Huawei ME909 Power Supply Features, Input Power Supply, Parameter Min Typ Max Ripple Unit, 23dbm

HUAWEI ME909 Series Mini PCIe Module
Hardware Guide				Electrical and Reliability Features
	Parameter	Description	Minimum Value		Maximum Value	Unit
	VIL	Logic low-level	–0.3		0.35 x VDD_PX	V
		input voltage
	VOH	Logic high-level	VDD_PX–0.45		VDD_PX	V
		output voltage
	VOL	Logic low-level	0		0.45	V
		output voltage

5.6 Power Supply Features

5.6.1Input Power Supply

Table‎ 5-5lists the requirements for input power of the ME909 module.

Table 5-5Requirements for input power for the ME909 module

Parameter	Min.	Typ.	Max.	Ripple	Unit
VCC_3V3	3.0	3.3	3.6	0.05	V

Figure 5-1Power Supply During Burst Emission

The VCC_3V3 minimum value must be guaranteed during the burst (with 2.7 A Peak in GSM 2 slot mode). So A low-dropout (LDO) regulator or switch power with current output of more than 3.5 A is strongly recommended for external power supply.

Table 5-6Requirements for input current of the ME909 module

Power	Module	Peak (GSM 2	Normal	Normal (LTE
		slot)	(WCDMA)	23dbm)
VCC_3V3	ME909	2750 mA	1100mA	1200 mA

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Issue 0.1 (2013-06-09)	Copyright © Huawei Technologies Co., Ltd.