Revision DS20160112

- 12 of 17 -

Disclaimer: Subject to change without notice

© 2015 RF Micro Devices, Inc.

www.rfmd.com / www.qorvo.com

QPC6713

RFMD + TriQuint = Qorvo

Pin Names and Descriptions

Jumpers

Connector

Signal

Position

U1 Connection

Comment

S1

P3

Logic

Voltage

0

VDD (From P1)

1

VIO (From P4)

S2

A0

0

GND

External Address

1

U1_VDD

S3

A1

0

GND

External Address

1

U1_VDD

S4

A2

0

GND

External Address

1

U1_VDD

Note: Default jumper settings are BOLD

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 voltag

e to P1. Select ‘QPC6713’ 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 measurement 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.

Evaluation Board Programming Using External Bus

Serial Addressable Mode

The configuration allows the user to control the attenuator through the P4 connector using an external harness. Remove the

USB interface board if it is currently installed on the evaluation board. Connect a user-supplied harness to the P4 connector.

Note that the top row of P4 contains the serial bus signals and the bottom row is ground. Programming jumper S1 is set to

‘0’. External address jumpers S2 through S4 can be set to any value desired by the user. Apply the supply voltage P1. Send

the appropriate signals onto the serial bus lines in accordance with the Serial Mode Timing Diagram. The attenuator is set to

the desired state and measurements can be taken.

Default Power-up State

The default attenuation state is maximum (31.75dB) when supply voltage is applied to the attenuator. The LE signal must

be held to logic ‘0’ during power up.