PXIe-5655 Specifications
- Updated2023-02-28
- 9 minute(s) read
PXIe-5655 Specifications
PXIe-5655
Nomenclature
In this document, the PXIe-5655 with MMPX connectors and the PXIe-5655 with SMA connectors are referred to inclusively as the PXIe-5655. The information in this document applies to all versions of the PXIe-5655 unless otherwise specified.
Definitions
In this document, the term LO Output refers to the specifications applicable to the LO 0 OUT and LO 1 OUT ports.
Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty. Warranted specifications account for measurement uncertainties, temperature drift, and aging. Warranted specifications are ensured by design or verified during production and calibration
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.
- Typical-95 specifications describe the performance met by 95% (≈2σ) of models with a 95% confidence.
- Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.
- Measured specifications describe the measured performance of a representative model.
Specifications are Warranted unless otherwise noted.
Conditions
All specifications are valid under the following conditions unless otherwise noted.
- 30 minutes warm-up time
- Calibration cycle is maintained
- The PXIe-5655 requires a chassis with slot cooling capacity ≥38 W
- Empty chassis slots contain slot blockers and EMC filler panels to minimize temperature drift and reduce emissions
- Modules are connected with NI cables as shown in PXIe-5841 or PXIe-5842 getting started documentation, available at ni.com/manuals
Warranted specifications are valid over temperature ranges described in Environmental Characteristics unless otherwise noted.
Typical and Typical-95 specifications are valid over ambient temperature ranges of 23 °C± 5 °C unless otherwise noted.
Typical and Measured specifications do not include measurement uncertainty.
LO Frequency
Frequency range | 50 MHz to 7.2 GHz |
Frequency tuning resolution[1] | 1 Hz |
LO Frequency Settling Time
| Frequency Accuracy | Maximum Time No Band Transition (μs), 0 °C to 55 °C | Maximum Time Band Transition[2] (μs), 0 °C to 55 °C |
|---|---|---|
| ≤1 × 10⁻⁶ of final frequency | <100 | <230 |
| ≤0.1 × 10⁻⁶ of final frequency | <130 | <250 |
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These specifications only include frequency settling. They exclude any residual amplitude settling. |
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Internal Frequency Reference
Frequency | 10 MHz | ||||||||
Initial calibration accuracy (temperature 15 °C to 35 °C) | ±60 × 10-9 | ||||||||
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Accuracy | Initial Adjustment Accuracy ± Aging ± Temperature Stability | ||||||||
Spectral Purity
| LO Frequency | 10 kHz Offset | 100 kHz Offset |
|---|---|---|
| 2.4 GHz | -122 | — |
| 5.8 GHz | -115 | -123 |
| 7.2 GHz | -114 | -121 |
| During phase noise measurement, the reference clock is the PXIe-5655 onboard oven-controlled crystal oscillator (OCXO). Warranted specifications are measured at 23 °C ± 5 °C. | ||
| LO Frequency | 10 kHz Offset | 100 kHz Offset | ||
|---|---|---|---|---|
| Typical | Measured | Typical | Measured | |
| 2.4 GHz | -127.0 | -129.5 | -133.6 | -138.9 |
| 5.8 GHz | -118.9 | -120.9 | -125.6 | -130.6 |
| 6.3 GHz | -117.9 | -119.9 | -124.5 | -129.2 |
| 7.2 GHz | -117.5 | -120.0 | -124.1 | -129.4 |
| During phase noise measurement, the reference clock is the PXIe-5655 onboard OCXO. | ||||
LO Power
LO output power range | -2 dBm to +10 dBm |
| LO Frequency | 23 °C ± 5 °C | 23 °C ± 5 °C (Typical) | 0 °C to 55 °C (Typical) |
|---|---|---|---|
| 50 MHz to <150 MHz | 1.5 | 0.8 | 1.6 |
| 150 MHz to <3.6 GHz | 0.9 | 0.5 | 1.3 |
| 3.6 GHz to <5.0 GHz | 1.0 | 0.5 | 0.7 |
| 5.0 GHz to <5.5 GHz | 1.3 | 0.5 | 0.9 |
| 5.5 GHz to 6.0 GHz | 1.6 | 0.7 | 1.2 |
| >6.0 GHz to 7.2 GHz | 1.7 | 0.8 | 1.7 |
| Amplitude accuracy is measured from -2 dBm to +10 dBm. | |||
LO Output Amplitude Settling Time
<0.5 dB of final value | 40 μs, typical |
<0.1 dB of final value | 70 μs, typical |
LO Isolation
LO 0 to LO 1 | -70 dBc, typical |
LO Loopback Power
LO loopback output power range | -2 dBm to +10 dBm |
| Center Frequency | 23 °C ± 5 °C (Nominal) | 0 °C to 55 °C (Nominal) |
|---|---|---|
| 50 MHz to <150 MHz | 1.2 | 1.6 |
| 150 MHz to <3.6 GHz | 0.6 | 0.8 |
| 3.6 GHz to <5.0 GHz | 0.5 | 1.0 |
| 5.0 GHz to <5.5 GHz | 0.6 | 1.1 |
| 5.5 GHz to 6.0 GHz | 0.8 | 1.3 |
| >6.0 GHz to 7.2 GHz | 1.2 | 1.5 |
| In the LO loopback configuration, input to the LO 0 IN or LO 1 IN port is looped to the corresponding LO 0 OUT or LO 1 OUT port with configurable gain. Amplitude accuracy is measured for loopback output levels from -2 dBm to +10 dBm. LO IN power of 0 dBm or higher is required to reach +10 dBm output. | ||
LO Output Nonharmonic Spurs
| LO Frequency | Offset ‑5 MHz to ‑2 kHz 2 kHz to 5 MHz | Offset -100 MHz to ‑10 kHz10 kHz to 100 MHz |
|---|---|---|
| 50 MHz to 7.2 GHz | -65 | -65 |
