Quantum Composers 9250 Series - Manual (Page 47)

9250 Manual Version 1.2 | Quantum Composers
47
11. Appendix C – TZ50 (Impedance Match Option)
TZ50 Overview
This
“TZ50” option allows a user to terminate into a 50 Ohm load while maintaining output amplitudes
of at least 4 Volts. All other functionality of the module is the same as the 9250. The output may be
adjusted accordingly as before; although, due to the alternate internal circuitry, one should expect to
see lower amplitudes when terminated into a 50 Ohm load. This concept is due to the voltage divider
theory in which:
[ ]
When terminated into high impedance loads (≥ 1K ohm), one should expect to see the set
amplitude, accompanied with substantial overshoot and ringing. See Figures D.1 and D.2 for
visual representations of these scenarios.
This option cannot be mixed with a standard output. If ordered, the TZ50 will be applied to every
channel
.
For more information on upgrading and/or purchasing the TZ50 option, please contact sales:
[email protected]
www.QuantumComposers.com
1.800.510.6530
TZ50 Specifications
TZ50 Specifications MIN TYP MAX UNIT
Output Module
Output Impedance - 8 - Ohms
Output Level
3.3
– 5.0 VDC into ≥ 1K ohm
2.8 – 4.4 VDC into 50 ohm
Output Current
5mA typical into 1K ohm
86mA typical into 50 ohm
Rise Time (10% - 90%)
< 1ns typical @ 5V (High Imp)
< 2ns typical @ 4.4V (50 ohm)
Slew Rate 2 - - V/ns
Overshoot
< 100mV + 85% of pulse amplitude
into ≥ 1K ohm
< 100mV + 20% of pulse amplitude into 50 ohm