HP 34970A manual 405

Chapter 9 Specifications

Module Specifications

Module Specifications

HP 34905A, 34906A

		RF Multiplexer
General		34905A		34906A
Number of Channels		Dual 1x4		Dual 1x4
		50Ω		75Ω
Open/Close Speed			60/s
Maximum Input
Voltage (dc, ac rms)			42 V
Current (dc, ac rms)		0.7 A
Power (W, VA)		20 W
DC Characteristics
Offset Voltage [1]		< 6 μV
Initial Closed Channel R [1]		< 0.5Ω
Isolation (ch-ch, ch-earth)		> 1 GΩ
Other
Switch Life	No Load (typical)		5M
Switch Life	Rated Load (typical) [2]		100k
Temperature	Operating	0 °C to 55 °C
Temperature	Storage	-20 °C to 70 °C
Humidity (non-condensing)		40 °C / 80% R.H.

The ac performance graphs are shown on the following page.

AC Characteristics			34905A		34906A
Bandwidth [3]			2 GHz		2 GHz
Insertion Loss (dB)	10 MHz		-0.1		-0.1
100		MHz	-0.4		-0.4
500 MHz			-0.6		-0.5
	1	GHz	-1.0		-1.0
	1.5	GHz	-1.2		-1.5
	2	GHz	-3.0		-2.0
SWR	10 MHz		1.02		1.02
100 MHz			1.05		1.05
500 MHz			1.20		1.25
	1	GHz	1.20		1.40
	1.5	GHz	1.30		1.40
	2	GHz	1.40		2.00
Ch-Ch Cross Talk (dB) [4]	10 MHz		-100		-85
100 MHz			-85		-75
500 MHz			-65		-65
	1	GHz	-55		-50
	1.5	GHz	-45		-40
	2	GHz	-35		-35
Risetime			< 300 ps
Signal Delay			< 3 ns
Capacitance	HI to LO		< 20 pF
Volt-Hertz Limit				1010

[1]Errors included in DMM measurement accuracy specifications

[2]Applies to resistive loads only

[3]Bandwidth direct to module SMB connectors

[4]50Ω source, 50Ω load

410