USRP-2954 Specifications
- Updated2025-02-24
- 7 minute(s) read
The USRP-2954 contains a GPS-disciplined oscillator (GPSDO), which enables you to lock the internal clocks to a GPS reference signal, synchronize using GPS timing information, and query GPS location information.
Definitions
Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.
Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.
- Typical specifications describe the performance met by a majority of models.
- Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.
Specifications are Characteristics unless otherwise noted.
Conditions
Specifications are valid at 25 °C unless otherwise noted.
Pinout
Use the pinout to connect to terminals on the .
Connector | Use | |
---|---|---|
JTAG | A USB port that connects the host computer to the device FPGA for recovery purposes. This port can be used with the Xilinx iMPACT configuration tool to temporarily load a new bitfile. | |
RF 0 | TX1 RX1 | Input and output terminal for the RF signal. TX1 RX1 is an SMA (f) connector with an impedance of 50 Ω and is a single-ended input or output channel. |
RX2 | Input terminal for the RF signal. RX2 is an SMA (f) connector with an impedance of 50 Ω and is a single-ended input channel. | |
AUX I/O | General-purpose I/O (GPIO) port. AUX I/O is controlled by the FPGA. | |
RF 1 | TX1 RX1 | Input and output terminal for the RF signal. TX1 RX1 is an SMA (f) connector with an impedance of 50 Ω and is a single-ended input or output channel. |
RX2 | Input terminal for the RF signal. RX2 is an SMA (f) connector with an impedance of 50 Ω and is a single-ended input channel. |
LED | Description | Color | State | Indication | |
---|---|---|---|---|---|
RF 0 | TX1 RX1 | Indicates the transmit status of the device. | OFF | — | The device is not active. |
Red | Solid | The device is transmitting data. | |||
Green | Solid | The device is receiving data. | |||
RX2 | Indicates the receive status of the device. | OFF | — | The device is not receiving data. | |
Green | Solid | The device is receiving data. | |||
REF | Indicates the status of the reference signal. | OFF | — | There is no reference signal, or the device is not locked to the reference signal. | |
Green | Blinking | The device is not locked to the reference signal. | |||
Solid | The device is locked to the reference signal. | ||||
PPS | Indicates the pulse per second (PPS). | OFF | — | There is no PPS timing reference signal, or the device is not locked to the reference signal. | |
Green | Blinking | The device is locked to the PPS timing reference signal. | |||
GPS | Indicates whether the GPSDO is locked. | OFF | — | There is no GPSDO or the GPSDO is not locked. | |
Green | Solid | The GPSDO is locked. | |||
LINK | Indicates the status of the link to a host computer. | OFF | — | There is no link to a host computer. | |
Green, yellow, or red | Solid | The host is actively communicating with the device. | |||
RF 1 | TX1 RX1 | Indicates the transmit status of the device. | OFF | — | The device is not active. |
Red | Solid | The device is transmitting data. | |||
Green | Solid | The device is receiving data. | |||
RX2 | Indicates the receive status of the device. | OFF | — | The device is not receiving data. | |
Green | Solid | The device is receiving data. |
Connector | Use |
---|---|
PWR | Input that accepts a 9 V to 16 V, 6 A external DC power connector. |
1G/10G ETH | Two SFP+ input terminals used for 1G ETH or 10G ETH connectivity with the host driver. Not currently supported in LabVIEW FPGA. |
REF OUT | Output terminal for an external reference signal for the LO on the device. REF OUT is a female SMA connector with an impedance of 50 Ω, and it is a single-ended reference output. The output signal at this connector is 10 MHz at 3.3 V. |
REF IN | Input terminal for an external reference signal for the LO on the device. REF IN is a female SMA connector with an impedance of 50 Ω, and it is a single-ended reference input. REF IN accepts a 10 MHz signal with a minimum input power of 0 dBm (0.632 Vpk-pk) and a maximum input power of 15 dBm (3.56 Vpk-pk) for a square wave or sine wave. |
PCIe x4 | Port for a PCI Express Generation 1, x4 bus connection through an MXI Express four-lane cable. |
PPS TRIG OUT | Output terminal for the pulse per second (PPS) timing reference. PPS TRIG OUT is a female SMA connector with an impedance of 50 Ω, and it is a single-ended input. The output signal is 0 V to 3.3 V TTL. You can also use this port as triggered output (TRIG OUT) that you program with the PPS Trig Out I/O signal. |
PPS TRIG IN | Input terminal for pulse per second (PPS) timing reference. PPS TRIG IN is a female SMA connector with an impedance of 50 Ω, and it is a single-ended input channel. PPS TRIG IN accepts 0 V to 3.3 V TTL and 0 V to 5 V TTL signals. You can also use this port as a triggered input (TRIG IN) that you control using NI-USRP software. |
GPS ANT |
Input terminal for the GPS antenna signal. GPS ANT is a female SMA connector with a maximum input power of -15 dBm and an output of DC 5 V to power an active antenna.
