TDC-GP21 datasheet(4/91 Pages) AMSCO

4 / 91 page

TDC-GP21

acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

1-1

Content

Overview .................................................................................................. 1-3

1.1

Features............................................................................................. 1-3

1.2

Blockdiagram ...................................................................................... 1-5

1.3

Ordering Numbers ................................................................................ 1-5

Characteristics & Specifications ................................................................... 2-1

2.1

Electrical Characteristics ....................................................................... 2-1

2.2

Converter Specification.......................................................................... 2-4

2.3

Timings .............................................................................................. 2-7

2.4

Pin Description .................................................................................. 2-10

2.5

Package Drawings .............................................................................. 2-12

2.6

Power Supply..................................................................................... 2-14

Registers & Communication ......................................................................... 3-1

3.1

Configuration registers .......................................................................... 3-1

3.2

Read registers................................................................................... 3-12

3.3

EEPROM ........................................................................................... 3-15

3.4

SPI-interface ..................................................................................... 3-16

Converter Frontend .................................................................................... 4-1

4.1

TDC - Measurement mode 1 .................................................................. 4-1

4.2

TDC - Measurement mode 2 .................................................................. 4-9

4.3

Analog Input Section ........................................................................... 4-17

4.4

Temperature Measurement .................................................................. 4-20

Details and Special Functions ....................................................................... 5-1

5.1

Oscillator ............................................................................................ 5-1

5.2

Fire Pulse Generator ............................................................................. 5-4

5.3

Fast Initialization .................................................................................. 5-7

5.4

Noise Unit .......................................................................................... 5-8

5.5

EMC Measures .................................................................................... 5-9

Applications .............................................................................................. 6-1

6.1

Ultrasonic Heat Meter .......................................................................... 6-1

Miscellaneous ........................................................................................... 7-1

7.1

Bug Report ......................................................................................... 7-1

7.2

Last Changes ...................................................................................... 7-2

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