TIME TO DIGITAL CONVERTERS

TDC-GPX2 High Performance Time-to-Digital Converter

The TDC-GPX2 is an upgraded version of the TDC-GPX. It is more powerful, has a lower cost and smaller package than the TDC-GPX. The TDC-GPX2 is an integrated four-channel Time-to-Digital converter offering single-measurement resolution of up to 20psRMS per channel in normal 4 channel mode. Operating in dual-channel high resolution mode, it can achieve a maximum resolution of 10psRMS with 5ns pulse-to-pulse spacing. The superior performance of the TDC-GPX2 has been achieved without sacrificing power efficiency. The GPX2 uses between 60mW and 450mW in normal operation depending on the number of channels and update rate, and draws just 60µA in stand-by mode.

TDC-GPX2 Time-to-Digital Converter

Time to Digital Converters

The ScioSense TDC-GPX2 is easy to implement in end-product designs, providing standard interfaces and requires few external components. The chip also includes a driver for a quartz reference clock, which can be used for automatic calibration as an alternative to the reference clock input.

An evaluation kit is available for the TDC-GPX2, which includes a programmer and GUI software for PCs that enables customers to configure and connect their Start and Stop signals reducing the time to getting to taking sample time measurements.

ScioSense is already a leader in the LIDAR, laser scanner and 3D LIDAR market with the TDC-GPX for high precision ranging applications. The GPX2 provides even higher resolution, better precision and higher update rate that allow customers to develop systems with even higher detail and accuracy.

The TDC-GPX2 is a great upgrade from competitive technologies including the obsolete Texas Instruments (TI) THS789 Quad-Channel Time Measurement Unit (TMU).

TDC-GPX2 Applications

TDC-GPX2 LIDAR FOR AUTONOMOUS VEHICLES

Applications like LIDAR, laser scanning devices and 3D LIDAR used in autonomous vehicle applications require very high performance to acquire the data, process the data and

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get it to the control system in sufficient time to make decisions for vehicle control and to avoid objects which have come into the vehicle’s path. The devices need to be small, light-weight and cost effective in order to be used in high volume applications.

The high-end TDC-GPX2 offers high resolution, 10ps, high update rate to the outside world (up to 70 mega-samples per second) using the low voltage differential signaling interface (LVDS), and it has very low power consumption in operation. All this performance is available in a small 9mm by 9mm QFN64 package. These features make it ideal for use in autonomous vehicles and it is already finding applications in this market segment today.

The ability to measure short time intervals with high resolution and fast update rate enable LIDAR and laser scanning devices that are fast enough and accurate enough to be used in complex collision avoidance navigational systems found in autonomous drones, cars, robots and trucks. The GPX2 enables

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systems to have more detailed data and very accurate range measurements.

ScioSense is already a leader in the LIDAR, laser scanner and 3D LIDAR market with the TDC-GPX for high precision ranging applications. The GPX2 provides even higher resolution, better precision and higher update rate that allow customers to develop systems with even higher detail and accuracy.

TDC-GPX2 LIDAR FOR DRONES

Applications like LIDAR used in drone applications require very high performance to acquire the data, process the data and get it to the control system in sufficient time to make decisions for drone control so that the drone can avoid objects which have come into its path.

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The devices need to be small, light-weight and cost effective to be used in high volume applications. In addition to collision avoidance, there are mapping applications that require laser scanners, which again must have high resolution, fast acquisition, and must be light-weight.

The TDC-GPX2 offers high resolution, 10ps, high update rate to the outside world (up to 70 mega-samples per second) using the low voltage differential signaling interface (LVDS), and it has very low power consumption in operation. All this performance is available in a small 9mm by 9mm QFN64 package. These features make it ideal for use in drones and it is already finding applications in this market segment today.

The ability to measure short time intervals with high resolution and fast update rate enable LIDAR and laser scanning devices that are fast enough and accurate enough to be used in complex collision avoidance navigational systems found in drones as well as laser terrain mapping applications. The GPX2 enables systems to have more detailed data and very accurate range measurements.

ScioSense is already a leader in the LIDAR, laser scanner and 3D LIDAR market with the TDC-GPX for high precision ranging applications. The GPX2 provides even higher resolution, better precision and higher update rate that allow customers to develop systems with even higher detail and accuracy.

