Huawei MC509 CDMA LGA Audio Interface, ESD Protection for the UIM Card Interface, Analogue Audio

Models: MC509 CDMA LGA

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HUAWEI MC509 CDMA LGA Module

 

Hardware Guide

Description of the Application Interfaces

To meet the requirements of ETSI TS 102 230protocols and electromagnetic compatibility (EMC) authentication, the UIM card socket should be placed near the LGA interface (it is recommended that the PCB circuit connecting the LGA interface and the UIM card socket not exceed 100mm), because a long circuit may lead to wave distortion, thus affecting signal quality.

It is recommended that the user should wrap the area adjacent to the UIM_CLK and UIM_DATA signal wires with a ground wire. The GND pin of the UIM card socket and the GND pin of the UIM card must be well connected to the power GND pin supplying power to the MC509 module.

A 0.1μF capacitor is placed between the UIM_VCC and GND pins in a parallel manner. Three 10pF or 33pF capacitors are placed between the UIM_DATA and GND pins, the UIM_RST and GND pins, and the UIM_CLK and GND pins in parallel to filter interference from RF signals.

It is not recommended that pull the UIM_DATA pin up during design as a 15000- ohm resistor is used to connect the UIM_DATA pin to the UIM_VCC.

3.7.3ESD Protection for the UIM Card Interface

It is recommended to take electrostatic discharge (ESD) protection measures near the UIM card socket. Figure 3-11shows ESD protection circuit of the UIM card, in which the transient voltage suppressor (TVS) diode is placed as close as possible to the UIM card socket, and the GND pin of the ESD protection component is well connected to the power GND pin that supplies power to the MC509 module.

Figure 3-11ESD protection circuit on the UIM card

3.8 Audio Interface

3.8.1 Analogue Audio

The MC509 provides two audio I/O channels (Data only doesn’t support the voice function).

Issue 01 (2011-04-08)

Huawei Proprietary and Confidential

37

Copyright © Huawei Technologies Co., Ltd.

 

 

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Huawei MC509 CDMA LGA manual Audio Interface, ESD Protection for the UIM Card Interface, Analogue Audio

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.