THS789 Datasheet, PDF (8/34 Pages) Texas Instruments – THS789 Quad-Channel Time Measurement Unit (TMU)

THS789
SLOS776A – SEPTEMBER 2012 – REVISED DECEMBER 2015
7 Detailed Description
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7.1 Overview
The THS789 TMU includes four measurement channels plus a synchronization channel optimized to make high-
accuracy time-interval measurements. The following is a brief description of the various circuit blocks and how
they interact to make and process the time measurements.
7.2 Functional Block Diagram
RdataA
RdataB
RdataC
RdataD
RCLK
RstrobeA
RstrobeB
RstrobeC
RstrobeD
Output (Voltage)
TEMP
OT_ALARM
PLL
DLL
Serial
Result Data
Time
Stamp
Logic
Event
Logic
Control
Registers
Temp
Sensor
Host
Interface
MCLK
(Fixed)
Sync Input
EventA
EventB
EventC
EventD
Reset
Hdata
HCLK
Hstrobe
Serial Host
Processor
Interface
B0347-01
8
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