PXIe-6569 Specifications
- Updated2025-04-30
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PXIe-6569 Specifications
PXIe-6569 Specifications
These specifications apply to the following variants of the PXIe-6569:
- PXIe-6569 with 32 LVDS Out, 32 LVDS In
- PXIe-6569 with 64 LVDS In
- PXIe-6569 with 64 LVDS Out
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.
- Measured specifications describe the measured performance of a representative model.
Specifications are Typical unless otherwise noted.
Conditions
PXIe-6569 Pinout
The following figure shows the front panel and pin layout of the Digital Data & Control (DDC) connector on the PXIe-6569.
The following figures show the pinout of the DDC connector on the PXIe-6569 for each connector type. Clock-capable pins are denoted in bold.
Signal Descriptions
The following table describes the signal connections for the PXIe-6569.
Connector Name | Signal Type | Description |
---|---|---|
DO <0...63>+/- | Data | Positive and negative differential terminals for digital output channels 0 through 63. |
DI <0...63>+/- | Data | Positive and negative differential terminals for digital input channels 0 through 63. |
PFI <0,1>+/- | Control | Positive and negative differential terminals for bidirectional PFI channels 0 and 1. |
SE <0...7> | Data | Terminals for bidirectional single-ended channels 0 through 7. |
SE_GND_TERM | Termination | Terminals that provide coupling to the single-ended channels. These signals should be terminated for the best single-ended signal integrity. These are terminated on the PXIe-6569 with 56 Ω to ground. NI recommends that these also be terminated on the user side of the SEARAY cable through a 56 Ω (±10%) resistor to GND. If the user-side termination is not possible, leave it disconnected. |
CLKIN+/-, CLKOUT+/- |
Clock | Terminals for clocking inputs and outputs. |
GND | Ground | Ground reference for signals. |
RSVD | Reserved | These pins are reserved and use of them is not supported by NI. Leave these terminals disconnected. |
Digital I/O
Connector | SAMTEC SEARAY™ |
PXIe-6569 Variant | Signal | Type | Direction |
---|---|---|---|
32 LVDS Out, 32 LVDS In | PFI <0...7> | Single-ended | Bidirectional |
DIFF PFI +/- <0, 1> | Differential | Bidirectional | |
DI +/- <0...31> | Differential | Input | |
DO +/- <0...31> | Differential | Output | |
GND | Ground | — | |
64 LVDS In | PFI <0...7> | Single-ended | Bidirectional |
DIFF PFI +/- <0, 1> | Differential | Bidirectional | |
DI +/- <0...63> | Differential | Input | |
GND | Ground | — | |
64 LVDS Out | PFI <0...7> | Single-ended | Bidirectional |
DIFF PFI +/- <0, 1> | Differential | Bidirectional | |
DO +/- <0...63> | Differential | Output | |
GND | Ground | — |
Digital I/O PFI Channels
Part number for I/O PFI buffers | Texas Instruments, SN74AVC2T245 |
Number of channels | 8 |
Signal type | Single-ended |
Voltage families | 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V |
Input impedance | 50 kΩ |
Output impedance | 56 Ω |
Direction control | Per pin |
Minimum required direction change latency | 13 ns |
Voltage Family | VIL | VIH | VOL (100µA load) |
VOH (100µA load) |
Maximum DC Drive Strength | Digital Data Rate |
---|---|---|---|---|---|---|
3.3 V | 0.8 V | 2.0 V | 0.2 V | 3.0 V | 24 mA | 300 Mbps |
2.5 V | 0.7 V | 1.6 V | 0.2 V | 2.2 V | 18 mA | 300 Mbps |
1.8 V | 0.62 V | 1.29 V | 0.2 V | 1.5 V | 16 mA | 300 Mbps |
1.5 V | 0.51 V | 1.07 V | 0.2 V | 1.2 V | 12 mA | 280 Mbps |
1.2 V | 0.42 V | 0.87 V | 0.2 V | 0.9 V | 6 mA | 240 Mbps |
LVDS Channels
Part number for LVDS buffers | Texas Instruments, DS25BR440 | ||||||
Input impedance | 100 Ω | ||||||
Output impedance | 100 Ω | ||||||
Onboard pulls | 4.12 kΩ to 3.3 V on the inverted pins, and 2.32 kΩ to GND on the non-inverted pins | ||||||
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Bus Interface
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Reconfigurable FPGA
PXIe-6569 modules are available with two FPGA options. The following table lists the FPGA specifications for the PXIe-6569 FPGA options.
