Agilent E1472A Data Sheet

Data Sheet

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Six 1x4, 50 Ω RF Multiplexer

Agilent E1472A

• 1-Slot, C-size, register based

• Six 1x4 multiplexers

• Switch signals up to 1.3 GHz

• SMB male connectors for high performance

• Controls E1473A/E1475A RF expanders

• Tree-switching for high isolation, low VSWR

Agilent E1472A

Description

The Agilent E1472A 50 Ω RF Multiplexer is a C-size, 1-slot,
register-based VXI module. It is the ideal choice to route

test signals from your application to your test instruments
(i.e., oscilloscope and spectrum, network, distortion
analyzers, or other RF equipment). The E1472A is functionally
identical to the E1474A except for output impedance.

The RF multiplexer can be used as six multiplexers or
combined with others to form a larger tree-switched
multiplexer or a limited stubless matrix. You can easily and
inexpensively expand the E1472A via the E1473A 50Ω RF
multiplexer expander or via the E1475A 75Ω RF multiplexer
expander.

The E1472A can easily be programmed with SCPI commands
to scan multiple channels, where each channel is switched to
its common, one at a time. This module is arranged as six
independent banks of channels (Bank 0 through Bank 5),
each acting as a 1x4 one-wire multiplexer. Only one channel
in each bank can be connected to its common at any time.
The multiplexer relays are arranged in a tree-switched
configuration, providing high isolation and low VSWR. Each
channel consists of a nonlatching armature relay.

Refer to the Agilent Technologies Website for instrument
driver availability and downloading instructions, as well as for
recent product updates, if applicable.

Agilent Technologies

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Cables and Connectors

Various 50 Ω cables are available from Agilent for connecting
to the SMB connectors on the front panel of the multiplexer.
Adapters and other connectors are also available. Connectors
are also available from Johnson Components.
Johnson Components:

U.S.A. Tel.: [phone]
Outside U.S.A. Tel.: [phone]

Fax.: [phone]

Product Specifications

Input

Maximum voltage (center
or shield-to-center, shield
or chassis): 42 V
Maximum current (per channel or common):

DC: 1 A
AC rms: 1 A

Maximum power (per channel or common):

DC: 24 W
AC: 24 VA

DC

Maximum thermal offset: 6 µV
Closed channel resistance
(typical): <1 Ω initial
Insulation resistance
(between any two
terminals): >10E8 Ω≤40 °C, ≤65% RH

AC

Note: For AC performance, ZL=ZS=ZO, ≤40 °C, RH ≤95% for C-size, RH
≤65% for B-size

Characteristic impedance
(Zo):

50 Ω

Insertion loss:

<10 MHz: <0.1 dB
<100 MHz: <0.4 dB
<500 MHz: <0.9 dB
<1.3 GHz: <1.5 dB
<3 GHz (typ): <8.0 dB

Crosstalk (channel-to-channel):

<10 MHz: <–90 dB
<100 MHz: <–80 dB

Crosstalk (channel-to-channel, one channel closed or channel-to­common) (terminated):

<200 MHz: n/a
<500 MHz: <–62 dB
<1.3 GHz: <–50 dB
<3 GHz (typ): n/a

VSWR:

<10 MHz: <1.05
<100 MHz: <1.15
<200 MHz: n/a
<500 MHz: <1.35
<1.3 GHz: <1.5
<3 GHz: n/a

Risetime: <300 ps
Signal delay: <3 ns
Capacitance:

Center-shield: n/a
Chassis-shield: n/a

General Characteristics

Relays: Non-latching armature
Power up/down state: All open
Minimum relay life:

No load: 5x10E6 operations
Rated load: 10E5 operations

General Specifications

VXI Characteristics

VXI device type: Register based, A16, slave only
Size: C
Slots: 1
Connectors: P1/2
Shared memory: None
VXI busses: None
C-size compatibility: n/a

Configuration

Each channel consists of a non-latching armature relay. At
power-on or reset, channels 00, 10, ... 50 are connected to
COM 00, 10, ... 50, respectively, and all other channels are
open (unterminated).
The RF multiplexer can be used as six multiplexers or
combined with others to form a larger tree-switched
multiplexer or a limited stubless matrix as shown in the
accompanying diagram.

To expand the E1472A refer to the E1473A 50Ω RF
multiplexer expander or the E1475A 75Ω RF multiplexer
expander. The E1472A can control other external relays
requiring 5V, 12V, or 24V drive.