The CP2528 is 8 channels capacitive touch panel controller, used for scroll, navigation and selection detection. The controller contains SPI or I2C serial interface, extendable GPIO, high PSRR LDO and in-built OSC. The touch status can be read via serial interface or GPIO. GPIO can be configured to open drain mode. Particularly, adjacent sensor suppression (ASS) function ensures only one channel active each time. The range of power is 2.6V ~ 5.5V.
Low-power operation makes the CP2528 ideal for battery-operated systems, such as multimedia portable product. The CP2528 is specified over the -40℃ to +85℃ temperature range. |
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| FEATURES |
• Up to 8 channels
• Fast touch response time:18~20 ms
• High capacitance resolution(0.02pF @ 100uA charge current), measurement range is 0~80pF
• Support SPI/I2C/GPIO, touch state can be read via these interface
• Programmable interrupt, low active
• In-built LDO for high PSRR
• Auto compensation the drift of environment (temperature or humidity) and supply voltage.
• In-built oscillator
• 3 types of operation mode: Sleep /Idle / Normal
• Adjacent Sensor Suppression（ASS）
• Support back ground LED or buzzer to show touch status
• Embedded slide processor
• Low power consumption
• 0.35um CMOS process, LQFP-32,QFN-32 packages |
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| APPLICATIONS |
• MP3 players
• Mobile phones
• PC peripherals
• Television controls
• Pointing devices
• Remote controls |
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QFN-32
-40 oC ~ 85 oC |
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LQFP-32
-40 oC ~ 85 oC |
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