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Conditions: LO Output Power is 0 dBm and 10 dBm. The signal analyzer resolution bandwidth (RBW) is 200 Hz for the 2 kHz to 500 kHz and 5 kHz to 5 MHz offset windows. The RBW is 20 kHz for the wide offset window. Offset describes the search window around the LO frequency. Performance is not specified outside these windows. |
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LO Output Harmonic Spurs
| LO Frequency | Output Level |
|---|---|
| 50 MHz to 105 MHz | -8 |
| >105 MHz to 7.2 GHz | -30 |
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Conditions: LO Output Power is 0 dBm and 10 dBm. These harmonic related spurs are located at multiples of the LO frequency. |
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| LO Frequency | Sub-Harmonic Level |
|---|---|
| 3.6 GHz to <6.5 GHz | -70 |
| 6.5 GHz to 7.2 GHz | -60 |
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Conditions: Sub-harmonics are measured at 0 dBm and 10 dBm. These sub-harmonic related spurs are located at half of the LO frequency. |
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Front Panel I/O
LO 0 OUT and LO 1 OUT
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Output impedance | 50 Ω, nominal, AC coupled | ||||||||||||
Maximum DC input voltage without damage | ±10 V DC | ||||||||||||
Absolute maximum output power | +18 dBm | ||||||||||||
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LO 0 IN and LO 1 IN
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Input impedance | 50 Ω, nominal, AC coupled | ||||||
Input range | -6 dBm to 6 dBm | ||||||
Input return loss | >12 dB | ||||||
Maximum DC input voltage without damage | ±10 V DC | ||||||
Absolute maximum input power | 17 dBm | ||||||
REF IN
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Frequency | 10 MHz, nominal 100 MHz, nominal 270 MHz, nominal 3.84 MHz × y, nominal, where y is 4, 8, 16, 24, 25, or 32 | ||||||
Lock range[5] | ±10 × 10-6 | ||||||
Amplitude[6] | 0.7 V pk-pk to 3.3 V pk-pk into 50 Ω, typical | ||||||
Input impedance | 50 Ω, nominal | ||||||
Coupling | AC | ||||||
REF OUT
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Frequency | 10 MHz | ||||||
Amplitude | 1.65 V pk-pk into 50 Ω, typical | ||||||
Output impedance | 50 Ω, nominal | ||||||
Coupling | AC | ||||||
PFI 0 (Programmable
Function Input)
Connector | MMPX (female) | ||||||||||||||||||
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Safety Voltages
Connect only voltages that are below these limits.
Absolute maximum input power (LO 0/1 IN) | +17 dBm |
Absolute maximum reverse power (LO 0/1 OUT) | +18 dBm |
Maximum input voltage (REF IN) | 3.3 V pk-pk |
Measurement Category | CAT I/O |
Measurement Category
Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.
Environmental Guidelines
Environmental Characteristics
Temperature and Humidity
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Pollution Degree | 2 | ||||||||||
Maximum altitude | 2,000 m (800 mbar) (at 25 °C ambient temperature) | ||||||||||
Shock and Vibration
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Operating shock | 30 g, half-sine, 11 ms pulse | ||||||
Power Requirements
| Voltage (V) | Current (A), Nominal |
|---|---|
| 3.3 | 1.1 |
| 12 | 2.4 |
| Power is 33 W, nominal. Power consumption is from the 12 V and 3.3 V PXIe Express chassis backplane power supplies. | |
Physical Characteristics
Dimensions | 1U, one-slot PXI Express module 2.05 cm × 12.9 cm × 21.1 cm (0.9 in. × 5.6 in. × 8.3 in.) For more information, visit ni.com/dimensions and search by module number. |
Weight | 570 g (20.1 oz) |
Calibration
Interval | 1 year |
1 When the requested LO frequency and LO Frequency Step Size are multiples of 1 Hz, the PXIe-5655 rounds to a multiple of the LO Frequency Step Size and tunes exactly to the resulting frequency. The precision of tuning is limited only by the accuracy of the frequency reference.
When the requested frequency or the LO Frequency Step Size is not a multiple of 1 Hz, the output frequency is inexact due to floating-point math limitations in the software.
2 Band Transition: This specification accounts for a band transition at 6.3 GHz. Any frequency step where the generated frequency transitions from below to above 6.3 GHz or from above to below 6.3 GHz results in the Maximum Settling Time with Band Transition specification.
3 For 2,400 MHz performance, refer to the Single Sideband Phase Noise (dBc/Hz), Typical and Measured table. PXIe-5655 performance exceeds the production test capability at lower carrier frequencies and larger frequency offsets.
4 Conditions: Averaged performance of multiple modules; reference clock is the PXIe-5655 onboard OCXO; spurs not shown.
5 Initial Adjustment Accuracy ± Aging ± Temperature Stability
6 Jitter performance improves with increased slew rate of input signal.
7 Tested with chassis fan mode set to Auto and cooling profile set to 58 W/82 W in NI Measurement & Automation Explorer (MAX). Not all chassis with slot cooling capacity ≥58 W can achieve this ambient temperature range. Refer to PXI chassis specifications to determine the ambient temperature ranges your chassis can achieve.
8 For chassis with slot cooling capacity = 38 W, the fan speed must be set to HIGH for use in this ambient temperature range.