VT5365_07 STMICROELECTRONICS [STMicroelectronics], VT5365_07 Datasheet - Page 4

• Manufacturer Part Number: VT5365_07
• Description: Single chip optical/laser mouse sensor for wireless applications
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Introduction
1
1.1
4/26
Introduction
The VT5365 sensor is a single-chip solid state optical tracking engine with no moving parts.
It allows the creation of a high performance, fully featured wireless mouse with the minimum
of external components. The device, which provides excellent navigation control and
precision, works on a wide range of surfaces.
The VT5365 incorporates features that simplify product design and reduce time to market.
By minimizing the number of external components, the mouse manufacturer has flexibility
for layout and product design.
ST has worked with optical component suppliers to produce a single piece light guide with
integrated lens, and makes recommendations for a compatible LED. Details of the optics
and LED are included in this document.
Figure 1.
Detailed overview
The VT5365 has been optimized for low power operation, enabling long battery life, which is
achieved by either a single 1.8 V or 2.0 V to 3.2 V supply.
The on-chip regulators allow for a wide range of power supplies taken from 2 batteries in
series, enabling a low cost BOM. However, for the most efficient power consumption, the
regulators can be bypassed so that the chip is driven at the minimal supply of 1.8 V by an
external power source (typically a DC/DC convertor from a single cell voltage). In both
cases, an on-chip DCDC regulator controls the LED, so that only a single 1.8 V supply is
required for the overall application. The supply scheme is selected by connecting an IO to
GND or VDD.
VT5365 reference design mouse
VT5365