Electrical Characteristics; Power; Power Supply - Fibocom NL668-LA Series Hardware Manual

4 Electrical Characteristics

4.1 Power

Table 4-1 show the power interface of NL668-LA series module.
Table 4-1 Power interface
Pin Name I/O
VBAT_RF PI
VBAT_BB PI
VDD_EXT PO
GND G
Note:
In the rest of the document, VBAT includes VBAT_BB and VBAT_RF.

4.2 Power Supply

The NL668-LA series module needs to be powered by the VBAT pin. The recommend power design is
shown in Figure 4-1:
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FIBOCOM NL668-LA Series Hardware Guide
Pin
57, 58
59, 60
7
8, 9, 10, 19, 22, 36, 46,
48, 50–54, 56, 72, 76,
85–112
Figure 4-1 Recommend power design
Description
Module power supply, 3.3V~4.3V, typical value 3.8V
Module power supply, 3.3V~4.3V, typical value 3.8V
Module digital voltage output, 1.8V, 80mA
All GND pins must be grounded
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