizontal drivers is increased through 0x35 in steps of 4.3ma. I want to know how this effects the amplitude of the pulse. given H- driver supports Vdd-0.5 min. I need a H1L=-9V and H1H=3V amplitude level. so how to achieve the voltage level? Similarly, V-clocks take -9V, 0V, 9V how to achieve these voltages? 
 2) V-drivers in AD9923A provides VLL=-7.5 how can i carry with VLL=-9V as per my sensor? 
 3) I need how the voltage levels will be varied in AD992. 
 4) if you have any reference schematics help me out.

EBarnes · Accepted Answer

The Kodak sensors require a larger horizontal clock voltage swing than these AFE products can support. You will need external HCLK drivers. For the vertical clocking, a product like the AD9920A can support the necessary voltage levels (-9V, 0V, +9V). But, the vertical driver outputs are designed for a typical load of 3nF, so if the sensor loading is higher than this, the rise/fall times will be slower and you might need external devices to speed things up. 
 The AD9920A is a good choice if you plan to use the CCD's single output configuration. If you need two channels, the AD9928 is a dual channel version of the AD9920A that would work.)

Partner Forums

Partner Libraries

Products Mentioned

Regarding AFE and Vertical drivers