Hardware Guide

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Hardware Guide
Parameter
Description
Min.
Max.
Unit
V
IH
Logic high-level input voltage
0.7 x DVDD
DVDD + 0.3
V
V
IL
Logic low-level input voltage
–0.3
0.3 x DVDD
V
V
OH
Logic high-level output
0.8 x DVDD
DVDD
V
V
OL
Logic low-level output voltage
VSS
0.2 x DVDD
V
5.4 Electrical Features of Application Interfaces
Table 5-3 Electrical features of Digital Pins
( GPIO/PCM/UART/SPI/SIM/Control GPIO)
Voltage
5.5 Power Supply Features
5.5.1 Input Power Supply
Table 5-4 lists the requirements for input power of the NAD LGA module.
Table 5-4 Requirements for input power
Parameter
Min.
Typ.
Max.
Ripple
Unit
VPH_PWR
4.0
4.2
4.4
0.05
V
The minimum voltage of VBAT can extend to 3.6 V, under this condition, only ensure the module will not
restart, but the characteristics cannot be guaranteed.
Figure 5-1 Power supply during burst emission
The VBAT minimum value must be guaranteed during the burst (with 2.8 A Peak in GPRS or
GSM mode).
Table 5-5 Requirements for input current
Power
Peak (GSM 1 slot)
Normal (WCDMA)
Normal (LTE)
VBAT
2.8 A
1.4 A
1.4 A