PXI Modules 3066 PXI Multi-Way Active RF Combiner Data Sheet The most important thing we build is trust 250 MHz to 6 GHz RF signal conditioning module for multi- UE, MIMO and Smartphone testing Four full duplex DUT test interfaces and INPUT / OUTPUT interfaces to a signal analyzer and signal generator Independent multi stage gain settings for all forward and reverse paths RF output fine level control to each DUT test port High speed RF gain path switching (<100 μs) >60 db isolation between DUT test ports +34 dbm CW / +38 dbm Peak input power rating List Mode operation with PXI 3000 Series RF modules The PXI 3066 Multi-way Active RF Combiner is designed to help lower the cost of test in high volume manufacturing. When used in conjunction with PXI 3000 Series RF modular instruments and measurement software it enables simultaneous testing of up to 4 mobile communications devices in parallel using a single vector signal generator and a single vector signal analyzer. Figure 1. Simplified block diagram of PXI 3066
Figure 2. Parallel test of 4 transceivers PXI 3066 works on the principle that the efficiency of wireless device testing can be improved by maximizing the utilization of high value capital test assets. Improved test system efficiency is gained by sharing or multiplexing resources to avoid idle periods. During receiver testing PXI 3066 enables the output from a single vector signal generator (VSG) to be broadcast to or multiplexed between up to 4 full duplex DUT test interfaces. The output level at each DUT test port is independently adjustable. This ensures that the exact RF level can be set at the device under test input regardless of any variation in external losses. Receiver sensitivity measurements for multiple devices can therefore be performed concurrently saving test time. During transmitter testing PXI 3066 provides RF power combining or multiplexing between up to 4 full duplex DUT test ports and a single vector signal analyzer (VSA). Temperature and frequency compensated path loss data stored in the module may be queried and used to correct level measurements on all inputs. The total flexibility provided by this novel design can be utilized in a wide variety of test plan designs. In one example, 4 mobile UE transceivers can be synchronized to a common broadcast downlink. This then enables all devices to remain synchronized with the tester permitting their transmit outputs to be sequentially switched into the VSA, whilst in parallel executing receiver sensitivity measurements as shown in the figure 2. In cases where device under test control overheads represent the majority of test, this results in dramatic test time reductions. Another application for 3066 is to connect a single VSA / VSG to a device with multiple RF I/O ports such as smart phones. This eliminates complex external switching arrangements and reduces measurement uncertainty or the need for periodic system level calibration. 3066 can also be used when testing devices with diversity or MIMO antenna connections such as used in cdma2000, LTE and WiFi. Configurable Paths RF INPUT to DUT 1 to 4 ports (source channels) PXI 3066 provides three coarse gain modes; Gain mode 0 (bypass), Gain mode 1 (low) and Gain mode 2 (high). In addition, each path can be isolated with the test port terminated into 50 Ω Fine level control is provided in each path to allow balancing of all path losses at the device under test input. Figure 3. Gain modes for each source channel 1 to 4
DUT 1 to 4 ports to RF OUTPUT (receive channels) PXI 3066 provides three coarse gain modes; Gain mode 0 (bypass), Gain mode 1 (low) and Gain mode 2 (high). In addition, each path can be isolated with the test port terminated into 50 Ω Temperature compensation data is stored within the module for each gain mode and for each receive channel. Figure 4. Path modes for each receive channel 1 to 4 High Port to Port Isolation PXI 3066 provides >60 db of isolation between DUT 1 to 4 ports to ensure mutual interference between test devices is avoided and >25 db of isolation between RF input and RF output ports, (below 3 GHz).
Compact Form Factor Figure 5. 3066 typical port to port isolation PXI 3066 occupies 2 x 3U slot widths thus support highly compacted test systems to save production floor space and simplify test fixture design. Linearity 3rd order performance of the different gain modes has been carefully designed to work with and complement other PXI Digitizer and Signal Generator products. Calibration Data All calibration data for the module is stored internally and can be queried from the driver software. Triggering Path routing parameters can either be controlled directly from software or from hardware list memory addressing. A user pre-defined list of configurations can be stored in memory which is then recalled using a list controller. Each list entry contains the settings for each path between the DUT 1 to 4 test ports and the RF Input and RF output ports. List addresses can be routed to the module in parallel or serial form. Parallel or serial list addresses may be input from the PXI backplane trigger bus, or serial list addresses input via the front panel TRIG 1 & 2 connectors. The TRIG 1 & 2 connectors may also be configured as outputs, for example to route a serial list address to another module. Both the source and receiver channels have separate list memory areas so the path routing for each is setup independently. For example the source (downlink) may be slaved to a signal generator list controller, and the receiver (uplink) slaved to a RF digitizer list controller. Software The 3066 is supplied with a C /.net VXIpnp compatible driver with manual control supported in PXI Studio 2.
