Single-Frequency and Multi-Constellation Positioning GNSS
The SL871K2L series includes multiconstellation, single-frequency receivers supporting up to four constellations for best coverage and performance.
It offers:
Product Description
The SL871K2 is a member of the SL871 module family. It is based on the low-power AG3352 platform from Airoha.
This module has the same pinout as the xL871 form factor. This family supports multiple constellations, including:
The SL871K2 module tracks four constellations in the L1 frequency by default, including the modern Beidou B1C signal.
This product outputs a precise one pulse per second (1PPS). Furthermore, it embeds timing-related features like time receiver autonomous integrity monitoring (TRAIM) and surveying mode for high-performance timing applications.
The SL871K2 supports assisted GNSS (A-GNSS) in autonomous and server-based modes.
Form Factor Family
The SL871 form factor allows customers to choose from different GNSS technologies using a similar footprint. Modules in this family are offered in a 9.7 x 10.1 mm LCC package.
Our positioning product portfolio results from over 30 years of experience in GNSS applications. Typical applications include:
Product Features
*On dedicated firmware.
Certifications
Environmental
Power Supply
– VCC: 1.75-1.95 V or 2.8-3.6 V
– Typ: 1.8 V or 3.3 V
Current Consumption (two hardware variants)
– Acquisition: 41 mW (3.3V)/35mW (1.8V)
– Tracking: 41 mW (3.3V)/35mW (1.8V)
– RTC mode (VBATT_RTC): < 50 μW
*Preliminary
| Supply | Concurrent constellation | LNA | I2C | UART | DC block | Ant ON | Ant sense | Flash | |
|---|---|---|---|---|---|---|---|---|---|
| SL871K2L-18B | 1.8V (DC-DC) | Max 4 +QZSS +SBAS | • | • | • | • | • | • | |
| SL871K2L-18P | 1.8V (LDO) | Max 4 +QZSS +SBAS | • | • | • | • | • | • | |
| SL871K2L | 3.3V | Max 4 +QZSS +SBAS | • | • | • | • | • | • | • |
| SL871L | 3.3V | Max 3 +QZSS +SBAS | • | • | • | • | • | • | • |
| SL871 | 3.3V | Max 3 +QZSS +SBAS | • | • | • | • | • | ||
| SL871-S | 3.3V | GPS/QZSS only | • | • | |||||
| SL871L-S | 3.3V | GPS/QZSS only | • | • | • | • |
