| Schematic | PCB | Assembly |
The KAF-0401E Sensor Head works with the KAF-0401E Head (A2061) to provide clock signals for a KAF-0401E image sensor. The image sensor mounts on the A2063 and the A2063 plugs into the A2061 through an eight-way 1-mm flex cable. The A2061 in turn connects to a LWDAQ system as a LWDAQ device. For a description of the Long-Wire Data Acquisition System, see the LWDAQ Manual.
The A2063 provides zener diode protection for all clock phases on the KAF-0401E. Our experience with this chip and its predecessor, the KAF-0400, is that the clock inputs are vulnerable to static discharge. Each sensor costs around $300, and we destroyed half a dozen KAF-0400s our of two dozen that we worked with during the 1990s. Our KAF-0400 Sensor Head provided inadequate and mis-managed zener protection. In the A2061, all clock inputs are clamped to within 12.7 V of 0V (Z1 to Z5 in the schematic), and the supply voltage itself is clamped to 16V (Z7). All other DC voltages required by the sensor we provide with resistive dividers decoupled with capacitors next to the chip.
The clock voltages themselves, assuming they do not exceed the clamping voltages on the A2061, are supplied via the 8-way flex connector, J1. This connector accepts a 1-mm pitch 8-way flex cable.
Note: All our schematics and Gerber files are distributed under the GNU General Public License.
None available yet.
