L76KB-A58

Part: L76 Series (L76, L76B) — Quectel

Type: GNSS Receiver Module (GPS+GLONASS / GPS+BeiDou)

Description: Multi-constellation GNSS SMD module (10.1 × 9.7 × 2.5 mm, 18 pads) with 2.8–4.3 V supply, -165 dBm tracking sensitivity (L76 GPS+GLONASS), up to 10 Hz update rate and 15 mA GPS tracking current.

Operating Conditions:

• Supply voltage: 2.8–4.3 V (typical 3.3 V)
• Update rate: up to 10 Hz (1 Hz default)

Absolute Maximum Ratings:

• Max supply voltage (VCC): 4.5 V
• Backup battery voltage (V_BCKP): 4.5 V
• Input voltage at digital pins: 3.6 V
• Max input power at RF_IN: 15 dBm
• Storage temperature: -45 to 125 °C

Key Specs:

• Supply voltage: 2.8–4.3 V, typical 3.3 V
• Current, GPS: acquisition 21 mA, tracking 15 mA @ -130 dBm
• Current, GPS+GLONASS: acquisition 25 mA, tracking 18 mA @ -130 dBm
• Current, GPS+BeiDou: acquisition 23 mA, tracking 18 mA @ -130 dBm
• Sensitivity, GPS+GLONASS: acquisition -148 dBm, reacquisition -160 dBm, tracking -165 dBm
• Sensitivity, GPS+BeiDou: acquisition -148 dBm, reacquisition -160 dBm, tracking -163 dBm
• TTFF with EASY enabled: cold <15 s, warm <5 s, hot 1 s (average @ -130 dBm)
• TTFF with EASY disabled: cold <35 s, warm <30 s, hot 1 s (autonomous @ -130 dBm)
• Horizontal position accuracy: <2.5 m CEP (autonomous, @ -130 dBm)
• 1PPS accuracy: typical <15 ns

Features:

• L76: GPS + GLONASS; L76B: GPS + BeiDou
• Supports GPS, GLONASS, BeiDou, SBAS (WAAS, EGNOS, MSAS, GAGAN), QZSS and AGPS
• EASY technology (self-generated AGPS) for fast hot and warm TTFF
• Power-saving modes: Period, AlwaysLocate, Standby, Backup
• Embedded flash memory for configuration storage and updates
• Multi-tone active interference canceller (AIC), ANTON antenna control, LOCUS logging
• Velocity accuracy 0.1 m/s; acceleration accuracy 0.1 m/s²
• Dynamic limits: 18,000 m altitude, 515 m/s velocity, 4G acceleration
• RoHS compliant

Applications:

• GNSS positioning and navigation designs embedded in user applications

Package:

• SMD module, 18 pads, 10.1 mm × 9.7 mm × 2.5 mm

Table 2: Feature

Table 2: Feature

The sensitivity is measured with passive antenna but without external LNA. It might be higher by about 3dB with external LNA or only with active antenna.

2.3. Block Diagram The following figure shows a block diagram of L76 series module. It consists of a single chip GNSS IC which includes RF part and Baseband part, a SAW filter, a TCXO and a crystal oscillator. Confidential

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Figure 1: Block Diagram

Figure 2: Pin Assignment Confidential

Figure 2: Pin Assignment Confidential

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Absolute maximum rating for power supply and voltage on digital pins of the module are listed in following table.

Table 9: Absolute Maximum Ratings Stressing the device beyond the 'Absolute Maximum Ratings' may cause permanent damage. These are stress ratings only. The product is not protected against over voltage or reversed voltage. If necessary, voltage spikes exceeding the power supply voltage specification, given in table above, must be limited to values within the specified boundaries by using appropriate protection diodes. NOTE Confidential

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