RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS150205

For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com.

The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of

third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended

application circuitry and specifications at any time without prior notice.

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RFSA3715

Evaluation Board Jumper Programming

Jumpers

Connector

Signal

Position

U1 Connection

Comment

S1

P3

Logic

Voltage

0

VDD (From P6)

1

VIO (From P5)

S2

PBar/S

0

GND

Parallel Mode

1

U1_VDD

Serial Mode

S3

AO

0

GND

External Address

1

U1_VDD

S4

A1

0

GND

External Address

1

U1_VDD

S5

A2

0

GND

External Address

1

U1_VDD

S6

P4

LE

OPEN

LE

All Other Modes

INSTALLED

LE (From P5 Pin 3)

Serial Mode Using P5

Evaluation Board Programming Using USB Interface

Serial Addressable Mode

All programming jumpers on the evaluation board are set to the default values indicated in the table. Refer to the

Control Bit Generator (CBG) Software Reference Manual for detailed instructions on how to setup the software for use.

Apply

the supply voltage to P6. Select ‘RFSA3715’ from the RFMD parts list of the CBG user interface. Set the

attenuation value using the CBG user interface. The attenuator is set to the desired state and measurements can be

taken. Note that the external address

bits must all be set to ‘0’ when using the USB interface as the CGB software

does not have the capability to set the external address in the serial data stream at this time.

Latched Parallel Mode

Evaluation board programming jumper S2 is set to ‘0’. All other programming jumpers are not required and can be set

to any position. Refer to the Control Bit Generator (CBG) Software Reference Manual for detailed instructions on how

to setup the software for use. Apply the supply voltage to P6. Select ‘RFSA3715-P’ from the RFMD parts list of the

CBG user interface. Set the attenuation value using the CBG user interface. The attenuator is set to the desired state

and measurements can be taken.