20 Keysight 34970A/34972A Service Guide
These modules offer wideband switching capabilities for high frequency and
pulsed signals. Each module is organized in two independent banks of 4-to-1
multiplexers. Both modules offer low crosstalk and excellent insertion loss
performance. To create larger RF multiplexers, you can cascade multiple banks
together. Only one channel in each bank may be closed at a time.
34907A Multifunction Module
– Two 8-bit Digital Input/Output ports, 400 mA sink, 42 V open collector
– 100 kHz Totalize input with 1 Vpp sensitivity
– Two 16-bit, ±12 V Calibrated Analog Outputs
– For detailed information and module block diagrams, see page 162.
Use this module to sense status and control external devices such as solenoids,
power relays, and microwave switches. For greater flexibility, you can read digital
inputs and the count on the totalizer during a scan.
34908A 40-Channel Single-Ended Multiplexer
– 40 channels of 300 V single-ended (common LO) switching
– Built-in thermocouple reference junction
– Switching speed of up to 60 channels per second
– Connects to the internal multimeter
– For detailed information and a module diagram, see page 160.
Use this module for high-density switching applications which require single-wire
inputs with a common LO. All relays are break-before-make to ensure that only
one relay is connected at any time.
To Next Page
Loading...
Need help?
General