FPGA Characteristics | KU035 | KU060 |
---|---|---|
LUTs | 203,128 | 331,680 |
DSP48 slices (25 × 18 multiplier) | 1,700 | 2,760 |
Embedded block RAM | 19.0 Mb | 38.0 Mb |
Data transfers | DMA, interrupts, programmed I/O | |
Default timebase | 80 MHz | |
Timebase reference sources | PXI Express 100 MHz (PXIe_CLK100) | |
Number of DMA channels | 27 | 59 |
Onboard DRAM
DRAM Characteristics | KU035 and KU060 | |
---|---|---|
Memory size | 4 GB (2 banks of 2 GB) | |
DRAM clock rate | 1064 MHz | |
Physical bus width | 32 bit | |
LabVIEW FPGA DRAM clock rate | 267 MHz | |
LabVIEW FPGA DRAM bus width | 256 bit per bank | |
Maximum theoretical data rate | 17 GB/s (8.5 GB/s per bank) |
Environmental Characteristics
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Pollution Degree | 2 | ||||||||
Maximum altitude | 2,000 m (800 mbar)(at 25 °C ambient temperature) | ||||||||
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Maximum Power Requirements
+3.3 V | 2.0 A |
+12 V | 4.0 A |
Maximum total power | 58 W |
Physical Characteristics
Dimensions | 2.0 cm × 12.9 cm × 20.0 cm(0.8 in. × 5.1 in. × 7.9 in.) |
Weight | 495 g (17.5 oz) |
CLOCK IN
Frequency | 10 MHz |
Signal type | LVDS |
Clock Configuration | Clocking IC | Clocking IC Resolution[3]3 This is the resolution of the clock provided to the FPGA. For many applications, the PLL within the FPGA will multiply this (often by 8x), in which case the bit rate frequency resolution will be 8X this value. The Basic CLIP does not multiply this resolution value, so the resolution will be 1X the clocking IC resolution. The SERDES CLIP will multiply this resolution value by 8X. | Description |
---|---|---|---|
Si514 | Si514 | 0.1 Hz | The internal Sample Clock is provided by the Si514. The Si514 clock cannot be locked to external references. The FlexRIO driver may limit the Si514 frequency range to be compatible with the CLIP in use. |
Internal PXI_CLK10 + LMK04832 | LMK04832 | <10 kHz | The internal Sample Clock locks to the PXI 10 MHz Reference Clock, which is provided through the FPGA baseboard. |
External Reference Clock Input + LMK04832[4]4 The External Reference Clock frequency must be 10 MHz and be accurate to ±30 ppm.. | LMK04832 | <10 kHz | The internal Sample Clock locks to the External 10 MHz Reference Clock, which is provided through the front panel connector. |
External Sample/Reference Clock Output | LMK04832 | — | The External Sample/Reference Clock Output is sourced by the LMK04832. The LMK04832 hardware architecture places restrictions on the relationship between the internal Sample Clock and the External Sample/Reference Clock Output as these must be related through divisors available in the chip. The FlexRIO driver manages checking this relationship. |
NI-TClk
You can use the NI-TClk synchronization method and the NI-TClk driver to align the Sample Clocks on any number of supported devices in one or more chassis. For more information about TClk synchronization, refer to the NI-TClk Synchronization Help within the FlexRIO Help. For other configurations, including multichassis systems, contact NI Technical Support at ni.com/support.
Intermodule Synchronization Using NI-TClk for Identical Modules
Synchronization specifications are valid under the following conditions:
- All modules are installed in one PXI Express chassis.
- The NI-TClk driver is used to align the Sample Clocks of each module.
- All parameters are set to identical values for each module.
- Modules are synchronized without using an external Sample Clock.
- The LMK04832 clocking IC is used as the clock source.
- The internal sample clock, sourced by the LMK04832, must be ≥30 MHz.
- NI-TClk synchronization can be used to align digital outputs across several PXIe-6569 modules with sample-level accuracy. The PXIe-6569 output delay adjustments can be used for fine-tuning the skew after TClk adjustment is complete. NI-TClk synchronization supports only PXIe-6569 digital outputs. Digital input channels are not supported.
Skew[5]5 Tighter channel alignment can be achieved using the NI-TClk Sample Clock Delay property to adjust skew across PXIe-6569 modules, and then using ODELAYs to adjust skew within each PXIe-6569 module.,[6]6 Caused by clock and analog delay differences. No manual adjustment performed. Tested with a PXI-1095 chassis. Skew measurements performed with multiple PXIe-6569 modules connected to TB-6569 breakout accessories using Mini-SAS HD-to-SMA breakout cables on each module/terminal block to break channels out to an oscilloscope. Measured at 25 °C. | 400 ps, peak-to-peak, measured |
Transmit clock phase DAC adjustment resolution | 0.7 ps |
IO Delay Adjustment
IDELAY/ODELAY chain resolution | 2.5 ps to 15 ps |
IDELAY/ODELAY minimum guaranteed span | 1.25 ns |
1 The ambient temperature of a PXI system is defined as the temperature at the chassis fan inlet (air intake).
2 Voltage levels are guaranteed by design through buffer specifications.
3 This is the resolution of the clock provided to the FPGA. For many applications, the PLL within the FPGA will multiply this (often by 8x), in which case the bit rate frequency resolution will be 8X this value. The Basic CLIP does not multiply this resolution value, so the resolution will be 1X the clocking IC resolution. The SERDES CLIP will multiply this resolution value by 8X.
4 The External Reference Clock frequency must be 10 MHz and be accurate to ±30 ppm..
5 Tighter channel alignment can be achieved using the NI-TClk Sample Clock Delay property to adjust skew across PXIe-6569 modules, and then using ODELAYs to adjust skew within each PXIe-6569 module.
6 Caused by clock and analog delay differences. No manual adjustment performed. Tested with a PXI-1095 chassis. Skew measurements performed with multiple PXIe-6569 modules connected to TB-6569 breakout accessories using Mini-SAS HD-to-SMA breakout cables on each module/terminal block to break channels out to an oscilloscope. Measured at 25 °C.