【免费】MIPI控制板LM8335EVM资源-CSDN文库

需积分: 0 164 浏览量 2023-11-07 11:11:31 上传评论收藏 4.88MB PDF 举报

资源推荐

资源详情

资源评论

User's Guide

SNVU189A–October 2012–Revised May 2013

AN-2298 LM8335 Evaluation Module (EVM)

1 Introduction

The Texas Instruments LM8335EVM evaluation module (EVM), Figure 1, helps designers evaluate the

operation and performance of the LM8335 MIPI RFFE to General Purpose Output (GPO) Expander. The

EVM contains a USB to MIPI RFFE convertor (MSP430F5510), three LDOs, a 74LVC8T245 buffer for

self-test, and the LM8335 (see Table 1).

Table 1. Device and Package Configurations

Converter IC Package

U1 LM8335 DSBGA-16

U2 MSP430F5510 48VQFN

U3 74LVC8T245PWRE4 PW024

U4 LP2980AIM5-3.3/NOPB SOT23

U5 LP5990

DSBGA-4

U6 LP5990

Figure 1. LM8335EVM

All trademarks are the property of their respective owners.

1

SNVU189A–October 2012–Revised May 2013 AN-2298 LM8335 Evaluation Module (EVM)

Submit Documentation Feedback

Copyright © 2012–2013, Texas Instruments Incorporated

VDDIO

VDDIO

1.8V

1

2

3

1

2

3

3.3V

LM8335 EVM Setup

www.ti.com

2 LM8335 EVM Setup

This section describes the jumpers and connectors on the EVM as well and how to properly connect, set

up and test the LM8335EVM Evaluation Board.

2.1 Input/Output Connector Description

• J1 – Input is the USB input connector. This connector provides USB data communication, 5V Power

In, and ground (GND) connection.

• J2 – Input/Output is the MIPI RFFE input/output and GPO output connector. This connector provides

MIPI RFFE communication to an external device and access to the LM8335 GPO outputs.

• J4 – Input/Output is the connector used to program the MSP430. This connector uses the standard

interface for programming the MSP430 using the MSP-FET430UIF Debug-Interface Tool.

• VDDIO2 – VDDIO Select is the jumper used to select the VDDIO voltage used by the LM8335.

Figure 2. LPM Jumper Settings

2.2 Setup

For proper operation of the LM8335, the VDDIO2 jumper should be properly configured. The

recommended setting, using shorting blocks: VDDIO to 1.8V

2.3 Operation

The LM8335EVM evaluation board is powered by the USB interface, no external supply is required.

Connect the micro-USB type B cable to the LM8335EVM and to the PC. Launch the LM8335EVM GUI to

access the features on the evaluation board.

3 Board Layout

The LM8335 GPO output pins can be accessed via the J2 connector. Additionally the LM8335 EVM can

be used to communicate with additional devices that comply with the MIPI RFFE specification using the

20-pin connector J2. Note that the cable required to communicate with an external MIPI RFFE device is

not included. The connector J4 is provided only for initial programming of the MSP430 and should not be

used by the customer.

4 LM8335 Evaluation Board

The LM8335EVM supports the MIPI RFFE register 0 write, register write, register read, extended register

write, extended register read, extended register write long and extended register read long command

sequences at 400 Khz SCLK rate.

2

AN-2298 LM8335 Evaluation Module (EVM) SNVU189A–October 2012–Revised May 2013

Submit Documentation Feedback

Copyright © 2012–2013, Texas Instruments Incorporated

剩余16页未读，继续阅读

内容反馈

weixin_43853261

粉丝: 1
资源: 2

最新资源

资源上传下载、课程学习等过程中有任何疑问或建议，欢迎提出宝贵意见哦~我们会及时处理！点击此处反馈

feedback-tip