HMC666LP4 / 666LP4E
v02.1010
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 3.1 - 3.9 GHz
Pin Descriptions
Pin Number
Function
Description
Interface Schematic
1, 6, 7, 11 - 14,
18, 20, 23
No connection. These pins may be connected to RF
ground. Performance will not be affected.
N/C
GND
RF
Package bottom must be
connected to RF/DC ground.
2, 5, 15, 17
3
10
This pin is matched single-ended 50 Ohm and DC
shorted to ground through a balun.
Short to ground with a zero ohm resistor
close to the IC.
4
TAP
Vcc1, Vcc2,
Vcc3
Power supply voltage. See application circuit
for required external components.
8, 10, 24
Adjust the LO buffer current through an external
resistor. See application circuit for required external
components.
9
LO_BIAS
This pin is matched single-ended 50 Ohm and DC
shorted to ground through a balun.
16
19
LO
External optional bias. See application circuit
for required external components. Apply +2.5V for
nominal performance.
G_BIAS
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.
21, 22
IFN, IFP
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 - 6