CDC2351M

Jamaal_Charles

Other Parts Discussed in Thread: CDC351, CDC2351

Hello,

I am modeling the CDC2351MDREP output driver. Do you have an IBIS model? Since there wasn’t one listed on the parts website, I looked for a similar device to use instead. Would you please confirm the similarity (or lack thereof) between the CDC351 and the CDC2351MDREP? The CDC351 IBIS model lists the following parameters:

Device	C_COMP	R_PIN	L_PIN	C_PIN	Z_OUT
CDC351	6.0E-12	4.3E-02	1.3E-09	7.8E-14	14.5
CDC351	6.0E-12	3.8E-02	1.1E-09	6.8E-14	13.4
CDC351	6.0E-12	4.8E-02	1.5E-09	9.5E-14	15.7

Can someone shed some insight into the disparity?

Thanks!

over 11 years ago

Wade Vonbergen over 11 years ago

TI__Guru 62930 points

Jamaal,

There is not an IBIS model for the CDC2351. However, I was able to locate information on similar IBIS model

The CDC351 is similar to the CDC2351but does not have the internal 22Ohm damping resistors.

So using a CDC351 IBIS model and an 22Ohm damping resistor added to output of the CDC351 it will be similar to a CDC2351.

Regards,

Wade

Jamaal_Charles over 11 years ago in reply to Wade Vonbergen

Genius 3245 points

Thanks Wade!

Sorry to ask this, but can you tell me how much variation is there in the 22 Ohm resisitor? Is the output impedance as seen through each buffered output 22 Ohms or 26 Ohms or 36 Ohms?

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CDC2351M