Table Of Contents

PXI-6683 Specifications

Version:
    Last Modified: March 13, 2017

    These specifications apply to the PXI-6683 the PXI-6683H unless otherwise noted.

    Definitions

    Warranted specifications describe the warranted performance of a calibrated model under the stated operating conditions.

    Characteristics describe values that are relevant to the use of the model under the stated operating conditions but are not covered by the product warranty.

    • Typical specifications describe product performance met by a majority of the models.
    • Nominal specifications describe additional information about the product performance that may be useful.

    Specifications are Characteristics unless otherwise noted.

    PXI-6683 Specification Conditions

    Specifications are valid for the range 0 °C to 55 °C unless otherwise noted.

    CLKOUT Characteristics

    Output frequency[1]

    10 MHz

    Duty cycle distortion[2]

    <1%, typical

    Output impedance

    50 Ω, nominal

    Output coupling

    AC

    PXI_CLK10 to CLKOUT delay

    8 ns, typical

    Load Square Wave
    Open Load 5 Vp-p, typical
    50 Ω Load 2.5 Vp-p, typical

    Square wave rise/fall time (10 to 90%)

    <1 ns, typical

    CLKIN Characteristics (PXI-6683 Only)

    CLKIN input frequency[3]

    10 MHz ±100 ppm, sine or square wave

    Input impedance

    50 Ω, nominal

    Voltage range

    400 mVp-p to 5 Vp-p

    Absolute maximum input voltage[4]

    6 Vp-p

    CLKIN to PXI_CLK10_IN delay

    11 ns, typical

    Jitter added to CLKIN

    1.3 psrms, 10 Hz to 100 kHz, typical

    Duty cycle distortion of CLKIN to PXI_CLK10_IN

    <1%, typical

    Required input duty cycle[5]

    45 to 55%

    PFI<0..2>

    Output Characteristics

    Frequency range

    DC to 50 MHz

    Output impedance

    50 Ω, nominal

    Output coupling

    DC

    Output voltage levels

    Output high

    1.2 V min, 1.6 V typical for 50 Ω load to ground

    2.6 V min, 3.3 V typical for 1 MΩ load

    Output low

    0.1 V max, 0 V typical for 50 Ω load to ground

    0.1 V max, 0V typical for 1 MΩ load

    Absolute maximum applied voltage[6]

    0 to 4.4 V

    Output-to-output skew, asynchronous PXI_Star to PFI routes[7]

    <400 ps, typical

    Output-to-output skew, other asynchronous routes

    <1.5 ns, typical

    Output-to-output skew, synchronous routes

    <2 ns, typical

    Synchronized trigger clock to out time, tco

    10 ns, max (relative to CLKOUT when configured to route PXI_CLK10)

    Output current

    ±48 mA, max

    Square wave rise/fall time (10 to 90%) for 50 Ω load

    <1 ns, typical

    Input Characteristics

    [8]

    Frequency range

    DC to 50 MHz

    Input impedance

    1kΩ, nominal

    Input coupling

    DC

    Nominal voltage level

    0 to +3.3 V, +5V tolerant

    Absolute maximum input voltage[9]

    -0.5 V to +6.0 V

    Input thresholds

    Voltage threshold high

    +2.3 V max

    Voltage threshold low

    +0.8 V min

    Asynchronous delay, tpd

    PFI<0..2> to PXI_TRIG<0..7> output

    17 to 20 ns, typical

    PFI<0..2> to PXI_STAR<0..12> output[10]

    12 ns, typical

    Synchronized trigger input setup time, tsetup

    25 ns, max (relative to CLKOUT when configured to route PXI_CLK10)

    Synchronized trigger input hold time, thold

    0 ns (relative to CLKOUT when configured to route PXI_CLK10)

    IRIG-B Input Characteristics (PFI0)

    IRIG-B AM compatibility

    IRIG-B 12X (200-04 standard)

    Maximum Input voltage range

    -5 V to +5 V

    Decode Input voltage range

    1.5 V to 10 V peak-peak mark (3:1 ration mark:space)

    Input carrier frequency

    1 kHz

    spd-note-caution
    Caution  

    Do not connect an IRIG-B AM signal to PFI 0 when the input is configured for digital operation, as this can result in damage of the digital input circuitry.

    IRIG-B DC compatibility

    IRIG-B 00X (200-04 standard)

    Input characteristics for IRIG-B DC

    same as PFI digital input characteristics listed above

    The following assumptions are made regarding the received IRIG-B signal. All conditions must be met for the PXI-6683 Series to be able to synchronize accurately:

    • Seconds begin every minute at 0, increment to 59, and then roll over to 0.
    • Minutes begin every hour at 0, increment to 59, and then roll over to 0.
    • Hours begin every day at 0, increment to 23, and then roll over to 0.
    • Days begin every year at 1. Days increment to 365 in non-leap years, or to 366 in leap years, and then roll-over to 1. Leap years must be supported. Valid values for year are 01 to 99, inclusive. Years are assumed to be in the XXI Century. For instance, year 09 represents 2009. If the year is not supplied (sent as 00), the OS system time is read and the year is derived from it.

