CN / EN
GH611
GH611 Block Diagram
GH611 Application Diagram

GH611 offers a capacitive 2-in-1 solution of in-ear detection (IED) and touch control for in-ear/touch key detection of smart earphones. Integrated with a high-performance, low-power MCU and self-capacitance front-end circuit, GH611 can perform IED and touch operations based on capacitance changes, thus realizing control over the corresponding human interface. Supported by our self-developed sensing algorithm, GH611 ensures a super-high signal-to-noise ratio and precisely identifies the earphone status (in/out ear) as well as operations like swipe, single / double tap, and long press.

GH611 Block Diagram
GH611 Application Diagram

Key Features

  • Accurate and reliable low-power in-ear detection and touch detecting

  • Touch key detection, providing easy-to-use human-machine interface

  • Automatic temperature calibration

  • Adapt to universal MCU

  • Channels: 2 in-ear detection channels and 3 touch key detection channel

  • Wide range of operating voltage: 1.7 V ~ 5.5 V

  • Package: WLCSP 19 Pins, 2.09 mm * 1.94 mm * 0.513 mm

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Product Details

Product

GH611

Channels

7

Self-Cap

Capacitance resolution

aF-level

Self-capacitance input range

Up to ±20 pF

Communication interface

I2C

ADC

13 bit

MCU

16 bit-low-power MCU

VDD(V)

2 ~ 5 V or 1.8 V

V_I2C(V)

2 ~ 5 V or 1.8 V

Package

CSP-19, 2.09 * 1.94 mm

Applications

Wear detection + Touch key

Hardware Resources

GH61x-EVK

Used for hardware evaluation and performance testing of GH610, GH611 chips

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Software & Tools

GH61x-GTModuleTest

Provide a fully module test and complete product test solution support to GH610/GH611, which support hardware function test, capacitive sensor calibration &test.
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