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1 Introduction
A5100-A is a compact high sensitivity concurrent GNSS module that integrates
CSR's latest SiRFstarV technology into a single and easy to integrate SMT device.
By supporting simultaneous GLONASS, GPS, QZSS and SBAS measurements with
the industry's best sensitivity engine, the highest accuracy, ground tracks and fast-
est time-to-first-fix (TTFF) are ensured even under tough operating conditions. The
jammers removal algorithm not only facilitates integration in today's ever more
complex communication devices, but guarantees performance even in hostile situa-
tions. SiRFaware's advanced low power management modes, high level of integra-
tion and multiple communication ports in a small form-factor makes the A5100-A
suitable for a broad spectrum of GPS applications where performance, cost and time
to market are prime considerations.
A5100-A is a drop-in replacement solution for all A2200-A customers. It is housed in
a 15.0 x 10.2 x 2.5 mm 22 pins SMD package with castellated edge that includes the
SiRFStarV (CSRG05e) chipset, referred to later as SS5e, built-in SPI Flash, all RF
matching elements, antenna DC control, RF SAW filtering, various thermal and pe-
ripheral components and the TCXO crystal reference. A very easy implementation
(power, serial, ON_OFF, and antenna) allows receiving position, velocity and time
information.
A5100-A is designed for 3.3V power supply.
1.1 Feature Overview
The A5100-A is based on the well-established A2200-A outline and offering new
outstanding features, especially GLONASS reception.
• Fast, responsive location experience
o High-sensitive navigation engine with tracking down to -165dBm
o 52 track verification channels
o SBAS (WAAS, EGNOS, MSAS, GAGAN)
o Concurrent tracking of multiple constellations of the GPS and
• Breakthrough micro power technology
o Requires only 60 – 600µA to maintain hot start capability
• Internal Power-On-Reset (POR) reset chipset to prevent memory corruption if
main power removal abruptly
• Active CW interference rejection
• SiRFInstantFix™ extended ephemeris aiding – CGEE and SGEE
V1.0-Mar-14
GLONASS systems
User's Manual
Page 6 of 43
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