Datasheet TDC-GPX2 (AustriaMicroSystems) - 10

TDC-GPX2 −
Conver ter Characteristics General Conditions: VDD33 = 3.3V; VDD18 = 1.8V;
Converter Characteristics
TA = 0°C to 80°C.
Figure 9: Converter Characteristics Symbol Description Condition TL Min Typ Max Unit Accuracy of Time Measurement
High_Resolution = 0 (off ) 20 30 Single-shot RMS RMS High_Resolution = 1 (2x) IV 15 20 ps resolution High_Resolution = 2 (4x) 10 15 INL Integral non-linearity IV 20 ps Differential DNL V 5 ps non-linearity No missing code At time quantization level III Assured Channel to channel At same times measured IV 20 100 ps isolation High_Resolution = 0 (off ) 100 Offset error High_Resolution = 1 (2x) V 150 ps High_Resolution = 2 (4x) 200 High_Resolution = 0 (off ) 0.5 Offset error High_Resolution = 1 (2x) IV 1 3 ps/K temperature drift High_Resolution = 2 (4x) 1.5
Switching Performance
High_Resolution = 0 (off ) 20 tCONV Converter latency High_Resolution = 1 (2x) III 50 ns High_Resolution = 2 (4x) 100 High_Resolution = 0 (off ) 50 Peak conversion rate High_Resolution = 1 (2x) III 20 MSPS High_Resolution = 2 (4x) 10 Maximum read-out rate SDR / 250MHz 5.6 17.8 LVDS: 44 Bit/14 Bit DDR / 250MHz III 11.3 35.7 MSPS SPI: Opcode + 48 Bit/16 Bit SPI / 50MHz 0.9 2.1
Page 10 ams Datasheet
Document Feedback [v1-03] 2017-Dec-18 Document Outline General Description Key Benefits & Features Applications Block Diagram Pin Assignments Pin Diagram Pin Description Absolute Maximum Ratings Recommended Operation Conditions Converter Characteristics Power Supply Characteristic Reference Clock and Stop Input Requirements LVDS Data Interface Characteristics Serial Communication Interface Typical Operating Characteristics Histograms Integral Non-Linearity Register Description Configuration Register Overview Detailed Configuration Register Description Read Register Overview Detailed Description Time Measurements and Results Measurements of TDC-GPX2 Output Results Calculation of Time Differences Resolution RMS-Resolution Versus Effective Resolution High Resolution Combining Two Stop Channels Channel Combination for Low Pulse-to-Pulse Spacing Channel Combination for Pulse Width Measurement Input Pins for Time Measurement REFCLKP/N: Reference Clock Input REFOSCI/O: Quartz Driver as Reference Clock RSTIDXP/N: Reference Index Counter Reset STOP1…STOP4P/N: Stop Channels DISABLE/N: Stop Disable Input Levels, CMOS or LVDS LVDS Output Interface Digital Output Interface Output Setup and Configuration: LVDS Output Buffers Differential LCLKIN Input LVDS Single Data Read Output Interface (SDR) LVDS Double Data Read Output Interface (DDR) LVDS Output Test Pattern SPI Communication Interface General Detailed Pin Description Communication Commands (Opcodes) Detailed Command Description Initialization Reset Write / Incremental Write Read / Incremental Read Using SPI Interface for Read-Out of Stop Results Coding of Results Configuration of LSB by REFCLK_DIVISIONS Examples for Codes of Time Measurements Results Maximum Time Differences Conversion Latency and Conversion Rate Converter Latency LVDS Synchronization Latency Conversion Rate Peak Conversion Rate Read-Out Rate Average Conversion Rate Examples for Read-Out Rate with LVDS FIFOs for Adapting Peak and Average Conversion Rate Application Information Configuration Examples Typical Configuration for LVDS Example C++ Code Schematic External Components PCB Layout Package Drawings & Markings Mechanical Data QFN64 QFN64 Tray Information QFP64 QFP64 Tape & Reel Information Soldering & Storage Information Ordering & Contact Information RoHS Compliant & ams Green Statement Copyrights & Disclaimer Document Status Revision Information Content Guide