    To achieve proper synchronization of the NI PXI-6683 Series ensure that the IRIG-B source used conforms to the requirements listed above. Note that most IRIG-B sources conform to these requirements.

    PXI Trigger Characteristics

    Output-to-output skew[11]

    <5 ns, typical

    Asynchronous delay, tpd

    PXI_Trig<0..7> to PFI<0..2>

    13 to 23 ns, typical

    PXI_Star Trigger Characteristics (PXI-6683)

    Output-to-output skew, PFI to PXI_Star Routes[12][13]

    <400 ps

    Output-to-output skew, synchronous triggers

    <2 ns, typical

    Asynchronous delays, tpt

    PXI_Star <0..12> to PFI<0..2> output

    8.5 ns, typical

    PXI_STar<0..12> to PXI_Trig<0..7> output

    10 to 18 ns, typical

    TCXO Characteristics

    Frequency

    10 MHz

    Initial accuracy

    ±1 ppm

    Temperature stability (0 to 55 °C)

    ±1 ppm

    Tuning range

    ±17.5 ppm minimum

    Aging per year

    ±1 ppm

    Duty cycle

    45 to 55%

    Timestamping and Time-Synchronized Clock Generation

    Time-synchronized clock period and duty cycle resolution

    10 ns

    spd-note-note
    Note  

    Clock signals generated on PFI, PXI_Star (PXI-6683 only), or PXI Trigger lines must have a period and duty cycle that is a multiple of 10 ns.

    Minimum pulse width for timestamping

    22 ns

    GPS Characteristics

    DC voltage output for antenna

    +5 V, ±5%

    Maximum output current

    60 mA

    Minimum current for antenna presence detection

    4.7 mA typical, 7.9 mA max

    Input impedance

    50 Ω, nominal

    GPS receiver type

    50 channels, GPS L1 frequency (1575.42 MHz), C/A Code

    Recommended signal strength at SMB connector

    -130 dBm

    Maximum RF power at input

    +3 dBm

    Accuracy

    PPS[14]

    15 ns

    Position[15][16]

    2.5 m CEP, 3.5 m SEP

    Velocity[17]

    0.1 m/s

    Maximum horizontal velocity

    310 m/s

    Maximum vertical velocity

    50 m/s

    Physical

    Chassis requirement

    One 3U CompactPCI or PXI slot (PXI the system timing slot for full functionality)

    Weight

    186 g

    Front panel connectors

    Six SMB male, 50 Ω; one standard RJ-45 Ethernet connector

    Front panel indicators

    Two tricolor LEDs (green, red, and amber) for GPS and IEEE 1588 status, and two green/amber LEDs for Ethernet link status and speed

    Recommended maximum cable lengths

    PFI, DC to 1.5 MHz

    200 m

    CLKOUT to CLKIN[18]

    200 m

    Ethernet CAT5

    100 m

    Power Requirements

    Voltage (V) Typical Maximum
    +3.3 V 740 mA 1.86 A
    +5 V 335 mA 1.14 A
    +12 V 54 mA 175 mA
    -12 V 24 mA 35 mA

    Synchronization Accuracy

    Test* Synchronization Performance
    GPS ±40 ns, <8 ns standard deviation
    IEEE 1588 3 m Ethernet direct connection ±25 ns, <4 ns standard deviation
    IEEE 1588 through a 1588 switch‡,** ±40 ns, <8 ns standard deviation
    IEEE 1588 through a hub‡,†† ±60 ns, <12 ns standard deviation
    IEEE 1588 through a switch‡,‡‡ ±25 µs, <150 ns standard deviation
    IRIG-B DC ±55 ns, <13 ns standard deviation
    IRIG-B AM matching***,††† ±1.15 µs, <260 ns standard deviation
    IRIG-B AM to source††† ±5 µs, <500 ns standard deviation
    PPS ±40 ns, <8 ns standard deviation

    *All synchronization performance figures are based on empirical results and represent typical behavior. All figures are obtained recording the offset between PPS signals generated by two PXI-6683 Series boards, inside a closed PXI chassis, configured to synchronize to the particular time reference, at ambient room temperature. Synchronization was performed for 15 minutes before PPS offset recording began. All test durations were at least 12 hours.

    For the GPS test, two PXI-6683 Series boards were independently synchronizing to GPS and configured to generate a PPS. the specification above represents typical empirical results. Please note that GPS satellites are only guaranteed to be withing 100 ns of UTC. Therefore, the offset between any two devices synchronizing can be as high as 200 ns plus the offset of that device to GPS.

    Sync interval of 1 second was used for IEEE 1588 tests, and all Ethernet connections were 1 Gbps unless otherwise specified.

