A2235-H
SiRFStarIV- GPS Receivers
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The A2235-H GPS receiver modules enable fastest acquisition and tracking with the latest SiRFstarIV technology. This small form-factor module fully addresses the demand for lowest power consumption with, amongst other features, SiRFaware technology. The removal of jammers does not only facilitate designs of new products, but guarantees operation even in hostile environments. High sensitivity during acquisition or while tracking allows for use in many different environments and under toughest operating conditions. |
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Product Highlights
- simplified integration
- efficient time to market
- leading performance
- Lowest assembly cost
- Small footprint
- Ultra Low power consumption
- Bench marking sensitivity
- In-band jamming signal removal
Overview for A2235-H
The A2235-H GPS receiver modules enable fastest acquisition and tracking with the latest SiRFstarIV technology. This small form-factor module fully addresses the demand for lowest power consumption with, amongst other features, SiRFaware technology.
The removal of jammers does not only facilitate designs of new products, but guarantees operation even in hostile enviroments. High sensitivity during acquisition or while tracking allows for use in many different environments and under toughest operating conditions.
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Small footprintThe power pins, ground pins, and dedicated pins are at the same pin location across device densities so it can adapt to your actual configuration. |
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Ultra Low power consumptionSiRFaware’s advanced low power management modes, high level of integration and multiple communication ports in a small form-factor makes the A2235-H suitable for a broad spectrum of GPS applications where performance, cost and time to market are prime considerations (only 29 mA average tracking). |
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Anti-jamming detectionOur receivers offer an anti jamming feature: they constantly scan the signals in the area and blank out the non-satellite ones. You are then safe from jammers and others interferences. |
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Download SiRF LiveTest the performance of Maestro GNSS receivers and develop your application with SiRF Live software. Download here |
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Features & Specifications for A2235-H
The A2235-H (ROM) is Lantronix Wireless Solutions answers to the most critical challenges in the GPS market: simplified integration, leading performance, and efficient time to market. The combination of the enhanced fully functional SiRFStar IV GPS engine and a custom-designed high directional patch antenna on board help to ease engineers integration effort of leading GPS technology into devices. The A2235-H fully address the demand for extreme low power operation and ultra-fast Time-To-First-Fix. Their high level of sensitivity allows for use in the most demanding environmental conditions.
- SMT based integrated GPS antenna module
- 17.8 x 16.5 mm2
- 29 mA average tracking (full power mode)
- -163 dBm tracking
- up to 8 strongest interferes signals detected and mitigated
| PERFORMANCE | A2235-H | |
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| Channels | 48 parallel tracking | |
| Correlators | 400,000 plus | |
| Frequency | LI – 1,575 MHz | |
| Tracking | – 163 dBm | |
| Navigation | – 160 dBm | |
| Acquisition (cold start) | – 148 dBm | |
| Position Accuracy (horizontal) |
< 2.5 m CEP (autonomous) < 2.0 m CEP SBAS |
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| Time To First Fix | ||
| Hot Start | < 1 s | |
| Warm Start | < 32 s | |
| Cold Start | < 35 s | |
| Navigation | ||
| Update Rate | 1 Hz / 5 Hz Supported | |
| COMMUNICATION | ||
| UART – NMEA (Default) | ||
| NMEA message Switchable | GGA, RMC, GSA, GSV, VTG, GLL, ZDA | |
| Baud rate Switchable |
4,800 (default) 1,200 to 115.2k |
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| Ports | Tx (NMEA output) Rx (NMEA input) |
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| UART – SiRF Specific SSB/OSP | ||
| SiRFbinary protocol | Protocol for SiRFstar product family up to SSIII | |
| One Socket Protocol | Protocol extension for SiRFstarIV | |
| Baud rate Switchable |
57.6k (default) 1,200 to 115.2k |
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| Ports | Tx (NMEA output) Rx (NMEA input) |
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| HIGHLIGHTS | ||
| SiRFnavTM | High availability and coverage; improved TTFF in weak signal environments | |
| SiRFawareTM | Keeps module in a state of readiness for rapid navigation (hot start) | |
| Jammer remover technology | Detects and removes up to 8 in-band jammers with minimal loss of sensitivity | |
| A-GPS | Embedded Extended Ephemeris (SiRFInstantFix1) and Ephemeris Push support | |
| MEMS I2C interface | Prepared to use additional sensor information for improved navigation | |
| Flash-based design (A2135-H only) |
Prepared to store configuration and calibration data and to allow firmware updates | |
| Internal antenna | Best matched build-in antenna for easy integration | |
| POWER | ||
| Input voltage | 3.0 to 3.6 VDC Nominal 3.3 VDC |
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| Average Current Draw | A2135-H | A2235-H |
| Full power mode (Searching) | 36 mA | 36 mA |
| Full power mode (tracking) | 24 mA | 22 mA |
| PTF mode | 0.7 mA | 0.9 mA |
| TricklePowerTM Mode | 8.7 mA | 7.2 mA |
| Hibernate | 27 μA | 27 μA |
| Antenna supply via Vant | ||
| Voltage range | up to 5.0V | |
| Max. allowed current | 50 mA | |
| MECHANICAL | ||
| Dimensions | ||
| L x W x H | 17.8 x 16.5 x 7.1 mm | |
| L x W x H | 0.7” x 0.65” x 0.28” | |
| Weight | 4.0 g / 0.14 oz. | |
| ENVIRONMENT | ||
| Temperature | ||
| Operating | -40°C to +85°C | |
| Storage | -40°C to +85°C | |
| Humidity | Non condensing | |
Order Information & Part Numbers for A2235-H
| GPS Receivers | ||||
| A2235H | A2235-H-V9333 | GNSS A2235H |
GNSS A2235H - SiRFstarIV-based 48-channel GPS receivers built-in patch antenna, -148 dBm acquisition sensitivity, -160 dBm navigation sensitivity, I²C MEMS interface |
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