Difference between revisions of "SBX"
(→RF Performance Data) |
(→RF Specifications) |
||
| Line 81: | Line 81: | ||
===Input Power Levels=== | ===Input Power Levels=== | ||
* The maximum input power for the SBX is -15 dBm. | * The maximum input power for the SBX is -15 dBm. | ||
| + | |||
| + | ==RF Performance Data== | ||
| + | * [http://files.ettus.com/performance_data/sbx/SBX-without-UHD-corrections.pdf SBX without UHD Corrections] | ||
==Hardware Specifications== | ==Hardware Specifications== | ||
Revision as of 14:14, 19 November 2018
Contents
- 1 Device Overview
- 2 Key Features
- 3 Daughterboard Specifications
- 4 RF Specifications
- 5 RF Performance Data
- 6 Hardware Specifications
- 7 Environmental Specifications
- 8 USRP Compatibility
- 9 Phase Synchronization
- 10 Schematics
- 11 Key Component Datasheets
- 12 Drawings
- 13 RF Connectors
- 14 Certifications
- 15 Certificate of Volatility
- 16 Downloads
Device Overview
The SBX is a wide bandwidth transceiver that provides up to 100 mW of output power, and a typical noise figure of 5 dB. The local oscillators for the receive and transmit chains operate independently, which allows dual-band operation. The SBX is MIMO capable, and provides 40 MHz or 120 MHz of bandwidth. The SBX is ideal for applications requiring access to a variety of bands in the 400 MHz-4400 MHz range. Example application areas include WiFi, WiMax, S-band transceivers and 2.4 GHz ISM band transceivers.
The SBX is capable of phase coherent operation, and therefore is suitable for MIMO and Phased Array applications.
Key Features
|
 |
 |
Daughterboard Specifications
Features
- 2 quadrature frontends (1 transmit, 1 receive)
- Defaults to direct conversion
- Can be used in low IF mode through lo_offset with uhd::tune_request_t
- Independent receive and transmit LO's and synthesizers
- Allows for full-duplex operation on different transmit and receive frequencies
- Can be set to use Integer-N tuning for better spur performance with uhd::tune_request_t
Antennas
Transmit: TX/RX
Receive: TX/RX or RX2
- Frontend 0: Complex baseband signal for selected antenna
- Note: The user may set the receive antenna to be TX/RX or RX2. However, when using an SBX board in full-duplex mode, the receive antenna will always be set to RX2, regardless of the settings.
Gains
- Transmit Gains: PGA0, Range: 0-31.5dB
- Receive Gains: PGA0, Range: 0-31.5dB
Bandwidths
- SBX: 40 MHz, RX & TX
- SBX-120: 120 MHz, RX & TX
Sensors
- lo_locked: boolean for LO lock state
LEDs
- All LEDs flash when daughterboard control is initialized
- TX LD: Transmit Synthesizer Lock Detect
- TX/RX: Receiver on TX/RX antenna port (No TX)
- RX LD: Receive Synthesizer Lock Detect
- RX1/RX2: Receiver on RX2 antenna port
RF Specifications
Freq Range
- 400MHz - 4.4GHz
Noise Figure
- 4 - 5 dB @ (400MHz ~ 1.5GHz)
- 5 - 7 dB @ (1.5GHz ~ 3GHz)
- 7 - 12dB @ (3GHz ~ 4.4GHz)
RX IIP3 (Max)
- 16 ~ 22 dBm
RX IQ Imbalance
- -20 dBc @ (400MHz ~ 600MHz)
- -30dBc @ (600MHz ~ 4.4GHz)
TX Power (Max)
- 20 dBm @ (400MHz ~ 3.5GHz)
- 18 - 20dBm @ (3.5GHz ~ 4.4GHz)
TX OIP3
- 26 - 30dBm @ (400MHz ~ 1.5GHz)
- 30 dBm @ (1.5GHz ~ 4.4GHz)
TX IQ Imbalance
- -20 dBc @ (400MHz ~ 600MHz)
- -30dBc @ (600MHz ~ 4.4GHz)
Input/Output Impedance
- All RF Ports are matched to 50 Ohm with -10dB or better return loss generally. Detailed test is pending.
Input Power Levels
- The maximum input power for the SBX is -15 dBm.
RF Performance Data
Hardware Specifications
- Ettus Research recommends to always use the latest stable version of UHD
SBX
- Current Hardware Revision: 5.1
- Minimum version of UHD required: 3.8.0
Environmental Specifications
Operating Temperature Range
- 0-40 °C
Operating Humidity Range
- 10% to 90% non-condensing
USRP Compatibility
SBX-40
- N or X Series
SBX-120
- X Series only
Phase Synchronization
The SBX daughterboard is capable of phase-synchronous operation, and is recommended for phase-coherent applications. The UBX and TwinRX daughterboards are also recommended for phase-coherent applications.
Schematics
SBX
Key Component Datasheets
| Part Number | Description | Schematic ID (Page) |
|---|---|---|
| MGA82563 | Amplifier | U1, U5, U4 (1) |
| AS225-313LF | SPDT Switch | U3, U6 (1) |
| HMC624LP4E | ATTENUATOR | U2, U7 (1) |
| LFCN-5850+ | Low Pass Filter | FL1 (1) |
| PHA-1+ | Amplifier | U8 (1) |
| GVA-84+ | Amplifier | U9 (1) |
| ADL5380ACPZ | Quadrature Demodulator | U11 (2) |
| ADA4927-2YCPZ | Differential ADC Driver | U10 (2) |
| AD8591ARTZ-REEL | Amplifiers | U31 (2) |
| ADF4350BCPZ | Synthesizer with Integrated VCO | U23 (3); U24 (6) |
| SKY13267 | Diversity Switch | U12 (3); U25 (6) |
| LFCN-1200+ | Low Pass Filter | FL13 (3); FL12 (6) |
| TC1-1-43A+ | RF Transformer | T3 (2); T2, T5 (3); T4, T6 (6) |
| LP3878MR-ADJ | Voltage Regulator | U13, U14 (4); U19, U20 (5) |
| NC7WZ04P6X | Dual Inverter | U15, U16 (4); U21 (5); U27 (6); U26 (3) |
| 24LC024 | EEPROM | U17 (4); U22 (5) |
| ADL5375 | Quadrature Modulator | U18 (5) |
Drawings
RF Connectors
- The SBX daughterboard features female SMA connectors for both the TX/RX and RX2 connectors.
Certifications
RoHS
As of December 1st, 2010 all Ettus Research products are RoHS compliant unless otherwise noted. More information can be found at http://ettus.com/legal/rohs-information
China RoHS
Management Methods for Controlling Pollution Caused by Electronic Information Products Regulation
Chinese Customers
National Instruments is in compliance with the Chinese policy on the Restriction of Hazardous Substances (RoHS) used in Electronic Information Products. For more information about the National Instruments China RoHS compliance, visit ni.com/environment/rohs_china.
