Flat Cable Connectors

Hi,

I am in the process of designing a Blackfin DSP board and a
PAL/NTSC decoder board. I want to connect these two over a 20pin
connector. I've two? options.
1) To mount the decoder directly on the DSP board
2) To use a Flat Ribbon Connector(~15cm length) between them.

The decoder runs at 27MHz with current ratings of 2mA for I/O and 4mA
for clocks
The DSP board controls the decoder with I2C(current rating ~10uA?).
Maximum Load: 200pF

My question is that If I resort to a Flat Cable then will the DSP be
able to drive I2C and also what about other effects like Cross-talk,
distortion etc and do I need to use Termination Resitors for I/O's
also. Thank You.

kishore2k4@gmail.com wrote:

Hi,

I am in the process of designing a Blackfin DSP board and a
PAL/NTSC decoder board. I want to connect these two over a 20pin
connector. I've two? options.
1) To mount the decoder directly on the DSP board
2) To use a Flat Ribbon Connector(~15cm length) between them.

The decoder runs at 27MHz with current ratings of 2mA for I/O and 4mA
for clocks
The DSP board controls the decoder with I2C(current rating ~10uA?).
Maximum Load: 200pF

My question is that If I resort to a Flat Cable then will the DSP be
able to drive I2C and also what about other effects like Cross-talk,
distortion etc and do I need to use Termination Resitors for I/O's
also. Thank You.

My guess is the following: if you are worried about crosstalk, then

run GND SIG+ SIG- GND sequences where the SIG lines repersent
differential driver/receiver of your choice and terminated according to
the driver/receiver requirements.