User`s manual

Camera Interface
Basler A500
k 2-9
PRELIMINARY
2.3 Camera Link Implementation in the A500k
The A500k uses a National Semiconductor DS90CR287 as a Channel Link transmitter. For a
Channel Link receiver, we recommend that you use the National Semiconductor DS90CR288, the
National Semiconductor DS90CR288A or an equivalent. Detailed data sheets for these
components are available at the National Semiconductor website (www.national.com). The data
sheets contain all of the information that you need to implement Camera Link, including
application notes.
The A500
k uses a National Semiconductor DS90LV048A differential line receiver to receive the
RS-644 camera control input signals and the serial communication input signal defined in the
Camera Link specification. A DS90LV047A differential line transmitter is used to transmit the serial
communication output signal defined in the specification. Detailed spec sheets for these devices
are available at the National Semiconductor website (www.national.com).
The A504
k and the A503k use the full configuration of Camera Link with three Channel Link
transmitters. The schematic in Figure 2-5 shows the interface for the A504
k. The schematic in
Figure 2-6 shows the interface for the A503
k.
The A501k uses one Channel Link transmitter. The schematic in Figure 2-7 shows the interface for
the A501
k and a typical implementation for the frame grabber interface.

Note that the timing used for sampling the data at the Channel Link receiver in the
frame grabber varies from device to device. On some receivers, TTL data must be
sampled on the rising edge of the receive clock, and on others, it must be sampled
on the falling edge. Also, some devices are available which allow you to select either
rising edge or falling edge sampling. For specific timing information, see the data
sheet for the receiver that you are using.