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  • BitFlow ALT-PCE-AN4 Analog Frame Grabber Image

BitFlow ALT-PCE-AN4 Analog Frame Grabber

Quick Overview

x4 PCI Express "short" card for up to 4 analog cameras. Supports VGA, SVGA, XGA, SXGA, UXGA resolutions and more. Replaced the product(s) :FlashBus MX-332

The Alta-AN is an affordable, versatile analog product family for Semiconductor and Industrial Vision OEMs. This family can acquire from almost any analog cameras on the market, from high speed asynchronous-reset monochrome cameras to super high resolution color HDTV cameras. The Alta frame grabbers are high-quality, flexible, PCI Express bus imaging products, well supported by an easy-to-use SDK, and drivers for most popular software imaging packages.

There are three main models in the Alta family: Alta-AN1, Alta-AN2 and Alta-AN4. The Alta-AN1 has one Virtual Frame Grabber (VFG) and can support one analog camera of any type. The Alta-AN2 has two VFGs and support two cameras, and the Alta-AN4 has four VFGs and support four cameras. Each VFG is a completely independent frame grabber. This means that each VFG can be configured for a different camera, different triggering mode, different destination buffer and can be in a different acquisition state than the other VFGs. But most importantly, all of the VFGs on one board can acquire simultaneously, at the cameras full frame rate and resolution. Each Alta model is a half size x4 PCI Express board (supporting total data rate up to 1.0 GB/S).


  • x4 PCI Express "Short" card
  • Three A-to-Ds per VFG (maximum clock rate: 140 MHz)
  • Programmable gain/offset for each A-to-D
  • Supports single tap and dual tap monochrome cameras
  • Supports color RGB cameras (output: 24 bits/pixel)
  • Supports component YPbPr cameras (output: YUV 4:4:4)
  • Supports asynchronous reset cameras
  • Supports partial scan cameras (high frame rates)
  • Multiplex between two one-tap or two two-tap cameras
  • Programmable Region of Interest (ROI) via sub-windowing acquisition
  • External hardware or internal software trigger
  • Acquire at any frame rate (limited only by the bandwidth of the PC)
  • Supports cameras resolutions up to 16K x 16K
  • Supports interlaced and progressive scan cameras
  • HD/VD/Composite sync signals in and out
  • Supports WEN input signal
  • Strobe output (programmable timing)
  • Provides power to camera (12 V @ 0.5 A)
  • Flowthru technology, no on-board frame buffers, zero latency data access
  • Efficient interrupt driven architecture, no software polling required
  • RoHS compliant
Number of simultaneous monochrome cameras 4
Number of simultaneous two-tap cameras 4
Number of simultaneous RGB cameras 4
Number of trigger inputs 4
Total number of camera MUXed 8
Bits per channel 8 Bits
Maximum channels per VFG 3
Maximum frames per second No Limit
Maximum A/D conversion frequency 100 MHz
Analog input voltage range 0.35 to 1.4 Volts P-to-P
Gain adjustment range +/-6 dB
Gain adjustment resolution 8 Bits
Gain matching between channels +/-1 percent of full scale
Offset adjustment range +/-127 LSB
Maximum frame size 16K x 16K
Power for camera 12 Volts @ 0.5 Amps
Interface Four lane (x4) PCI Express
Differential non-linearity typical +/-0.5 LSB
Differential non-linearity maximum +1.0/-0.9 LSB
Integral non-linearity typical +/-1.1 LSB
Integral non-linearity maximum +/-2.75 LSB
PLL jitter typical 250 picoseconds P-to-P
PLL jitter maximum 450 picoseconds P-to-P
HSYNC Frequency Range 10 to 150 kHz 
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