UFC
Published by acam -messelectronic gmbh
©acam-messelectronic gmbh 2014
TDC-GP21
Disclaimer / Notes
“Preliminary” product information describes a product which is not in full production so
that full information about the product is not available yet. Therefore, acam-messelectronic
gmbh (“acam”) reserves the right to modify this product without notice. The information
provided by this data sheet is believed to be accurate and reliable. However, no
responsibility is assumed by acam for its use, nor for any infringements of patents or
other rights of third parties that may result from its use. The information is subject to
change without notice and is provided “as is” without warranty of any kind (expressed or
implied). All other brand and product names in this document are trademarks or service
marks of their respective owners.
Support / Contact
For a complete listing of Direct Sales, Distributor and Sales Representative contacts, visit
the acam web site at:
http://www.acam.de/sales/distributors/
For technical support you can contact the acam support team in the headquarters in
Germany or the Distributor in your country. The contact details of acam in Germany are:
support@acam.de
or by phone
+49-7244-74190.
Member of the ams Group
TDC-GP21
Content
1
Overview .................................................................................................. 1-3
1.1
1.2
1.3
2
2.1
2.2
2.3
2.4
2.5
2.6
3
3.1
3.2
3.3
3.4
4
4.1
4.2
4.3
4.4
5
5.1
5.2
5.3
5.4
5.5
6
7
6.1
7.1
7.2
Features ............................................................................................. 1-3
Blockdiagram ...................................................................................... 1-5
Ordering Numbers ................................................................................ 1-5
Electrical Characteristics ....................................................................... 2-1
Converter Specification .......................................................................... 2-4
Timings .............................................................................................. 2-7
Pin Description .................................................................................. 2-10
Package Drawings .............................................................................. 2-12
Power Supply ..................................................................................... 2-14
Configuration registers .......................................................................... 3-1
Read registers ................................................................................... 3-12
EEPROM ........................................................................................... 3-15
SPI-interface ..................................................................................... 3-16
TDC - Measurement mode 1 .................................................................. 4-1
TDC - Measurement mode 2 .................................................................. 4-9
Analog Input Section ........................................................................... 4-17
Temperature Measurement .................................................................. 4-20
Oscillator ............................................................................................ 5-1
Fire Pulse Generator ............................................................................. 5-4
Fast Initialization .................................................................................. 5-7
Noise Unit .......................................................................................... 5-8
EMC Measures .................................................................................... 5-9
Ultrasonic Heat Meter .......................................................................... 6-1
Bug Report ......................................................................................... 7-1
Last Changes ...................................................................................... 7-2
Characteristics & Specifications ................................................................... 2-1
Registers & Communication ......................................................................... 3-1
Converter Frontend .................................................................................... 4-1
Details and Special Functions ....................................................................... 5-1
Applications .............................................................................................. 6-1
Miscellaneous ........................................................................................... 7-1
acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany -
www.acam.de
1-1
Member of the ams Group
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