PLN2020 Datasheet, PDF (1/2 Pages) NXP Semiconductors – Complete navigation sensor that works on virtually all surfaces

PLN2020
twin-eye laser sensor
Complete navigation sensor
that works on virtually all
surfaces
Introduction
The Philips’ PLN2020 twin-eye laser sensor is a high-
precision, ultra-fast, low-power consuming, small-sized,
single-component, laser-based tracking device for use in
computer mice, identification devices, printers and mobile
phones.
Philips Laser Sensors
General information
The PLN2020 is a fully integrated single-component,
robust, self-aligning and small-sized (<180 mm³) laser-
based tracking device. The 11-pin 3.85-mm high twin-eye
laser sensor has a printed circuit board footprint of a mere
6.8 mm x 6.8 mm and incorporates lenses for its two lasers
in the package assembly. Thanks to a dedicated laser
power control scheme, energy use is limited to a minimum
while power management is maximized, making the device
particularly useful for cordless mice.
Key features
Design-in simplicity
Complete single integrated component solution
(System-In-Package)
11-pin miniature square package
Intelligent, built-in, multi-mode power management
system
Low-power operation and sleep modes
Accurate optical navigation
Smooth and rough surface navigation
3D motion sensor
Accurate motion up to 500 mm/s (20 ips) with an
extended motion range up to 1000 mm/s
Micrometer resolution (800 cpi)
Single 3.3 volt power supply
SPI serial bus host interface
High-speed serial port registers for programming and
data transfer
Embedded firmware can be upgraded and customized
Active redundant protection system to ensure laser
safety
Lead-free wave solderable (or by manual soldering)
No mechanical moving parts
Insensitive to wear and tear
The PLN2020 is based on laser tracking technology. It
measures changes in position by sensing the scattered
laser light that is reflected by the surface, and
mathematically by on-chip logic and software, determining
the direction and magnitude of the movement. It is capable
of measuring extremely accurately at a wide range of
speeds.
The PLN2020 does not require a smooth surface, but can
be used on virtually all light-scattering surfaces, even those
with a relatively rough structure. Compact in dimensions,
the PLN2020 is a true ‘system-in-a-package’ that is
suitable for many applications. As there are no moving
parts, and because of its self-aligning optical path, the
application of the technology is simple and can be mass-
produced in a cost-effective manner without applying
expensive aligning procedures.