Notice Do not terminate the GPS ANT port if you do not use it.
|
Transmitter
Number of channels | 2 |
Frequency range | 10 MHz to 6 GHz |
Frequency step | <1 kHz |
Maximum output power (Pout), 10 MHz to 4 GHz | 50 mW to 100 mW (17 dBm to 20 dBm) |
Maximum output power (Pout), 4 GHz to 6 GHz | 5 mW to 50 mW (7 dBm to 17 dBm) |
Gain range[1]1 The output power resulting from the gain setting varies over the frequency band and among devices. | 0 dB to 31.5 dB |
Gain step | 0.5 dB |
Maximum instantaneous real-time bandwidth[2]2 The USRP-2954 transmitter path has 160 MHz of bandwidth throughout the full frequency range of the device. | 160 MHz |
Maximum I/Q sample rate | 200 MS/s |
Digital-to-analog converter (DAC) resolution | 16 bit |
Receiver
Number of channels | 2 |
Frequency range | 10 MHz to 6 GHz |
Frequency step | <1 kHz |
Gain range[3]3 The received signal amplitude resulting from the gain setting varies over the frequency band and among devices. | 0 dB to 37.5 dB |
Gain step | 0.5 dB |
Maximum input power (Pin) | -15 dBm |
Noise figure | 5 dB to 7 dB |
Maximum instantaneous real-time bandwidth[4]4 The USRP-2954 receiver path has 84 MHz of bandwidth for center frequencies from 10 MHz to 500 MHz. | 160 MHz |
Maximum I/Q sample rate | 200 MS/s |
Analog-to-digital converter (ADC) resolution | 14 bit |
GPS Disciplined Oscillator (GPSDO)
OCXO (not locked to GPS) | 25 ppb |
OCXO (locked to GPS) | 5 ppb |
Voltage | 5 V |
Power | 0.7 W |
Power Requirements
Input voltage | 9 V to 16 V, DC |
Input current | 7.5 A, maximum |
Typical power consumption | 38 W to 44 W, varies by application |
Onboard DRAM
Memory size | 1,024 MB |
Physical Characteristics
(L × W × H) | 26.67 cm × 4.06 cm × 21.84 cm (10.5 in. × 1.6 in. × 8.6 in.) |
Weight | 1.588 kg (3.50 lb) |
Environment
Maximum altitude | 2,000 m (800 mbar) (at 25 °C ambient temperature) |
Pollution Degree | 2 |
Indoor use only.
Operating Environment
Operating temperature | 23 °C ± 5 °C |
Relative humidity range | 10% to 90%, noncondensing (tested in accordance with IEC 60068-2-56) |
1 The output power resulting from the gain setting varies over the frequency band and among devices.
2 The USRP-2954 transmitter path has 160 MHz of bandwidth throughout the full frequency range of the device.
3 The received signal amplitude resulting from the gain setting varies over the frequency band and among devices.
4 The USRP-2954 receiver path has 84 MHz of bandwidth for center frequencies from 10 MHz to 500 MHz.