SOURCE: Leadis Technology, Inc.

May 19, 2008 12:01 ET

Leadis Technology Introduces World's First Touch Controllers With Integrated Haptics Driver for Mobile Phones

SUNNYVALE, CA--(Marketwire - May 19, 2008) - Leadis Technology, Inc. (NASDAQ: LDIS), an analog and mixed-signal semiconductor developer of color display driver, power management ICs, LED drivers, and audio ICs for mobile consumer electronic devices, today announced sample availability of the LDS6010 and LDS6040, two new products in the company's family of PureTouch™ low-power controllers designed for capacitive touch applications. The new devices are the world's first capacitive touch controllers with an integrated haptics driver for use with mobile phone touch-input controls including sliders, scroll wheels, and buttons. Both devices carry the "VibeTonz®-Ready" designation, certifying compatibility with Immersion Corporation's VibeTonz advanced haptic platform for mobile phones.

The LDS6010/LDS6040 controllers' haptics driver is a sophisticated block capable of delivering the crisp response required to achieve advanced tactile effects. The driver supports both ERM (eccentric rotating mass) and LRA (linear resonant actuator) vibration motors, enabling flexibility in system design for deploying an advanced haptics platform. A smart watchdog timer monitors the PWM input and sets the haptics driver to shutdown mode to save power if no PWM activity is detected. An integrated over-temperature shutdown protection circuit disables the haptics functionality if the controller temperature exceeds 135C, providing protection against motor failure conditions that might otherwise result in excessive current conditions and system battery drainage.

The LDS6040 also incorporates LED drivers for integrated visual feedback, with up to eight of the 15 touch sensor inputs configurable as keypad LED drivers capable of driving up to 8mA each (16mA available by connecting a single LED to two driver outputs). Sharing the same advanced LED driver architecture as Leadis' previously announced LDS6020 controller, the LDS6040 also supports true current control (0.25mA increments) with up to 32 dimming steps, a high-side architecture for enhanced safety and ESD immunity, and host-less activation of an LED when a touch event occurs. The LDS6040's haptics and LED drivers operate within a 3V to 5V supply range, with a programmable on-board voltage regulator enabling direct connection of the haptics supply to the system battery while still ensuring a consistent haptics experience across the battery discharge curve.

Optimized with a low power touch operating voltage of 1.8V, the LDS6010 and LDS6040 consume less than 200uW in full power mode (haptics in shutdown), eliminating the need for low power modes and their associated first-touch latency artifacts. Both controllers feature 15 touch sensor inputs.

Having passed rigorous testing criteria, both devices can be incorporated by Immersion's licensees into VibeTonz capable handsets. The VibeTonz Platform lets mobile phone manufacturers and content developers embed touch sensations in the handset user interface, media, and applications, including for:

--  Providing unmistakable tactile confirmation in response to touchscreen
    or button presses
    
--  Empowering caller ID with distinctive vibrations matching a melody or
    song that let users know who is calling even when sound is turned off
    
--  Enlivening mobile games with touch feedback similar to that found in
    console games
    
--  Supplying pulses when scrolling over items, allowing favorites,
    friends, or unread emails to feel a bit differently for easier, faster
    identification
    
--  Heightening the music and ringtone fun-factor by "turning up the
    subwoofers" with a vibe beat
    
--  Making alerts more discernible and memorable by varying how they feel:
    the beat of a team's fight song tells the user a message with the latest
    score has arrived
    

"More than 13 million mobile handsets have been shipped with our VibeTonz Platform," said Mark Belinsky, Vice President and General Manager for Mobility at Immersion. "Use of capacitive touch controls in mobile handsets, like the buttons and sliders that Leadis supports, is also growing. We are receiving a great deal of interest in the use of our VibeTonz Platform to provide tactile feedback for these types of touch controls. The new Leadis integrated touch controller and haptics driver solutions can make it easier for our licensees to integrate the Platform into their mobile handsets."

"We're delighted to introduce the world's first touch controllers with integrated haptics driver functionality," said Alvin Wong, Vice President and General Manager of Touch Technology at Leadis. "The VibeTonz haptics platform is a key differentiator that enables touch feedback for capacitive touch control inputs, as well as mobile content such as games, ringtones, and applications, helping to make the user experience more fun, distinctive, and intuitive. We're extremely pleased to support this advanced capability and proud to be the first touch controller provider to earn the VibeTonz®-Ready certification."

