For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D

7

HMC409LP4E

v04.1217

GaAs InGaP HBT 1 WATT

POWER AMPLIFIER, 3.3 - 3.8 GHz

pin number

function

Description

interface schematic

1-3, 5, 6, 8, 10 -14,

18, 19, 21, 22, 24

n/C

no connection required. These pins may be connected to

rf/DC ground without affecting performance.

4

rfin

This pin is AC coupled

and matched to 50 ohms.

7

Vpd

power control pin. for maximum power, this pin should

be connected to 5V thru a 56 Ω resistor. A high-voltage or

small resistor is not recommended for lower idle current.

This voltage can be reduced or the resistor increased.

9

Vbias

DC power supply pin for bias circuitry

15, 16, 17

rfoUT

rf output and DC bias for the output stage.

20

Vcc2

power supply voltage for the second amplifier stage.

external bypass capacitors and pull up choke are required

as shown in the application schematic.

23

Vcc1

power supply voltage for the first amplifier stage. external

bypass capacitors are required as shown in the application

schematic.

GnD

Ground: Backside of package has exposed metal ground

slug that must be connected to ground thru a short path.

Vias under the device are required.

Pin Descriptions