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Lassen iQ
Low-power, high-quality GPS solution
for your mobile products |
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| datasheet |
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Trimble’s Lassen® iQ module is
one smart buy. It adds powerful,
12-channel GPS functionality
to your mobile product in a
postage-stamp-sized footprint
with ultra-low power consumption
and extreme reliability—all
at a very economical price. |
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Designed for portable handheld,
battery-powered applications
such as cell phones, pagers,
PDAs, digital cameras, and many
others, the module is also ideal
for standard GPS applications
such as tracking. |
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The 12-channel Lassen iQ
module is fully compatible with
Trimble’s popular Lassen SQ
module. Using Trimble’s breakthrough,
patented FirstGPS® architecture, the module delivers
complete position, velocity and
time (PVT) solutions for use in
the host application. |
| The Lassen iQ module features
two GPS signal sensitivity
modes: Standard and Enhanced.
With Enhanced mode enabled,
the module automatically
switches to higher sensitivity
when satellite signals are weak. |
| The module also supports TSIP
download of critical startup
information for fast acquisition.
This aided GPS (A-GPS) startup
provides hot start performance
for each power-up. |
| The Lassen iQ module is the only
stamp-sized GPS product that
supports the four most popular
protocols: DGPS (RTCM),
TSIP (Trimble Standard Interface
Protocol), TAIP (Trimble ASCII
Interface Protocol) and NMEA 0183. |
| The Lassen iQ module combines
Trimble performance and quality
with low cost. With an MTBF
(mean time between failures) figure
of 60 years, it is one of the most reliable
GPS receivers on the market. |
A metal shield encloses the
module for protection and ease
of handling. The package has
a small form factor, (approximately
26 mm x 26 mm,
including the shield). It typically
requires less than 90 mW
of power at 3.3 VDC.
The highly integrated module
is a miniature board containing
Trimble GPS hardware core
based on our Colossus® RF
ASIC and IO-TS digital signal
processor (DSP), a 32-bit RISC
CPU and fl ash memory. |
The Lassen iQ module is compatible
with active, 3.3-VDC
antennas. Three such antennas
are available from Trimble and
are recommended for use according
to your application; see the
reverse side for antenna details.
The module provides both antenna
open and short detection plus
antenna short protection. |
| The Lassen iQ Starter Kit provides
everything you need to
get started integrating state-ofthe-art GPS capability into your
application. |
| Key Features: |
- 12-channel simultaneous operation
- Ultra-low power consumption: less than 90 mW (27 mA) @ 3.3 V
- Dual sensitivity modes with automatic switching
- Aided GPS through TSIP
- Antenna open and short circuit detection and protection
- Compact size: 26 mm W x 26 mm L x 6 mm H
- Supports NMEA 0183, TSIP, TAIP, DGPS protocols
- Trimble quality at low cost
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| Performance Specifications
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| General: |
L1 (1575.42 MHz) frequency, C/A code, 12-channel, continuous tracking
receiver |
| Update rate: |
TSIP @ 1 Hz; NMEA @ 1 HZ; TAIP @ 1 Hz |
| Accuracy: |
Horizontal: <5 meters (50%), <8 meters (90%)
Altitude: <10 meters (50%), <16 meters (90%)
Velocity: 0.06 m/sec
PPS (static): ±50 nanoseconds |
| Acquisition: |
(Autonomous Operation in Standard Sensitivity Mode)
Reacquisition: <2 sec. (90%)
Hot Start: <10 sec (50%), <13 sec (90%)
Warm Start: <38 sec (50%), <42 sec (90%)
Cold Start: <50 sec (50%), <84 sec (90%)
Cold start requires no initialization.
Warm start implies last position, time and almanac are saved by backup
power.
Hot start implies ephemeris also saved. |
| Operational limits: |
Altitude: 18,000 m
Velocity: 515 m/s
Either limit may be exceeded, but not both |
| Interface Characteristics
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| Connectors: |
I/O: 8-pin (2x4) 2 mm male header, micro terminal strip ASP 69533-01
RF: Low-profile coaxial connector H.FL-R-SMT (10), 50 Ohm |
| Serial Port: |
2 serial ports (transmit/receive) |
| PPS: |
3.3 V CMOS-compatible TTL-level pulse, once per second |
| Protocols: |
TSIP, TAIP, NMEA 0183 v3.0, RTCM SC-104 |
| NMEA Messages: |
GGA, VTG, GLL, ZDA, GSA, GSV and RMC
Messages selectable by TSIP command
Selection stored in flash memory |
| Electrical Characteristics : |
| Prime power: |
+3.0 VDC to 3.6 VDC (3.3 V typ.) |
| Power consumption: |
Less than 90 mW (27 mA) @ 3.3 V |
| Backup power: |
+2.5 VDC to +3.6 VDC (3.0V typ.) |
| Ripple Noise: |
60 mV, peak to peak from 1 Hz to 1 MHz |
| Antenna Fault Protection: |
Antenna Fault Protection Open and short circuit detection and protection |
| Environmental Specifications : |
| Operating Temperature: |
–40° C to +85° C |
| Storage Temperature: |
–55° C to +105° C |
| Vibration: |
0.008 g²/Hz 5 Hz to 20 Hz
0.05 g²/Hz 20 Hz to 100 Hz
–3 dB/octave 100 Hz to 900 Hz |
| Operating Humidity: |
5% to 95% R.H. non-condensing, at +60° C |
| Physical Characteristics : |
| Enclosure: |
Metal enclosure with solder mounting tabs |
| Outside Dimensions: |
26 mm W x 26 mm L x 6 mm H
(1.02” W x 1.02” L x 0.24” H) |
| Weight: |
6.5 grams (0.2 ounce) including shield |
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