Huawei ME909u-521 - Application Block Diagram

HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
Overall Description
Issue 05 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
12
2.4 Application Block Diagram
Figure 2-2 Application block diagram of the ME909u-521 module
UART Interface:
The module supports 3 UART interfaces. Two are 4-wire
UARTs. One is 2-wire UART, which is only for debugging.
USB Interface:
The USB interface supports USB 2.0 high speed standard.
USIM Interface:
The USIM interface provides the interface for a USIM card.
External Power
Supply:
DC 3.8 V is recommended.
Audio Interface:
The module supports one PCM interface.
RF Pad:
RF antenna interface.
Tunable ANT
CTRL:
Since LTE bands cover wide frequency, tunable ANT CTRL
helps customers for tunable antenna design. The firmware
with this feature is in plan.
ADC:
Reserved for intelligent module in future.
SPI Interface:
Reserved for intelligent module in future.
SDIO Interface:
Reserved for intelligent module in future.
HSIC Interface:
Reserved for intelligent module in future.
I2C Interface:
Reserved for intelligent module in future.