CAP1206-1-SL-TR Integrated Circuits (ICs)

Due to market price fluctuations,if you need to purchase or consult the price.You can contact us or emial to us:   sales@allicdata.com

1. Description

The CAP1206-1-SL-TR is a multiple channel capacitive touch sensor controller. It contains six (6) individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. Each sensor input is calibrated to compensate for system parasitic capacitance and automatically recalibrated to compensate for gradual environmental changes. The CAP1206 includes Multiple Pattern Touch recognition that allows the user to select a specific set of buttons to be touched simultaneously. If this pattern is detected, a status bit is set and an interrupt is generated. The CAP1206 has Active and Standby states, each with its own sensor input configuration controls. Power consumption in the Standby state is dependent on the number of sensor inputs enabled as well as averaging, sampling time, and cycle time. Deep Sleep is the lowest power state available, drawing 5μA (typical) of current. In this state, no sensor inputs are active, and communications will wake the device.

2. Features

    1. Six (6) Capacitive Touch Sensor Inputs

        - Programmable sensitivity

        - Automatic recalibration

        - Calibrates for parasitic capacitance

        - Individual thresholds for each button

    2. Multiple Button Pattern Detection

    3. Power Button Support

    4. Press and Hold Feature for Volume-like Applications

    5. 3.3V or 5V Supply

    6. Analog Filtering for System Noise Sources

    7. RF Detection and Avoidance Filters

    8. Digital EMI Blocker

    9. 8kV ESD Rating on All Pins (HBM)

  10. Low Power Operation

        - 5μA quiescent current in Deep Sleep

        - 50μA quiescent current in Standby (1 sensor input monitored)

        - Samples one or more channels in Standby

  11. SMBus / I2C Compliant Communication Interface

  12. Available in a 10-pin 3mm x 3mm DFN RoHS compliant package

3. Applications

    1. Desktop and Notebook PCs

    2. LCD Monitors

    3. Consumer Electronics

    4. Appliances

4. Pin configuration

5. Power Button

The CAP1206 has a “power button” feature. In general, buttons are set for quick response to a touch, especially when buttons are used for number keypads. However, there are cases where a quick response is not desired, such as when accidentally brushing the power button causes a device to turn off or on unexpectedly. The power button feature allows a sensor input to be designated as the “power button” . The power button is configured so that a touch must be held on the button for a designated period of time before an interrupt is generated; different times can be selected for the Standby and the Active states. The feature can also be enabled / disabled for both states separately.

6. Low frequency noise detection

Each sensor input has a low-frequency noise detector, which can detect whether low-frequency noise is injected into the input There is enough force to destroy the reading. By default, if this happens, the device will reject the damaged samplesee, and the corresponding bit in Noise is set to logic "1" Flag status register.

7. Noise status and configuration

The noise flag status bit can be used to indicate RF and/or other noise. If the SHOW_RF_NOISE bit in the configuration register is set to 0, if any analog noise is detected, the noise flag status bit of the capacitance sensor input is set. if The SHOW_RF_NOISE bit is set to 1, and the noise flag status bit is set only when RF noise is detected. CAP1208 provides optional noise filtering control for analog and digital noise. For analog noise, you can choose whether to treat the data as invalid. By default, DIS_ANA_NOISE If the low frequency analog noise is Detected; sample was discarded. By default, the DIS_RF_NOISE bit will If RF noise is detected, the touch sensor input is blocked; the sample is discarded. For digital noise, you can set the sensor input noise threshold. If the capacitive touch sensor input exceeds the sensor noise threshold but does not exceed the touch threshold, it is determined that the noise spike is caused. this The DIS_DIG_NOISE bit can be set to discard samples indicating noise spikes So they are not used for automatic recalibration procedures.