Model 577 Operating Manual 32
11 Option TZ50 (TTL Impedance Matching)
This module option allows a user to have a 50 Ω load on the output while maintaining output amplitude of at least
4 Volts while in the TTL/CMOS Mode. All other functionality of the module is the same as the AT20 modules,
including output while using the Adjustable Mode function of the channels.
*Note: The TZ50 module has significant overshoot and ringing through high impedance (see figure below).