Concepts and Features
R&S
®
ZNB/ZNBT
230
User Manual 1173.9163.02 ─ 53
ing to the MIPI® Alliance "System Power Management Interface Specification" and 10
General Purpose Input/Output (GPIO) pins. RFFE command execution and GPIO volt-
age settings can be synchronized with the sweep (sweep sequencer functionality);
however, RFFE read is not supported in sweep sequencer mode.
Versions and variants
The following variants of the RFFE-GPIO extension board are available:
●
R&S
ZN-B15 variant
02
, order number 1323.9355.
02
●
R&S
ZN-B15 variant
03
, order number 1323.9355.
03
, including current and voltage
measurements for all RFFE and GPIO pins
●
R&S
ZN-Z15 variant
02
, order number 1325.5905.
02
, the external version of
R&S
ZN-B15 variant
02
●
R&S
ZN-Z15 variant
03
, order number 1325.5905.
03
, the external version of
R&S
ZN-B15 variant
03
Information about the voltage and current levels is available in
●
For the R&S
ZNBT, only the external versions R&S
ZN-
Z
15 can be used.
●
Currently, the external versions have to be connected via Direct Control, which in
turn requires
option R&S
ZNB/ZNBT-B12.
●
No matter if connected internally or externally, there is no need to perform any kind
of calibration or alignment of the extension board. The analyzer firmware automati-
cally detects and supports it. The controlled devices can be hot-plugged.
●
The analyzer firmware only supports a single RFFE GPIO interface board.
Mounting the internal unit (R&S
ZNB only)
The internal version R&S
ZN-B15 of the RFFE-GPIO extension board uses the same
slot as the Bias Tee option R&S
Chapter 5.7.7, "Bias Tees (R&S
on page 227). In case you have already installed the Bias Tee option, you have
to remove it first.
Risk of board and instrument damage
Please
turn off the R&S
ZNB
before mounting an internal RFFE-GPIO extension
board R&S
ZN-B15. A hot plug installation is not supported and can damage board
and instrument.
Current and voltage measurements (variants 03 only)
For test purposes, variants 03 of the R&S
ZN-B15/-Z15 can apply constant, pin-spe-
cific output voltages not only to the GPIO pins but also to the individual RFFE pins.
Furthermore it can measure the (resulting) voltages/currents at these pins using suita-
Optional Extensions and Accessories
