Keysight 34980A - Page 212

4 Introduction to the Plug-In Modules for the 34980A
212 Keysight 34980A Mainframe User’s Guide
Module Description Insertion
Loss
Isolation Freq
Range
VSWR Input
Impedance
Comments
34941A Quad 1x4 50Ω 3GHz RF multiplexer 0.6 dB > 58 dB 3 GHz < 1.25 50Ω @ 1 GHz
34942A Quad 1x4 75Ω 1.5GHz RF
multiplexer
0.6 dB > 60 dB 1.5 GHz < 1.35 75Ω @ 1 GHz
34945A/
34945EXT
Microwave switch attenuator/driver Can drive up to 64 external switch coils; 32 SPDT switches,8 multiport
switches, 8 attenuators, or a combination. Expand with additional
34945EXTs.
34946A
[a]
Dual 1x2 SPDT terminated
microwave switch.
< 0.42 dB
< 0.69 dB
> 85 dB
> 67 dB
4 GHz
or 20
GHz
< 1.15
< 1.30
50Ω @ 4 GHz
@ 20 GHz
34947A
[a]
Triple 1x2 SPDT unterminated
microwave switch
< 0.42 dB
< 0.69 dB
> 85 dB
> 67 dB
4 GHz
or 20
GHz
< 1.15
< 1.30
50Ω @ 4 GHz
@ 20 GHz
System Control Modules
34950A 64-bit digital I/O with memory and
counter
Eight 8-bit digital I/O channels with programmable polarity, thresholds up to
5V, with handshaking protocols and pattern memory. Two 10MHz frequency
counters and programmable clock output to 20 MHz.
34951A 4-channel isolated D/A converter
with waveform memory
Output DC voltage up to ± 16 V or DC current up to ± 20 mA. Output
waveforms with a 200 kHz update rate and 16 bits of resolution. Use
on-board memory to create point-to-point waveforms with more than
500,000 points.
34952A Multifunction module with 32-bit
DIO, 2-ch D/A and totalizer
Four 8-bit digital I/O channels, two ± 12-V analog outputs, and 100 kHz
gated totalizer.
34959A Breadboard module Provides access to the +12V and +5V supplies, 16 GPIO ports and 28 relay
line drives
[a] Requires N1810 Switch Options 124 (24 volt coils), 201 (D submin. 9-pin conn.), and 402 (Position Indicators)