Huawei MU609 - Output Power Supply Interface; Signal Control Interface; Overview

HUAWEI MU609 HSPA LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 04 (2016-12-12)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
25
Figure 3-2 Recommended power circuit of MU609 module
When the system power restarts, a discharge circuit is recommended to make sure
the power voltage drops below 1.9 V for 1s at least.
3.3.3 Output Power Supply Interface
Output power supply interface is VCC_EXT1.
Through the output power supply interface, the MU609 module can supply 1.8 V
power externally with an output current of 10 mA (typical value) for external level
conversion or other applications.
If the MU609 module is in sleep mode, the output power supply interface is in the low
power consumption state (< 500 μA). If the MU609 module is in power down mode,
the output power supply is in the disabled state.
3.4 Signal Control Interface
3.4.1 Overview
The signal control part of the interface in the MU609 module consists of the following:

Power-on/off (POWER_ON_OFF) pin

System reset (RESIN_N) pin

WAKEUP_IN Signal (WAKEUP_IN) pin

WAKEUP_OUT Signal (WAKEUP_OUT) pin

SLEEP_STATUS Signal (SLEEP_STATUS) pin

LED signal (LED_MODE) pin
Table 3-3 lists the pins on the signal control interface.
Table 3-3 Definitions of the pins on the signal control interface
Pin
No.
Pin Name
Pad
Type
Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
81
POWER_O
I
Pin for controlling power-on and
V
IH
1.2
1.8
2.1