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PDA14 - 100 MHz Data Acquisition Signal Waveform Digitizer PCI DAQ Board
complete PDA14 Data Sheet,
Operator's Manual, & Software
for your evaluation
| FEATURES |
|
Product Overview
The PDA14 is a dual channel waveform digitizer capture board which provides a tremendous combination of high speed and high resolution along with an extremely large memory capacity. The entire 512 MB memory may be used as a giant FIFO for acquiring data directly to either the SAB or PCI bus. Tests have shown that a very large FIFO memory is required to prevent data loss when performing continuous data streaming over the PCI bus.
The PDA14 is a 64-bit PCI compatible DAQ board equipped with standard 'Plug and Play' features common in PCI systems. This data acquisition board is capable of Bus Master DMA data transfers at up to a peak of 266 megabytes/second and a sustained rate of 250 megabytes/second. It can also operate in 32-bit PCI slots in which case the transfer rate will be limited to about 125 megabytes per second.
The PDA14 digitizer board incorporates the advanced Signatec Auxiliary Bus (SAB) that allows for data transfers of up to 500 megabytes/second. This allows for the high-speed transfer of data to fast processor boards, such as Signatec's PMP1000, or other peripherals. The SAB also incorporates device control features for operating the PDA14 independent of the host PC bus.
The PDA14 is equipped with an interconnect port to allow multiple PDA14 DAQ boards to be interconnected in a Master/Slave configuration. Up to three PDA14 Slave DAQ boards may be operated with one Master. Master/Slave connections are via a ribbon cable that connects at the top of the board. In this configuration the clock and trigger signals from the Master drive the Slave boards so that data sampling on all boards occurs simultaneously.
The PDA14 has six software selectable signal amplitude ranges from a maximum of 3.0 volts down to 200 millivolts full scale.
External clock and trigger signals are provided via SMA connectors on the back bracket. Also provided is a user selectable digital output signal for synchronization purposes. Effectively, twenty-two internal clock frequencies may be selected, from 100 MHz down to 97.7 kHz in factors of 2 or from 62.5 MHz down 61.0 kHz in factors of 2. The PDA14 supports single shot, segmented, and pretrigger triggering modes.
Product Specifications
| External Signal Connections (SMA) | |
| Analog Input, Channel 1 | |
| Analog Input, Channel 2 | |
| Clock Input | |
| Trigger Input | |
| Digital Output | 3 SMA |
| Analog Input | |
| Full Scale Voltage Ranges: | 200mV, 333mV, 600mV, 1.00V, 1.66V, 3.00V |
| Impedance: | 50 ohms |
| Bandwidth: | 50 MHz |
| Equivalent Noise: | 0.5 lsb RMS (typical) |
| Coupling: | AC or DC |
| External Trigger | |
| Impedance: | 1k ohms |
| Trigger Level: | +/- 1.75 Volts |
| Adjustment Method: | via 12 bit DAC |
| Bandwidth: | 50 MHz |
| Coupling: | DC |
| External Clock | |
| Signal Type: | sine or square wave |
| Coupling: | AC |
| Impedance: | 50 ohms |
| Frequency: | 30 MHz to 100 MHz |
| Amplitude: | 100 mV p-p to 2.0 V p-p |
| Digital Output | |
| Type: | TTL Logic Level |
| Max. Frequency: | 100 MHz |
| Suggested Load: | 1k ohms/td> |
| Amplitude: | TTL |
| DC Offset Voltage | |
| Resolution: | 12 bit DAC |
| Range: | +/- 1.1 x FS ADC input |
| Trigger Modes | |
| Post-Trigger: | single start trigger fills active memory |
| Pre-Trigger: | single trigger stops acquisition |
| Segmented: | start trigger for each memory segment |
| Digitizer | |
| Voltage Range: | 2.0V p-p full scale |
| Resolution: | 14 bits |
| Linearity, Integral: | +/- 0.5 lsb max. |
| Linearity, Differential: | +/- 0.75 lsb max. |
| Aperture Jitter: | <0.5 pS typical |
| Internal Clock | |
| Available Rates: | 100 MHz down to 97.6 kHz in factors of 2 62.5 MHz down to 61.0 kHz in factors of 2 |
| Accuracy: | +/- 0.01% |
| Trigger Modes | |
| Post Trigger: | single start trigger fills active memory |
| Pre-Trigger: | single trigger stops acquisition |
| Segmented: | start trigger for each memory segment |
| Trigger Options | |
| Pre-Trigger Samples: | samples prior to trigger are stored; Single Channel: 8k max.; Dual Channel: 4k max per channel |
| Delayed Trigger: | delay from trigger to data storage; Up to 64k digitizer clock cycles |
| Memory | |
| Active Size: | Up to 256 Megasamples |
| Segment Size: | Up to 128 Megasamples |
| Start Address Setting: | Anywhere in memory |
| Segment Re-Arm Time: | 150 nanoseconds |
| Addressing: | DMA transfers from starting address |
| Memory Address (PC): | Plug and Play selected |
| I/O Addressing | |
| PCI Controller Address: | 64 bytes, Plug and Play selected |
| Control/Status Registers: | 32 bytes, Plug and Play selected |
| Signatec Auxiliary Bus | |
| Data Transfer Modes: | Block or Packet |
| Data Transfer Rates: | 500 MB/s max @ 64 bits |
| Data Direction: | Output only |
| Power Down Features | |
| Off Mode: | Board Deactivated; Power usage less than 350 mW |
| Power Down: | Acquisition circuits deactivated; power reduced by 2/3 |
| Thermal Shutdown: | ADC temp. greater than 65C deactivates power |
| Absolute Maximum Ratings | |
| Trigger Input: | +/- 5 volts |
| Trigger Input: | +/- 5 volts |
| Trigger Input: | +/- 5 volts |
| Power Requirements | |
| +12V: | 400mAmps max. |
| +5V: | 1.5 Amps max. |
| +3.3Vt: | 2.3 Amps max. |
| Ambient Temperature: | 0 to 50C |