PXI-9820
PXI-9820
2-CH 65 MS/s 14-Bit Digitizer with SDRAM
Features
PXI specifications Rev. 2.1 compliant
3U Eurocard form factor, CompactPCI compliant (PICMG 2.0 R3.0)
14-bit A/D resolution
Up to 60 MS/s sampling rate per channel with internal timebase
Up to 65 MS/s sampling rate per channel with external timebase
Up to 130 MS/s sampling rate in "ping pong" mode
2-CH single-ended bipolar inputs
>30 MHz -3 dB bandwidth
Up to 512 MB onboard SODIMM SDRAM
Programmable ranges of ±1 V and ±5 V
User-configurable input impedance of 50 Ω or high input impedance
Scatter-gather DMA
Analog and digital triggering
2-CH synchronous digital inputs
Fully auto calibration
Multiple modules synchronization through PXI trigger bus
Operating Systems
Windows Vista/XP/2000/2003
Linux
Windows CE (call for availability)
Driver Support
DAQPilot for Windows
DAQ-LVIEW PnP for LabVIEW™
DAQ-MTLB for MATLAB®
WD-DASK for Linux
WD-DASK/X for Windows
Recommended Software
VB.NET/VC.NET/VB/VC++/BCB/Delphi
DAQBench
Introduction
ADLINK PXI-9820 is a 65 MS/s, high-resolution PXI
digitizer with deep SODIMM SDRAM memory. The
device features flexible input configurations, including
programmable input ranges and user-configurable input
impedance. With the deep onboard acquisition memory,
the PXI-9820 is not limited by the 132 MB/s bandwidth
of PCI bus and can record the waveform for a long
period of time. The PXI-9820 is ideal for high-speed
waveform capturing, such as radar and ultrasound
applications, as well as software radio applications, or
those signal digitizing applications which need deep
memory for data storage.
Analog Input
The PXI-9820 device features two analog input
channels. The small signal bandwidth of each channel
exceeds 30 MHz. The input ranges are programmable
as either ±5 V or ±1 V. The 14-bit A/D resolution makes
the PXI-9820 ideal both for time-domain and frequencydomain applications.
Acquisition System
ADLINK PXI-9820 device uses a pair of 65 MS/s, 14-bit
pipeline ADCs to digitize the input signals, and the
device provides an internal 60 MHz timebase for data
acquisition. The maximum real-time sampling rate is 60
MS/s with internal timebase, and is up to 65 MS/s with
external timebase. By using the "ping pong" mode, the
sampling rate is up to 120 MS/s with internal timebase
or 130 MS/s with external timebase.
Acquisition Memory
The PXI-9820 device supports different size of
SODIMM SDRAM ranging from 128 MB to 512 MB.
External Digital
Trigger and
Clock Input
AI0 Analog
Circuitry
Triggering
Thanks to PXI versatile trigger functions, the PXI-9820
device features flexible triggering functionalities, such
as analog and digital triggering. The analog trigger
features programmable trigger thresholds on rising or
falling edges on both input channels. The 5 V/TTL
digital trigger comes from PXI trigger bus or the
external SMB connector for synchronizing multiple
devices.
Post-trigger, pre-trigger, delay-trigger and middletrigger modes are available to acquire data around the
trigger event. The PXI-9820 also features repeated
trigger acquisition, so you can acquire data in multiple
segments coming with successive trigger events at
extremely short rearming interval.
Multiple-Instrument Synchronization
The PXI-9820 implements star trigger and trigger
bus to route timing and trigger signals between one
or more PXI-9820 and other PXI modules. These
interfaces allow users to synchronize multiple PXI
modules into a system easily. Timebase is also
selectable. Users could choose using internal clock
or the output of the onboard PLL with the reference
clock from external clock input or PXI 10 MHz
reference clock.
Synchronous Digital Inputs
SDI (synchronous digital input) is the digital input
synchronously sampled with analog input. The digital
inputs are latched right with the clock edge while the
analog signals are sampled, and the digital input
combining the 14-bit analog data are stored into
SDRAM. This functions is ideal for mixed signal
acquisition.
SDI (1-bit)
Digital
16-bit
Register
Mixed Data
Out-of-range
Indicator (1-bit)
Analog
ADC
Converted Data
(14-bit)
Calibration
The auto-calibration function of the PXI-9820 is
performed with trim DACs to calibrate the offset and
gain errors of the analog input channels. Once the
calibration process is done, the calibration constant will
be stored in EEPROM such that these values can be
loaded and used as needed by the board. Because all
the calibration is conducted automatically by software
commands, users don't have to adjust trimpots to
calibrate the modules manually.