TDC-GPX2 TDC-GPX2 LIDAR FOR VIRTUAL REALITY APPLICATIONS

Applications like LIDAR and Laser Scanners used in virtual reality applications require very high performance to acquire the data, process the data and get it to the control system in sufficient time to make decisions of where you are in relation with objects in the environment so you can avoid objects which are in the way. The devices need to be small, light-weight and cost effective to be used in high volume applications. In addition to collision avoidance with the environment, the information can be used to map the room environment such that

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the VR can take advantage of overlaying virtual objects over physical objects.

The TDC-GPX2 offers high resolution, 10ps, high update rate to the outside world (up to 70 mega-samples per second) using the low voltage differential signaling interface (LVDS), and it has very low power consumption in operation. All this performance is available in a small 9mm by 9mm QFN64 package. These features make it ideal for use in Virtual Reality applications.

The ability to measure short time intervals with high resolution and fast update rate enable LIDAR and laser scanning devices that are fast enough and accurate enough to be used in complex collision avoidance systems with environmental mapping for Virtual Reality. The GPX2 enables systems to have more detailed data and very accurate range measurements.

ScioSense is already a leader in the LIDAR, laser scanner and 3D LIDAR market with the TDC-GPX for high precision ranging applications. The GPX2 provides even higher resolution, better precision and higher update rate that allow customers to develop systems with even higher detail and accuracy.

TDC-GPX2 LIDAR and 3D LIDAR

LIDAR and 3D LIDAR require very high performance to acquire the data, process the data and deliver it to the data acquisition system for making decisions like ranging and mapping. The devices need to be small, light-weight and cost effective to be used in high volume applications. The LIDAR and 3D LIDAR systems can be used in many applications like collision avoidance, aerial terrain mapping and terrestrial mapping

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The TDC-GPX2 device offers high resolution, 10ps, high update rate to the outside world (up to 70 mega-samples per second) using the low voltage differential signaling interface (LVDS), and it has very low power consumption in operation. All this performance is available in a small 9mm by 9mm QFN64 package. These features make it ideal for use in high performance LIDAR applications.

The ability to measure short time intervals with high resolution and fast update rate enable LIDAR and laser scanning devices that are fast enough and accurate enough to be used in complex collision avoidance systems with environmental mapping for VR. The GPX2 enables systems to have more detailed data and very accurate range measurements.

ScioSense is already a leader in the LIDAR, laser scanner and 3D LIDAR market with the TDC-GPX for high precision ranging applications. The GPX2 provides even higher resolution, better precision and higher update rate that allow customers to develop systems with even higher detail and accuracy.

For more information, please contact PMT atsales@pmt-fl.comor call us at 727-532-6144.
The TDC-GPX2 is a great upgrade from competitive technologies including the obsolete Texas Instruments (TI) THS789 Quad-Channel Time Measurement Unit (TMU).

Feature Comparison Between GPX and GPX2

GPX GPX2
Number of channels 2 or 8 2 or 4
Resolution @ max number of channels 81pS 10pS
Inputs TTL or LVPECL LVDS
Max Start Retrigger Frequency 7 MHz 12 MHz
Data Output Parallel Bus Serial High-Speed LVDS or SPI
Data Output Speed 40 MHz 600 MHz (LVDS DDR)
Channel Data is Output Serially: Channel 1 to 8 All 4 Channels in Parallel
FIFO (Each Channel) 32 Stage 16 Stage
Calibration Resolution Adjust Mode Reference Measurement
Double Pulse Resolution on Same Channel 5.5nS 4nS or 1nS (2 Channel Mode)
Start Retrigger Number 8 Bits Configurable up to 24 bits
Time Stamp 16 Bits Configurable up to 24 bits
Package TQFP100, TFBGA120 QFN64

Documentation & Downloads

Software

Description

Software TDC-GPX2:
Evaluation software package for GPX2 (incl. doc, cfg, drv)

Version

V1.0.5

Size

206MB

Download

precision-measurement-tdc-gpx2-evalsw-v1-0-5-0.zip

Description

Software TDC-GP22:
STM32 µC Sample code of Application Note 034

Version

 

Size

42kB

Download

GP22_main_AN034.c

Description

Software TDC-GP22:
Software package for GP22-EVA-KIT

Version

V1.9

Size

111MB

Download

CD-GP22-EVA-XP-WIN7.zip

Description

Software TDC-GP21:
Software package for GP21-EVA-KIT

Version

V3.9

Size

104MB

Download

CD-GP21-EVA-XP-WIN7.zip

Description

Software TDC-GPX:
Evaluation software for ATMD-GPX

Version

V4.0

Size

18MB

Download

ATMD-GPX.zip

Description

Software TDC-GPX:
Visual-C++ sample code for ATMD-GPX

Version

 

