Texas Instruments LM8335 Evaluation Module LM8335EVM LM8335EVM 数据表
产品代码
LM8335EVM
VDDIO
VDDIO
1.8V
1
2
3
1
2
3
3.3V
LM8335 EVM Setup
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.
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.
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.
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.
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
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.
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.
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.
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
Copyright © 2012–2013, Texas Instruments Incorporated