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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