Introduction - Rohde & Schwarz R&S ZN-Z15 Manual Del Usuario

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R&S ZN-Z15
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Introduction

An RFFE - GPIO Extension for the R&S ZNx Family
The trend in mobile radio communication is towards higher scale of integration of
external components such as filters, switches, low noise and power amplifiers. In
addition to the traditional RF measurements, T&M equipment must also handle
new features and developments, such as DUT configuration via GPIO and han-
dler I/O interfaces and via the MIPI
For these kind of applications the R&S ZNB can be equipped with an internal
RFFE - GPIO extension board (option R&S ZNB-B15), offering a 25 pin female
connector interface with 2 independent RF Front-End (RFFE) interfaces accord-
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ing to the MIPI Alliance "System Power Management Interface Specification"
and 10 General Purpose Input/Output (GPIO) pins.
However, as more and more applications require these kinds of interfaces and
with the advent of the mutiport analyzer R&S ZNBT a more flexible solution was
required. The external RFFE interface R&S ZN-Z15 is equipped with the same
RFFE - GPIO interface as the R&S ZNB-B15. It can be connected to and control-
led by any R&S ZNB or R&S ZNBT. The connection can be established via USB,
LAN or Direct Control.
● In the initial release only connection via Direct Control is supported.
● A Direct Control connection requires the Device Control option "B12" on
the master R&S ZNB or R&S ZNBT.
To establish the Direct Control connection, the analyzer has to be
switched off. Otherwise the R&S ZN-Z15 is not properly detected.
● The external RFFE interface allows to store multiple sequences of
RFFE commands and GPIO voltage settings, which can then be trig-
gered in various ways (sequencer mode).
Note however that RFFE read is not supported in sequencer mode
● Variant 03 of the R&S ZN-Z15 (order no. 1325.5905.03) additionally
supports voltage / current measurement with switchable source resist-
ance
● For more information about the voltage control levels of the RFFE and
GPIO see
User Manual 1177.5479.02 ─ 02
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Chapter 3, "Instrument
RFFE interface.
Functions",
Introduction
on page 15
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