HUAWEI MC509 CDMA LGA Module

 

Hardware Guide

Description of the Application Interfaces

Table 3-2lists the definitions of the pins on the power supply interface.

Table 3-2Definitions of the pins on the power supply interface

Pin No.

Signal Name

I/O

Description

DC Characteristics (V)

 

 

 

 

 

 

 

 

 

 

 

Min

Typical

Max

 

 

 

 

 

 

 

12, 13

VBAT

P

Pins for power

3.3

3.8

4.2

 

 

 

voltage input

 

 

 

 

 

 

 

 

 

 

48, 49, 50,

GND

-

GND

-

-

-

52, 53, 54,

 

 

 

 

 

 

56, 57, 58,

 

 

 

 

 

 

59, 106,

 

 

 

 

 

 

108, 110,

 

 

 

 

 

 

112, 114,

 

 

 

 

 

 

116

 

 

 

 

 

 

 

 

 

 

 

 

 

35

VCOIN

P

Pin for standby

1.5

3.0

3.25

 

 

 

power input of

 

 

 

 

 

 

the RTC

 

 

 

 

 

 

 

 

 

 

32

VCC_EXT1

P

Pin for external

-

2.6

-

 

 

 

power output

 

 

 

 

 

 

 

 

 

 

31

VCC_EXT2

P

Pin for external

-

1.8

-

 

 

 

power output

 

 

 

 

 

 

 

 

 

 

34

UIM_VCC

P

Power supply for

-0.3

1.8/2.85

2.1/3.15

 

 

 

UIM card

 

 

 

 

 

 

 

 

 

 

121~145

GND

-

Thermal Ground

-

-

-

 

 

 

Pad

 

 

 

 

 

 

 

 

 

 

3.3.2 VBAT Interface

When the MC509 module works normally, power is supplied through the VBAT pins and the voltage ranges from 3.3V to 4.2V (typical value: 3.8V). The 145-pin LGA provides two VBAT pins and sixteen GND pins for external power input. To ensure that the MC509 module works normally, all the pins must be used efficiently.

When the MC509 module is used for different external applications, pay special attention to the design for the power supply. When the MC509 module transmits signals at the maximum power, the transient current may reach the transient peak value of about 1.5A due to the differences in actual network environments. In this case, the VBAT voltage drops. Make sure that the voltage does not decrease below 3.3V in any case. Otherwise, exceptions such as restart of the MC509 module may occur.

A low-dropout (LDO) regulator or switch power with current output of more than 1.5A is recommended for external power supply. Furthermore, a 220uF or above energy storage capacitor is connected in parallel at the power interface of the MC509 module.

Issue 01 (2011-04-08)

Huawei Proprietary and Confidential

23

Copyright © Huawei Technologies Co., Ltd.

 

 

Page 22 Page 24
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Huawei MC509 CDMA LGA manual Vbat Interface
Page 22 Page 24

MC509 CDMA LGA specifications

The Huawei MC509 CDMA LGA (Local Gateway Access) is a versatile and efficient communication device designed for CDMA (Code Division Multiple Access) networks. It serves as a gateway that facilitates high-speed data transmission and reliable voice services in mobile communications. This device is particularly well-suited for businesses and service providers looking to enhance their CDMA infrastructure.

One of the standout features of the Huawei MC509 is its ability to support multiple user connections simultaneously. This capability allows it to handle a large volume of calls and data transfers, making it ideal for environments with heavy communication demands. The device is built with robust processing power, ensuring it can manage traffic effectively without any degradation in service quality.

In terms of technology, the Huawei MC509 is designed to seamlessly integrate with existing CDMA networks. It employs advanced signal processing techniques to optimize call quality and data throughput. Additionally, the device supports a variety of bandwidth options, which ensures flexibility in deployment based on specific network requirements.

The MC509 also boasts a modular design, allowing for easy upgrades and scalability. As network demands evolve, service providers can expand the functionality of the device by adding new modules without the need for significant hardware changes. This future-proofing aspect makes it a smart investment for organizations aiming to grow their communication capabilities over time.

Security is another critical characteristic of the Huawei MC509. It features comprehensive security protocols to ensure that voice and data transmissions remain private and secure from unauthorized access. This focus on security makes the device suitable for enterprises that handle sensitive information.

Moreover, the Huawei MC509 has been engineered for energy efficiency. Its smart power management capabilities not only reduce operational costs but also contribute to a greener technology solution. This aspect is increasingly important in today’s environmentally conscious market.

Overall, the Huawei MC509 CDMA LGA is a powerful and adaptable communication solution. With its superior call handling capacity, integration capabilities, modular design, security features, and energy efficiency, it stands out as an essential tool for enhancing CDMA network infrastructure. Organizations that invest in this device will benefit from improved communication services, ultimately leading to increased productivity and customer satisfaction.
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