HMC668LP3 Datasheet, PDF (8/10 Pages) Hittite Microwave Corporation – GaAs PHEMT MMIC LNA w/ FAILSAFE BYPASS MODE, 700 - 1200 MHz

Pin Descriptions
Pin Number
Function
1, 2, 4, 5, 8, 9,
11, 12, 13, 15
N/C
HMC668LP3 / 668LP3E
v03.0610
GaAs PHEMT MMIC LNA w/
FAILSAFE BYPASS MODE, 700 - 1200 MHz
7
Description
No connection required. These pins may be
connected to RF GND. Performance will not
be affected.
Interface Schematic
3
RFIN
This pin is DC coupled.
Off-chip DC blocking capacitor required.
6
ACG
AC Ground. Attach bypass capacitor per
application circuit.
7
RES
External resistor pin for current control. See
table for external resistor value vs. bias current data.
10
RFOUT
14
Vdd
This pin is matched to 50 Ohms
Power Supply voltage pin. External bypass
capacitors required.
Control voltage pin for LNA / Bypass
16
Vctl
Modes. Setting voltage equal to VDD enables LNA
Mode. External Bypass capacitor required.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]
7-8