TDT Series 3
Description
The TDT System 3 was introduced in the late 1990. It is a versatile and widely used data acquisition and processing system in the field of neurophysiology and electrophysiology research. It's a hardware and software platform designed for acquiring, processing, and analyzing neural signals.
Key features of the TDT System 3 include:
- High-Speed Data Acquisition: It is capable of recording neural signals, such as multi-channel electrophysiological data, at high sampling rates.
- Flexible Signal Processing: The system provides a range of signal processing capabilities, including filtering, spike sorting, and event detection.
- Integration with MATLAB: MATLAB compatibility is a notable feature, making it easier for researchers like yourself who use MATLAB for data analysis and programming.
- Customizable: Researchers can customize and expand the system with additional modules and accessories to suit their specific experimental needs.
- Multi-Channel Capability: It can handle multiple channels simultaneously, which is crucial for studying neural activity in various brain regions.
System 3 devices
RP2.1 Enhanced Real-Time Processor
The RP2.1 is a single core Digital Sound Processor. It can be programmed by the RPvdsEx programming interface. It can generate signals or play signals from memory as well as record signals.
- Sample rates: 6, 12, 25, 50, 100, 200 kHz.
- Analog I/O: 2 channels in, 2 channels out
- Digital I/O: 16 channels configurable
RA16 Medusa Base Station
The RA16 is a single core Digital Sound Processor that can be interfaced with a multichannel ADC preamplifier like the RA8GA or RA4PA.
- Analog Input: up to 8 channels with external preamp via optical link
- Analog output: stereo via 6.35mm jack
- Digital I/O: input 1 bit (trigger), output 16 bits
- Sampling rate: 48.828 kHz maximum
RA8GA Adjustable Gain Preamplifier
The RA8GA is a 8 channel ADC device with adjustable preamp. It must be connected to the optical link input of a medusa base station (RA16) or RZ6. The RA8GA has female Dsub25 connector for the analog inputs. It is meant to be used with the PP16 patch panel with BNC connectors.
| Specification | Value |
|---|---|
| A/D | 8-channels 16-bit PCM |
| Maximum Voltage In | Variable gain settings allow ±10 V, ±1 V, or ±100 mV |
| Frequency Response | DC - 7.5 kHz (2nd order 12 dB per octave) |
| S/N (typical) | 70 dB (±1 V @ 1 kHz) at ±1 V Gain Setting |
| THD (typical) | 0.01% |
| A/D Sample Rate | 6, 12, or 25 kHz |
| Cross Talk | <-70 dB (DC - Nyquist) |
| Input Impedance | 10 kOhm |
| Offset | <5 mV, ±10 V range <3 mV, ±1 V or ±100 mV range |
| Clip warning light | signal > -6 dB. |
| Build in low pass filter | Two-pole (12 dB per Octave) at 7.5 kHz. |
PA5 Progammable Attenuator
The PA5 Programmable Attenuator is a precision device for controlling signal levels over a wide dynamic range, providing 0 to 120 dB of attenuation for signals up to 100 kHz in frequency. The device is fully programmable; however, simple manual operation is also available using front panel controls.
When used in manual operation, the attenuation level is adjusted in two modes of operation:
- In Atten mode, the attenuation level of the signal can be adjusted from 0 to 120 dB in increments of 0.1 dB.
- UserAtt mode applies user-programmed parameters to adjust the attenuation level. Before using the UserAtt mode, attenuation parameters must be set up using the UserOps menu.
The PA5 Programmable Attenuator is powered via the System 3 zBus (ZB1PS). and requires an interface to the PC (Gigabit, Optibit, or USB)
| Specification | Value |
|---|---|
| Input Signal Range | ±10 V peak |
| Frequency Range | DC - 200 kHz |
| Attenuation Range | 0.0 to 120.0 dB |
| Attenuation Resolution | 0.1 dB |
| Attenuation Accuracy | 0.05 dB |
| Spectral Variation | <0.04 dB (20 Hz to 80 kHz) |
| Offset | <10 mV |
| Signal/Noise | 113 dB (20 Hz to 80 kHz at 9.9 V) |
| Noise Floor | 16 uVrms (20 Hz to 80 kHz) |
| THD | <0.003% (1 kHz tone ±7 V peak, 0 dB attenuation) |
| Attenuation Settling Time | 5 ms |
| Switching Transient | <8 mV (0 Hz to 80 kHz) |
| Input Impedance | 10 kOhm |
| Output Impedance | 10 Ohm |
SA1 Stereo Amplifier
The SA1 is a power amplifier for the zBus that delivers up to 3 watts of power to speakers. It has excellent channel separation combined with low noise and distortion. The frequency response is flat from 50 hertz to 200 kilohertz. Gain can be varied over a 27 dB range in 3 dB increments.
| Feature | Description |
|---|---|
| Product | SA1 Power Amplifier |
| Compatibility | zBus |
| Power Output | Up to 3 watts to speakers |
| Channel Separation | Excellent |
| Noise and Distortion | Low |
| Frequency Response | Flat from 50 Hz to 200 kHz |
| Gain Range | 27 dB range in 3 dB increments |
FO5 Fiber Optic Gigabit Zbus Interface
The Optibit system (Optical Gigabit) is designed for users that require high-speed real-time control of System 3 devices or precise system-wide device synchronization. The Optibit interface consists of a PCI card (PO5), PCIe card (PO5e), or PCI Cluster card (PO5c) that must be installed in the computer and one or more Optibit-to-zBus interface modules (FO5) that mount in the rear slot of a zBus device chassis or is built into RZ Processors. When using the Optibit interface, all devices are automatically phase locked to a single clock.
The table below includes typical transfer rates (in MB/s) for the Optibit and USB interfaces at a 50% cycle usage with RP/RX and RZ devices.
| Interface | Transfer Type | RP | RX | RZ |
|---|---|---|---|---|
| PO5/PO5e/FO5 | Read | 1.5 | 4.0 | 8.0 |
| PO5/PO5e/FO5 | Write | 1.0 | 1.0 | 8.0 |
| UZ3 | Read | NS | NS | 6.0 * |
| UZ3 | Write | NS | NS | 6.0 * |
| UZ2 | Read | 1.5 | 1.5 | NS |
| UZ2 | Write | 1.0 | 1.0 | NS |
* UZ3 transfer rates are highly dependent on the specs of the computer
PO5e Fiber Optic Gigabit Computer Interface
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PM2 Multiplexer
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MS2 Monitor Speaker
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ZBus for System 3
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PS25F power supply
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