Size

214kB

Download

ATMD-GPX-C-samples.zip

Description

Software ATMD-PCI:
Driver files for ATMD-PCI interface card

Version

 

Size

2kB

Download

AcamAtmdPci.zip

Description

Software PICOPROG V3.0 (V2.0):
Driver Installer Stand-Alone

Version

R11

Size

5MB

Download

PicoProg_v2_Driver_Installer_Stand-Alone.zip

Description

Software National Instruments:
NI VISA runtime engine for Windows XP

Version

V3.2

Size

14MB

Download

ni-visa.zip

Description

Software National Instruments:
NI VISA runtime engine for Windows XP

Version

V3.2

Size

14MB

Download

ni-visa.zip

Description

Software National Instruments:
NI VISA runtime engine for Windows 7

Version

V4.62

Size

53MB

Download

visa462runtime.exe

Description

Software National Instruments:
NI VISA runtime engine for Windows Vista

Version

V4.1

Size

41MB

Download

visa410full.exe

Description

Software National Instruments:
NI VISA runtime engine for Windows XP

Version

V3.2

Size

14MB

Download

visa320runtime.exe

Description

Software National Instruments:
NI VISA runtime engine for Windows 98

Version

V2.6

Size

8MB

Download

visa260runtime.exe

 

Software

Description

Software TDC-GPX2:
Evaluation software package for GPX2 (incl. doc, cfg, drv)

Version

V1.0.5

Size

206MB

Download

precision-measurement-tdc-gpx2-evalsw-v1-0-5-0.zip

Description

Software TDC-GP22:
STM32 µC Sample code of Application Note 034

Version

 

Size

42kB

Download

GP22_main_AN034.c

Description

Software TDC-GP22:
Software package for GP22-EVA-KIT

Version

V1.9

Size

111MB

Download

CD-GP22-EVA-XP-WIN7.zip

Description

Software TDC-GP21:
Software package for GP21-EVA-KIT

Version

V3.9

Size

104MB

Download

CD-GP21-EVA-XP-WIN7.zip

Description

Software TDC-GPX:
Evaluation software for ATMD-GPX

Version

V4.0

Size

18MB

Download

ATMD-GPX.zip

Description

Software TDC-GPX:
Visual-C++ sample code for ATMD-GPX

Version

 

Size

214kB

Download

ATMD-GPX-C-samples.zip

Description

Software ATMD-PCI:
Driver files for ATMD-PCI interface card

Version

 

Size

2kB

Download

AcamAtmdPci.zip

Description

Software PICOPROG V3.0 (V2.0):
Driver Installer Stand-Alone

Version

R11

Size

5MB

Download

PicoProg_v2_Driver_Installer_Stand-Alone.zip

Description

Software National Instruments:
NI VISA runtime engine for Windows XP

Version

V3.2

Size

14MB

Download

ni-visa.zip

Description

Software National Instruments:
NI VISA runtime engine for Windows XP

Version

V3.2

Size

14MB

Download

ni-visa.zip

Description

Software National Instruments:
NI VISA runtime engine for Windows 7

Version

V4.62

Size

53MB

Download

visa462runtime.exe

Description

Software National Instruments:
NI VISA runtime engine for Windows Vista

Version

V4.1

Size

41MB

Download

visa410full.exe

Description

Software National Instruments:
NI VISA runtime engine for Windows XP

Version

V3.2

Size

14MB

Download

visa320runtime.exe

Description

Software National Instruments:
NI VISA runtime engine for Windows 98

Version

V2.6

Size

8MB

Download

visa260runtime.exe

 

Ordering Numbers

TDC-GP22:
TDC-GP22 MNR 1949 QFN32 Yes Tray
TDC-GP22 MNR 1950 QFN32 Yes Tape & Reel (5k)
GP22-EVA-KIT MNR 1951 System Yes Box
GP22-DEMO-KIT MNR 1979 System Yes Box
TDC-GP21:
TDC-GP21 MNR 1839 QFN32 Yes Tray
TDC-GP21 MNR 1720 QFN32 Yes Tape & Reel (3K/5K)
GP21-EVA-KIT MNR 1781 System Yes Box
TDC-GP2:
TDC-GP2 MNR 1058 QFN32 Yes Tray
TDC-GP2 MNR 1480 QFN32 Yes Tape & Reel (2k)

TDC-GP1:

TDC-GP1 MNR 278 TQFP44 Yes Tray

TDC-GPX:

TDC-GPX MNR 975 TQFP100 Yes Tray
TDC-GPX-FG MNR 1089 TFBGA120 Yes Tray