V2.0 – Jan-13
User’s Manual
Page 6 of 41
1 Introduction
The GPS modules A2100-A and A2100-B are Maestro’s first implementation of
CSR’s SiRFstarIV chip on GPS modules. Both are highly integrated GPS receivers
that can be used as SMT components. A very easy implementation (power, serial,
ON_OFF, and antenna) allows receiving position, velocity and time information.
NOTE
: Care must be taken to implement an orderly shut-down sequence along with
supplying power for a certain period of time after initiating the shut-down sequence.
Abrupt removal or drop of power while the module is running has risks ranging from
minor impact on TTFF to fatal, permanent corruption of flash memory code area!
While the A2100-A is a module designed for a 3.3V environment, the A2100-B works
with 1.8V Vcc and 1.8V I/Os.
1.1 Feature Overview
The A2100-A and A2100-B are based on the well-established A1084 outline and
offer new, outstanding features.
•
Fast, responsive location experience
o
High-sensitive navigation engine with tracking down to -163dBm
o
48 track verification channels
o
SBAS (WAAS, EGNOS, MSAS, GAGAN)
•
Breakthrough micro power technology
o
Requires only 50 – 500µA to maintain hot start capability
•
Active jammer remover
o
Removes in-band jammers up to 80dB/Hz
o
Tracks up to eight CW (continuous wave) jammers
