CSK05TN General Description：
The CSK05TN are single-chip self-capacitance touch controller IC with a built-in high-speed MCU.They achieved extremely high sensitivity and low power consumption by its rapid self-capacitancesensing technology.
CSK05TN Features：
Built-in high-performance DSP module
Online Program
Built-in watch dog
Supports multiple keys
Capacitance key supporting
Up to 5 sensing channels
Support floating/pull-down mode
Auto calibrating parameters
High efficient power management
Active Mode: 2.0mA
Monitor Mode: 9uA
Touch sensing capacitance support : 5pF~50pF
Communication interface
I2C Master / Slave mode, support up to 400KHz
Support 1.8V/3.3V Logic level
Power supply
Single Power supply : 2.8V ~ 3.6V ripple <= 50mv
Package：QFNWB3*3-20L(P0.4T0.55）
CSK05TN Typical Applications：
Consumer electronics, electronic toys.
CSK05TN Schematic Diagram：
Note:
CMOD capacitor requirements: NPO/COG capacitor, 10% accuracy at least.
CMOD capacitor range is 1nF-5.6nF.1nF is selected in most cases. Optimum value depends on the capacitor to be measured.
CMOD filter capacitor must be placed as close to corresponding pin as possible, keep line as short as possible.
CSK05TN Pin Map and Functions：
CSK05TN Ordering Information：
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Part number
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Package type
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Surface printing
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MOQ
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CSK05TN
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QFNWB3*3-20L(P0.4T0.55）
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CSK05TN
XXXXX
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take-up package（5000）
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CSK05TN Work modes:
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