CCD driver offers battery-life improvements
Intersil
Charge-coupled device driver
Intersil has introduced a charge-coupled device (CCD) driver that provides a fast and accurate driving solution for digital imaging products.
The ISL55112 dual CCD driver uses a patented technique to deliver fast, matched rise and fall times into highly capacitive image sensor loads.
This results in stable, predictable CCD driver waveforms with minimum variation over temperature while operating at high clock rates.
Rise and fall times are user-programmable, allowing for the removal of normally required electromagnetic interference damping components.
The ISL55112 dual CCD driver is said to meet the needs of portable camera designers by using small 4 x 5mm TQFN packaging and by providing a largely mirrored pin-out that allows a pair of devices to be used with sensors having dual video outputs with minimal wasted board space.
Integration of additional reset gate and last h drivers simplifies signal routing and saves space on the sensor board.
With energy-saving features such as quick recovery standby and an ultra-efficient power-down mode, the ISL55112 is said to offer improvements in battery life for digital cameras.
It is also compatible with low-power 3V logic devices.
The ISL55112 can operate from a supply voltage up to 8V that can be unipolar or bipolar, making it compatible with a range of CCD sensor devices, and allowing it to be used in a range of imaging platforms.
The ISL55112 is available in a 240-lead 4 x 5mm TQFN package.
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