GUI Reference
R&S
®
ZNA
637
User Manual 1178.6462.02 ─ 12
This dialog is available with
option R&S
ZNA-K20
only.
Similar to the usage of emphasis the equalization targets to improve the signal quality
at the receiver end of the transmission system. The building block "Equalize" simulates
a continuous-time linear equalizer (CTLE) which is typically realized as an analog cir-
cuit in receivers.
Standards like USB 3.0 or PCIe specify the equalizer’s frequency response using a
gain factor plus poles and zeros in the frequency domain.
Active
Enables/disables equalization.
Remote command:
CALCulate<Chn>:EYE:EQUalization:STATe
CTLE Equalizer
Specifies the parameters of the equalizer – a two-pole filter with single zero. With
angular frequencies ω = 2πf, the transfer function is given by:
H(s) =
"DC Gain" ω
Pole 1
ω
Pole 2
ω
Zero
s + ω
Zero
(s + ω
Pole 1
)(s + ω
Pole 2
)
The default values are taken from the USB 3.0 standard for the ‘Long Channel’ model.
Remote command:
CALCulate<Chn>:EYE:EQUalization:CTLE:DC
CALCulate<Chn>:EYE:EQUalization:CTLE:ZERO
CALCulate<Chn>:EYE:EQUalization:CTLE:POLE<1|2>
Applic Softtool