SPECIFICATION Specifications apply when used in conjunction with the driver software supplied with the module or a later version. All specifications apply when the module is used in a PXI standard compliant chassis and following a warm up period of 30 minutes. All figures assume operation in a 50Ω system unless stated, with all unused ports terminated in 50Ω. INTERFACE Definition of connection names:- Repeatability After warm up following a return from a change of operating mode valid for at least 2 hours and excluding temperature influence <±0.1 db FREQUENCY RESPONSE Typically <1 db across any 200 MHz bandwidth Typically <0.1 db across any 10 MHz bandwidth RETURN LOSS Port Return Loss (db) 3 GHz >3 GHz DUT 1-4 >20 >19, typ 20 RF IN/RF OUT >14 >10, typ 14 PORT TO PORT ISOLATION FREQUENCY RANGE 250 MHz to 6 GHz INSERTION LOSS RF INPUT to DUT 1 to 4 Ports (source channels) Operating modes: Gain mode 0, Gain mode 1, Gain mode 2 Insertion loss with Fine Level Control set to 0 db Loss (db) Gain mode 0 Gain Mode 1 Gain Mode 2 Maximum 48 29 4 Minimum 35 16-9 RF Input to DUT, Fine Level Control Range 0 db to -4 db with resolution 0.1 db Relative Level Error between DUT Ports ±0.25 db typical 1 Accuracy 2 (23 degrees ±5 degrees) Frequency (GHz) Accuaracy (±/db) Gain mode 0 3 0.3 >3 0.7 Gain mode 1 3 0.3 >3 0.5 Gain mode 2 3 0.5 >3 0.7 DUT 1 to 4 Ports to RF OUTPUT (receive channels) (Un-used ports terminated into 50 ) RF INPUT to RF OUTPUT 3 3 GHz, >25 db, typ. 30 db >3 GHz, >20 db, typ. 25 db DUT-DUT 4 >60 db SWITCHING SPEED Settled to within 0.1 db of final path loss <100 us LINEARITY Source Path, RF Input DUT Output P1dB (1 db Compression Point). Gain offset set to 0 db Typical output power at 1 db gain compression point (dbm) 0 N/A 5 1 >-10 2 >2 Output IP3 (third order intercept point). Gain offset set to 0 db with 1 MHz or 10 MHz tone spacing Typical output power referred TOI (dbm) 0 N/A 1 >5 2 >15 Operating modes: Gain mode 0, Gain mode 1, Gain mode 2 Loss Gain mode 0 Gain mode 1 Gain mode 2 Maximum loss (db) 34 23 11 Minimum loss (db) 21 11-3 1 Both DUT ports in the same operating mode 2 The error in compensation data stored internal to the module 3 Applied when source gain mode set to 1 and receiver gain mode set to 2. Only 1 DUT port active 4 Applies when all active source paths set to same gain mode and all active receiver paths set to same gain mode. Only 1 DUT port active 5 Gain mode 0 has no active gain stages
Receive Path, DUT RF Output Input P1dB (1 db Compression Point 6 ) Operating mode Input IP3 7 (third order intercept point) with 1 MHz or 10 MHz tone spacing SOFTWARE C dll /.NET Provides the ability to set & query path routing, define hardware trigger control mapping, compensate path/system losses PXI Studio plug-in for soft front panel manual control GENERAL Inputs and Outputs Typical input power at 1dB gain compression point (dbm) 0 >38 1 >27 2 >14 Typical input referred TOI (dbm) 0 >45 1 >37 2 >37 Description Connector Coupling DC Impedance Max Power RF INPUT SMA (F) AC 16V 50 25 dbm avg / CW Safety EN 61010-1 Safety requirements for electrical equipment for measurement, control and laboratory use-part 1, General requirements Rated Range of Use Operating Temperature 0 to 50 C, meets IEC-60068-2-1:2007 and 60068-2-2:2007 Operating Humidity 10 to 90% non-condensing, meets IEC-60068-2-78:2001 Conditions of Storage and Transportation Storage Temperature -20 to +70 C, meets IEC-60068-2-1:2007 and 60068-2-2:2007 Storage Humidity 5 to 93% non-condensing, tested to IEC-60068-2-78:2001 Shock 30 g peak, half sine, 9 ms pulse. Tested in accordance with IEC-60068-2-27:2008 Random vibration 5 Hz to 500 Hz, 2.46 g rms non-operating. Tested in accordance with IEC-60068-2-64:2008 Compliance PXI Specification, Revision 2.2, ECN 1 Revision 1.0 VXIplug&play Specifications (VPP-2, VPP-3.x, VPP-4.x and VPP-7) Minimum System Controller Requirements Recommended minimum memory 2 Gbyte Operating System, Windows XP, Windows 7 (32 bit) RF OUTPUT SMA (F) AC 16V 50 DUT 1-4 SMA (F) DC 0V 50 17 dbm avg / CW (reverse power) 34 dbm avg / CW 38 dbm PEP TRIG I/O 1 and 2 SMB (F) High Z TTL Dimensions 2-slot wide x 3U PXI-Hybrid slot compatible module Weight 832 g Power Consumption (Typical) Dissipation: 30 W Current +3.3 V +5 V +12 V -12 V <4 A <4 A <1A <0.5 A Warranty Recommended calibration Interval 2 years 2 years Electromagnetic Compatibility EN61326-1 Emissions Class A, Immunity Table 1 6 DUT RF Output paths share a common output amplifier. IP1dB values given are for a single active path 7 DUT RF Output paths share a common output amplifier. IP3 values given are for a single active path
VERSIONS, OPTIONS AND ACCESSORIES Ordering Numbers Description 3066 PXI RF Multi-Way Active RF Combiner Supplied with 43139/738 1 x SMA-SMA 130 mm link cable 43139/739 1 x SMA-SMA 180 mm link cable Accessories 43139/738 SMA-SMA RF link cable 130 mm 43139/739 SMA-SMA RF link cable 180 mm 43139/783 SMA-SMA RF link cable 240 mm 43139/859 SMB-SMB Link Cable Assembly 150 mm 46885/224 SMA connector saver 82532 SMA 50 ohm termination Service Options W3066/103 Standard Extended Warranty 36 months W3066/103C Standard Extended Warranty 36 months with scheduled calibration W3066/105 Standard Extended Warranty 60 months W3066/105C Standard Extended Warranty 60 months with scheduled calibration
Cobham Wireless - Validation Part No.46891/435, Issue 1, 03/16 www.cobham.com/wireless