Continuous Time Linear Equalization

Communication channels typically attenuate the high-frequency components of the signal more than the low-frequency components. High-frequency roll-off degrades rise and fall times. Continuous-Time Linear Equalization (CTLE) compensates for this loss by inserting a high-pass filter at the receiver.

Nexxim offers four ways to specify the CTLE transfer function:

1. By specifying one or two poles and, optionally, one zero and the DC gain of the high-pass filter.
2. By specifying the tabulated values of the frequency-dependent transfer function directly with a data file.
3. By specifying any number of poles and zeros, the range of DC gain values, and the high-frequency gain, representing a generic rational function.
4. By specifying the coefficients of the numerator and denominator of a polynomial representing a generic rational function.