Product category:
Optoelectronic Sensors, Switches and Receivers
News Release from: Atmel Corporation | Subject: ATR0874 photodetector IC
Edited by the Electronicstalk Editorial
Team on 19 April 2007
Photodetector IC for use in DVD and CD
drives
A new photodetector IC (PDIC) for use in the optical pick-up units of DVD and CD drives is thought to be the industry's smallest PDIC device, measuring only 4 x 3.5mm.
Atmel has a new photodetector IC (PDIC) for use in the optical pick-up units (OPUs) of DVD and CD drives The new ATR0874 is thought to be the industry's smallest PDIC device, measuring only 4 x 3.5mm and is a perfect fit for the slim drives found in most laptops
This article was originally published on Electronicstalk on 18 Nov 2005 at 8.00am (UK)
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The new ATR0874 is the first member of a new family of PDIC devices which complements Atmel's current broad product range of laser diode drivers (LDD) and automatic power controllers (APC).
The ATR0874 photo detector IC was developed using Atmel's in-house BiCMOS process (with optical extension) and is manufactured in Atmel's patented QFN open-housing technology.
The QFN open-housing has an open cavity thus permitting the laser direct access to the die surface and therefore to the photo diodes.
In addition, the housing shares all the advantages of standard QFN housing including the ability to be soldered at temperatures up to 260C which reduces costs related to specialised soldering procedures.
Competing devices use clear moulding, or glass lid packaging, which leads to various problems such as scratches, voids, etc.
These imperfections may result in a higher bit error rate, reduced system performance and a lower yield.
The new PDIC is designed for high-speed DVD applications such as DVD-RAM and DVD+/-RW at a wavelength of 650nm and CD-RW at a wavelength of 780nm.
Due to the device's small footprint, it is suited for applications with highly restricted space specifications.
The IC includes 10 channels with four different gain steps and is optimised for fast settling times and low offset voltages.
Samples of the new PDIC ATR0874 in 4 x 3.5mm QFN open-house packages are available now with pricing starting at US $1.00 for 10,000 pieces.
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