Revision DS20160304

- 5 of 8 -

Disclaimer: Subject to change without notice

© 2016 RF Micro Devices, Inc.

www.rfmd.com / www.qorvo.com

RFPD3580

RFMD + TriQuint = Qorvo

Current Adjustment Using Hybrid Pin 4

The RFPD3580 can be operated over a wide range of current to provide maximum required performance with minimum current

consumption. A single external resistor connected between pin 4 and GND allows variation of current between 530mA and 130mA

(typ.). Within the recommended range of current between 530mA and 430mA gain (S21) change is less than 0.2dB and noise

figure change is less than 0.1dB. If pin 4 is not connected the device operates at maximum current, see table below.

Examples of connecting pin 4:

V+

INPUT

OUTPUT

Resistor,

fixed

1

2, 3, 7, 8

4

9

5

V+

INPUT

OUTPUT

Resistor,

variable,

50k range,

or VCR

1

2, 3, 7, 8

4

9

5

130

180

230

280

330

380

430

480

530

580

0

10

20

30

40

50

R(Pin4) [kOhm]

RFPD3580 current vs. external resistor

Device current [mA],

typical

External resistor [Ω]

530

Open

520

50k

500

18k

475

9k3

425

4k3

400

3k9

350

1k9

250

700

130

0 (short)

75Ω