ZSSC3122 Datasheet, PDF (49/64 Pages) List of Unclassifed Manufacturers – Low Voltage Capacitive Sensor Signal Conditioner

ZSSC3122 Datasheet
5.1.3 Temperature Analog Front End Configuration (T_Config, EEPROM Word 11_HEX)
This register is loaded immediately before a capacitance measurement is taken, so a power cycle is not needed
for changes to take effect.
Table 5.4 T_Config Bit Assignments
Bit Range
2:0
IC Default
010_BIN
Name
CDC_Reference
5:3
010_BIN
CDC_Offset
8:6
110_BIN
Temp_Trim
9
11:10
0_BIN
11_BIN
Not Available
Resolution
15:12
1000_BIN
Not Available
Description and Notes
CDC reference capacitor selection. The factory
settings are set for a full span temperature range
from -20°C to +125°C.
Note: Do not change this setting from the factory
setting unless a different temperature range is
needed.
CDC offset capacitor selection. The factory settings
are set for a full span temperature range from -20°C
to +125°C.
Note: Do not change this setting from the factory
setting unless a different temperature range is
needed.
Trim setting used for the temperature measurement.
The factory settings are set for a full span
temperature range from -20°C to +125°C.
Note: Do not change this setting from the factory
setting unless a different temperature range is
needed.
Do Not Change – must leave at factory settings
Temperature resolution and sample rate: ^{‡‡‡}
00_BIN = 8 bits at 0.7 ms rate
01_BIN = 10 bits at 1.6 ms rate
10_BIN = 12 bits at 5.0 ms rate
11_BIN = 14 bits at 18.5 ms rate
Do Not Change – must leave at factory settings
‡‡‡
All time values shown are typical; for the worst case values, multiply by 1.1 (nominal frequency ±10%).
© 2016 Integrated Device Technology, Inc.
49
January 25, 2016