    **Hirschmann MAR1040 Gb 1588 switch used

    ††Netgear DS104 Hub used with 100 Mbps links

    ‡‡Airlink 101 Gigabit over copper switch used. For this test, a moderate amount of non-1588 Ethernet traffic was present on the switch.

    ***IRIG-B AM matching specification was obtained by setting two PXI-6683 Series boards to synchronize independently to the same IRIG-B AM source and generate a PPS. the offset between their PPS signals was then measured over a 12 hour period.

    †††IRIG-B performance depends on IRIG-B source stability and quality.

    Environmental

    Operating Environment

    Ambient temperature range

    0 to 55 °C (tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.)

    Relative humidity range

    10% to 90%, noncondensing (Tested in accordance with IEC-60068-2-56.)

    Maximum altitude

    2,000 m (at 25 °C ambient temperature)

    Pollution Degree

    2

    Indoor use only.

    Storage Environment

    Ambient temperature range

    -40 to 70 °C (Tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.)

    Relative humidity range

    5% to 95% noncondensing (Tested in accordance with IEC-60068-2-56.)

    Shock and Vibration

    Operating Shock

    30 g peak, half-sine, 11 ms pulse (Tested in accordance with IEC-60068-2-27. Meets MIL-PRF-28800F Class 2 limits.)

    Random Vibration

    Operating

    5 to 500 Hz, 0.3 grms

    Nonoperating

    5 to 500 Hz, 2.4 grms (Tested in accordance with IEC-60068-2-64. Nonoperating test profile exceeds the requirements of MIL-PRF-28800F, Class 3.)

    Safety

    This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:

    • IEC 61010-1, EN 61010-1
    • UL 61010-1, CSA 61010-1
    spd-note-note
    Note  

    For UL and other safety certifications, refer to the product label or the Online Product Certification section.

    Electromagnetic Compatibility

    This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement, control, and laboratory use:

    • EN 61326 (IEC 61326): Class A emissions; Basic immunity
    • EN 55011 (CISPR 11): Group 1, Class A emissions
    • AS/NZS CISPR 11: Group 1, Class A emissions
    • FCC 47 CFR Part 15B: Class A emissions
    • ICES-001: Class A emissions
    spd-note-note
    Note  

    For the standards applied to assess the EMC of this product, refer to the Online Product Certification section.

    spd-note-note
    Note  

    For EMC compliance, operate this device with shielded cabling.

    CE Compliance

    This product meets the essential requirements of applicable European Directives as follows:

    • 2006/95/EC; Low-Voltage Directive (safety)
    • 2004/108/EC; Electromagnetic Compatibility Directive (EMC)

    Online Product Certification

    Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.

    Waste Electrical and Electronic Equipment (WEEE)

    spd-note-weee
    EU Customers  

    At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit ni.com/environment/weee.

    电子信息产品污染控制管理办法(中国RoHS)

    spd-note-china-rohs
    中国客户  

    National Instruments符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于National Instruments中国RoHS合规性信息,请登录 ni.com/environment/rohs_china。(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)

    • 1 When configured to route the on-board oscillator (TCXO) or PXI_CLK10, otherwise CLKOUT will be disabled (default).
    • 2 When configured to route the on-board oscillator (TCXO) or PXI_CLK10, otherwise CLKOUT will be disabled (default).
    • 3 This is a requirement of the PXI specification.
    • 4 Stresses beyond those listed can cause permanent damage to the device. Exposure to absolute maximum rated conditions for extended periods of time can affect device reliability. Funtional operation of the device outside the conditions indicated in the operations parts of the specification is not implied.
    • 5 This is a requirement of the PXI specification.
    • 6 Stresses beyond those listed can cause permanent damage to the device. Exposure to absolute maximum rated conditions for extended periods of time can affect device reliability. Functional operation of the device outside the conditions indicated in the operational parts of the specifications is not implied.
    • 7 Applies to asynchronous routes from a single PXI_Star input to multiple PFI outputs.
    • 8 For PFI 0 these characteristics apply when the line is configured as a digital input. They do not apply when configured as an IRIG-B AM input.
    • 9 Stresses beyond those listed can cause permanent damage to the device. Exposure to absolute maximum rated conditions for extended periods of time can affect device reliability. Functional operation of the device outside the conditions indicated in the operational parts of the specifications is not implied.
    • 10 The PXI-6683H does not have star trigger lines
    • 11 Measured at the PXI-6683 Series backplane connector.
    • 12 Measured at the PXI-6683 Series backplane connector.
    • 13 Applies to asynchronous routes from a single PFI input to multiple PXI_Star outputs.
    • 14 Compensating for quantization error
    • 15 All SV at -130 dBm
    • 16 24 hours static
    • 17 All SV at -130 dBm
    • 18 The PXI-6683H does not have a CLKIN connector.

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