PXI 10 MHz Reference Clock
PGA
PLL
External 10 MHz
AI CH
AD
Converter
AD
Converter
PCI
Controller
3-4
PXI Trigger Bus
www.adlinktech.com
CLK IN
FPGA
Logic
SDRAM
AI1 Analog
Circuitry
Clock
Generation
The digitized data are stored in the onboard SDRAM
before being transferred to the host memory. The PXI9820 device uses the scatter-gather bus-mastering
DMA to move data to the host memory. If the data
throughput from the PXI-9820 is less than the available
PCI bus bandwidth, the PXI-9820 also features onboard 3 k-sample FIFO to achieve real-time transfer
bypassing the SDRAM, directly to the host memory.
External Clock Input
Trigger Bus
Star Trigger
MUX
Timebase
Voltage
Reference
Trim ADC
PXI High-Speed Digitizer
1
Specifications
Analog Input
Number of channels: 2 simultaneous-sampled
single-ended
Resolution: 14 bits
Maximum sampling rate
65 MS/s for 2 inputs
130 MS/s for Ping-Pong mode
Onboard sample memory
128 MB, standard
up to 512 MB, optional
Bandwidth (-3 dB): 30 MHz minimum
Input signal ranges: (software programmable)
±5 V, ±1 V
Input Coupling: DC
Overvoltage protection
Range
±5V
±1V
Overvoltage protection
± 14 V
±5V
Input Impedance (soldering selectable):
50 Ω, 1.5 MΩ
Crosstalk: < -80 dB, DC to 1 MHz
Total harmonic distortion (THD): -75 dB
Signal-to-Noise ratio (SNR)
Range
±5V
±1V
SNR
66 dB
62 dB
Spurious-free dynamic range (SFDR): 75 dB
Data transfer:
bus-mastering DMA with scatter-gather
Auto Calibration
Onboard reference: +5 V
Temperature drift: 2 ppm/˚C
Stability: 6 ppm/1000 Hrs
External Timebase Input
Selectable as 10 MHz input for PLL or direct external
timebase input
Connector: SMB
Impedance: 50 Ω
Coupling: AC
Input amplitude: 1 Vpp to 2 Vpp
Overvoltage protection: 2.5 Vpp
Frequency range: 500 kHz - 65 MHz
Triggering
Analog triggering
Modes:
pre-trigger, post-trigger, middle-trigger,
delay-trigger
Source: CH0 and CH1
Slope: rising/falling
Coupling: DC
Trigger sensitivity:
256 steps in full-scale voltage range
Digital triggering
Modes:
pre-trigger, post-trigger, middle-trigger,
delay-trigger
Source: external digital trigger from SMB
Slope: rising/falling
Compatibility: 5 V/TTL
Minimum pulse width: 10 ns
Repeated trigger rearming interval:
2 cycles of timebase
Pre-trigger depth:
128 MB or 512 MB, depending on memory option
Post-trigger depth:
128 MB or 512 MB, depending on memory option
Synchronous Digital Input
Number of channels: 2
Compatibility: 5 V/TTL
Data transer: bus-mastering DMA with
scatter/gather
General Specifications
I/O connector
BNC x 2 for analog inputs
SMB x 4 for external digital trigger, external time
base, and synchronous digital inputs
Operating temperature: 0 to 50˚C
Storage temperature: -20 to 80˚C
Relative humidity: 5 to 95%, non-condensing
Power requirements
Power Rail
5V
12 V
3.3 V
Current
900 mA typical
305 mA typical
360 mA typical (with 128 MB SDRAM)
500 mA typical (with 512 MB SDRAM)
Dimensions (not including connectors)
160 mm x 100 mm
Certificate
EMC/EMI: CE, FCC Class A
Accessories
SMB-SMB-1M
1-meter SMB to SMB cable
SMB-BNC-1M
1-meter SMB to BNC cable
Software
Solutions
2
CLK IN
TRG IO
SDI0
SDI1
PXI/
CompactPCI
Platforms
3
CH0
Modular
Instrument
CH1
4
PXI/
CompactPCI
Modules
Ordering Information
PXI-9820D/128
2-CH 65 MS/s 14-Bit Digitizer with 128 MB
Memory
PXI-9820D/512
2-CH 65 MS/s 14-Bit Digitizer with 512 MB
Memory
5
Bus
Interface
6
GPIB
Interface
7
PCI/PCI
®
Express
DAQ Cards
8
PCI/PCI
®
Express
DIO Cards
9
PC/104-Plus
Modules
10
ISA DAS/
DIO Cards
SMB-SMB-1M
11
System
Product
12
Wiring
Termination
Boards
SMB-BNC-1M
13
Motion, HSL,
Vision, COM
& GEME
14
Remote I/O
Modules
15
Industrial
Computers
www.adlinktech.com 3-5
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