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July 2025
PCI-6561 Request for Availability
PCI-6561, 16 Data Channels, 100 MHz Frequency, Digital Waveform Generator
Rated 4.5/5 | 5 ratings
Actual item may vary if no part number is provided on quote request.
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments PCI-6561 Digital Waveform Generator
The PCI-6561 (Part Numbers: 778991-01, 778991-02, and 778991-03) is a 100 MHz Digital Waveform Generator from National Instruments. This model comes equipped with 16 built-in data channels. The PCI-6561 has synchronization capabilities, which enables the analysis capability by interfacing 16 low-voltage differential signaling digital pins. There are also generation and acquisition channels for help with fulfilling various testing and analysis procedures for R&D requirements. Various sources of generation are provided for the sample clock, including: On Board clock, CLK IN, and STROBE mechanism. The on-board clock is generated through an internal voltage-controlled crystal oscillator and comes with a divider. The device is equipped with 3 SMB jack and a 12X InfiniBand I/o connector.
The NI PCI-6561 Waveform Generator has different frequency ranges for different sources. The range is 48 Hz to 100 MHz for the On-Board clock source. The input frequency range from CLK IN terminal is 20 kHz to 100 MHz. The STROBE option comes with the frequency range of 48 Hz to 100 MHz. These CLK sources offer a resolution of 10 ps. This model also has a typical lock time of 400 milliseconds. The frequency range for the reference clock is 10 MHz ± 50 ppm and the duty cycle range is 25 % to 75 %. The PCI-6561 is run using the NI-HSDIO driver software which is compatible with software packages/application development environments such as LabVIEW, LabWindows/CVI, Measurement Studio, Microsoft Visual C/C++, and .NET. The device hardware can be configured using the Measurement & Automation Explorer (MAX) tool.
The NI PCI-6561 offers various trigger modes to further enhance the operational capabilities of the instrument. This model has a typical warm time of fifteen minutes. It also offers an exceptional accuracy for frequency measurements, with a typical value of ± 100 ppm. The Digital Waveform Generator weighs around 410 grams and has physical dimensions of 4.96 x 13.9 inches. It has a recommended operating temperature range of 0 °C to 45 °C, and a storage temperature range of -20 °C to 70 °C.
The PCI-6561 is available for both purchase and repairs with Apex Waves! While the Digital Waveform Generator is no longer available with National Instruments (NI), it will remain available in perpetuity with us.
| Model | PCI-6561 |
|---|---|
| Manufacturer | National Instruments |
| Part Numbers | 778991-01, 778991-02, and 778991-03 |
| Series | NI-656x Series |
| Type | Digital Waveform Generator |
| Channels | 16 |
| STROBE Frequency Range | 48 Hz to 100 MHz |
| Memory | 2, 16, or 128 Mbit/channel |
| Total Power | 16.5 W Max |
| I/O Connectors | SMB Jack Connector, 12X InfiniBand Connector |
| Operating Temperature Range | 0 °C to 45 °C |
| Storage Temperature Range | -20 °C to 70 °C |
| Dimensions | 4.96 × 13.9 in. |
| Weight | 14.5 oz. |
| Warranty | Three Year Warranty |
| PCI-6561 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PCI-6561:
National Instruments PCI-6561 Frequently Asked Questions
Question: At what rate can the PCI-6561 sample digital waveforms?
Answer: The PCI-6561 can sample digital waveforms at up to 100 MHz.
Question: Does the PCI 6561 provide LVDS signaling?
Answer: Yes, the PCI 6561 provides LVDA signaling.
Question: How is data clocked when using the NI PCI-6561?
Answer: When using the NI PCI-6561, data is clocked using the rising or falling edge of the sample clock while using SDR. Using DDR, data is clocked using both edges of the sample clock.
Question: What is the output protection per channel on the NI PCI-6561?
Answer: The output protection per channel on the NI PCI-6561 is 0 V to 5 V, with an indefinite duration.
| Accessory Type | Model Name | Part Number |
|---|---|---|
| Cable | SHB12X-B12X (Shielded) | 192344-01 (1 m) |
| 192344-02 (2 m) | ||
| SHB12X-H3X24 (Shielded, Flying Lead) | 196236-1R5 (1.5 m) |
PCI-6561 PDF Manuals
MAINTAIN-FORCED-AIR-COOLING-NOTE-TO-USERS.PDF
NI-HIGH-SPEED-DIGITAL-WAVEFORM-GENERATOR-ANALYZER-GETTING-STARTED-GUIDE.PDF
Driver Downloads for PCI-6561
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