About the LDS6010

The LDS6010 is a programmable touch controller with integrated haptics driver for use with capacitive sensor arrays implementing touch-based input controls including sliders, scroll wheels, and buttons. Featuring 15 sensor inputs, the LDS6010 provides fast update rates of 2ms per sensor input with on-chip automatic calibration logic continuously monitoring the environment to adjust ambient baseline levels to increase touch accuracy.

The device operates with a 1.8V touch supply voltage and a haptics supply voltage range of 3V to 5V. Consuming less than 200uW of power in full power mode (haptics in shutdown), the LDS6010 enables extremely low power consumption in full power mode. Both SPI-compatible and I2C-compatible interfaces are supported with a general-purpose input/output (GPIO) and interrupt output for additional communication with the host processor. The LDS6010 is packaged in a 5mm x 5mm 40ld TQFN package with maximum thickness of 0.8mm.

About the LDS6040

The LDS6040 is a programmable touch controller with integrated haptics driver and keypad LED drivers for use with capacitive sensor arrays implementing touch-based input controls including sliders, scroll wheels, and buttons. Featuring 15 sensor inputs, the LDS6040 provides fast update rates of 2ms per sensor input with on-chip automatic calibration logic continuously monitoring the environment to adjust ambient baseline levels to increase touch accuracy.

Eight of the 15 sensor inputs are configurable as LED drivers capable of driving up to 8mA of current, with 16mA available for a single LED by connecting to two LED drivers simultaneously. LED dimming may be configured over various transition times, with 32 dimming steps available at maximum current drive. Automatic activation of LED with a valid touch event is achieved by associating an LED driver to a sensor input, alleviating the need for the host processor to turn on the LED.

The device operates with a 1.8V touch supply voltage and LED and haptics supply voltage ranges of 3V to 5V. Consuming less than 200uW of power in full power mode (haptics in shutdown, no LEDs driving), the LDS6040 enables extremely low power consumption in full power mode. Both SPI-compatible and I2C-compatible interfaces are supported with a general-purpose input/output (GPIO) and interrupt output for additional communication with the host processor. The LDS6040 is packaged in a 5mm x 5mm 40ld TQFN package with maximum thickness of 0.8mm.

For more information, visit www.leadis.com.

About Leadis Technology, Inc.

Leadis Technology, Inc., headquartered in Sunnyvale, California, designs, develops and markets analog and mixed-signal semiconductors that enable and enhance the features and capabilities of portable and consumer electronics devices. Leadis' product offerings include color display drivers, which are critical components of displays used in portable consumer electronic devices; LED drivers, which provide controlled levels of current required to drive light emitting diodes in diverse applications including mobile backlight units; power management ICs including LDOs, LDO controllers, shunt references, thermal switches, current regulators, and battery charger controllers; audio CODEC and FM transmitter ICs, which are integral components in portable media players and their associated aftermarket accessories; and touch controller ICs, which enable highly reliable touch-based input controls and attractive industrial design options for both mobile and non-mobile applications.

Certain statements in this press release including, but not limited to, the features and benefits of Leadis' new LDS6010 and LDS6040 capacitive touch controller ICs and the anticipated market adoption of these products, are forward-looking statements that are subject to risks and uncertainties that could cause results to be materially different than expectations. Such risks and uncertainties include, but are not limited to, lack of market adoption for the LDS6010 and LDS6040, delays in ramping these new products into production, delays in the integration of our products into consumer electronic devices, our reliance on third-party manufacturers, general portable electronics and semiconductor industry trends, and other risks detailed from time to time in Leadis' reports filed with the Securities and Exchange Commission including its Form 10-K for the year ended December 31, 2007 and Form 10-Q for the quarter ended March 31, 2008. Leadis disclaims any obligation to update these forward-looking statements.

Immersion and VibeTonz are trademarks of Immersion Corporation in the U.S. and other countries. (LDISG)

Contact Information

  • Contact Information:
    Eric S. Itakura
    Director, Business Development and Investor Relations
    Leadis Technology, Inc.
    408-331-8616

    Valerie Beaudett
    George Cohen Communications, INC.
    Email: Email Contact
    Tel: 650.400.7833