For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

10

10 - 6

HMC666LP4 / 666LP4E

v02.1010

BiCMOS MMIC MIXER W/ INTEGRATED

LO AMPLIFIER, 3.1 - 3.9 GHz

Pin Number

Function

Description

Interface Schematic

1, 6, 7, 11 - 14,

18, 20, 23

N/C

No connection. These pins may be connected to RF

ground. Performance will not be affected.

2, 5, 15, 17

GND

Package bottom must be

connected to RF/DC ground.

3

RF

This pin is matched single-ended 50 Ohm and DC

shorted to ground through a balun.

4

TAP

Short to ground with a zero ohm resistor

close to the IC.

8, 10, 24

Vcc1, Vcc2,

Vcc3

Power supply voltage. See application circuit

for required external components.

9

LO_BIAS

Adjust the LO buffer current through an external

resistor. See application circuit for required external

components.

16

LO

This pin is matched single-ended 50 Ohm and DC

shorted to ground through a balun.

19

G_BIAS

External optional bias. See application circuit

for required external components. Apply +2.5V for

nominal performance.

21, 22

IFN, IFP

Differential IF input / output pins matched to differential

50 Ohms. For applications not requiring operation to

DC an off chip DC blocking capacitor should be used.

Pin Descriptions