Keysight 44478B Multiplexer Module, DC - 1.3 GHz

HP/Agilent 4447B Dual Multiplexer Module 1.3GHz, 75 ohms
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Keysight 44478B
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Datasheet

The Keysight 44478B Multiplexer Module is an ideal choice for broadband switching of high-frequency or fast pulse signals. Dual 1-to-4 multiplexers provide bi-directional switching of signals from DC to 1.3GHz. High-channel isolation (>55 dB at 1 GHz) assures quality dynamic-range measurements using spectrum, network, or distortion analyzers. Each 1-to-4 multiplexer consists of seven relays in a "tree" structure, which provides high isolation and low VSWR (voltage standing wave ratio). All the connectors on the modules edge are female BNC for ease of wiring. Off-channels can be terminated in resistors to maintain proper operation of DUT circuitry. Simply plug a 50/75 ohms SMB type resistive termination onto the on-board male SMB connector provided for each channel.

 

Features:

  • Insertion loss less than 1.9dB at 1.3GHz
  • Switching up to 1A, 24W or 24VA
  • Maximum Voltage: 42V, DC+AC peak
  • Maximum Scan Rate: 43 Chans/sec
  • Maximum Power:
  • Per channel: 24W, 24VA or 44dBm, Characteristic Impedance: 75 ohms
  • Maximum Current: 1A

 

Specifications:

Input Characteristics
Maximum Scan Rate 43 Chans./sec
Maximum Voltage 42 V, DC + AC peak
Maximum Current 1 A
Maximum Power
(Per channel)
24 W, 24 VA or 44 dBm
Characteristic Impedance 75 Ω
DC Performance
Thermal Offset <6 μV (<2 μV, Typ.)
Initial Closed
Channel Resistance
<1 Ω
Insulation Resistance
(between terminals)<(25 °C, 40% RH)
>1010 Ω
Capacitance
Center-Center <0.006 pF
Center-Shield <60 pF
Rise Time <300 psec
Signal Delay <3 nsec
AC Performance
Insertion Loss
≤(40 °C, 95% RH)
10 MHz <0.3 dB
100 MHz <0.7 dB
500 MHz <1.5 dB
1.3 GHz <3.0 dB
≤(25 °C, 40% RH) 10 MHz <0.2 dB
100 MHz <0.5 dB
500 MHz <1.1 dB
1.3 GHz <1.9 dB
Crosstalk
Channel-Channel, Channel-Common
10 MHz <-90 dB
100 MHz <-80 dB
500 MHz <-65 dB
1.3 GHz <-55 dB
Group-Group, Module-Module 10 MHz <-90 dB
100 MHz <-80 dB
500 MHz <-70 dB
1.3 GHz <-60 dB
VSWR 10 MHz <1.20
100 MHz <1.25
500 MHz <1.35
1.3 GHz <1.55