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11

11 - 6

TL1

TL2

TL3

Impedance

50 Ohm

50 Ohm

50 Ohm

Length

0.038”

0.231”

0.1”

Note: C3 should be located <0.020” from Pin 8 (Vcc)

Note: C2 Should be located < 0.020” from L1

Pin Number

Function

Description

Interface Schematic

1Vpd

Power Control Pin. For proper control bias, this pin should be con-

nected to 5V through a series resistor of 130 Ohms. A higher voltage is

not recommended. For lower idle current, this voltage can be reduced.

2, 4, 7

GND

Ground: Backside of package has exposed metal ground paddle that

must be connected to ground thru a short path. Vias under the device

are required.

3RFIN

This pin is AC coupled

and matched to 50 Ohms.

5, 6

RFOUT

RF output and bias for the output stage. The power supply for the

output device needs to be supplied to these pins.

8Vcc

Power supply voltage for the first amplifier stage. An external bypass

capacitor of 330 pF is required. This capacitor should be placed as

close to the device as possible.

Pin Descriptions

Application Circuit

HMC327MS8G / 327MS8GE

v05.0509

GaAs InGaP HBT MMIC

1/2 WATT POWER AMPLIFIER, 3 - 4 GHz