HMC622LP4 Datasheet, PDF (6/10 Pages) Hittite Microwave Corporation – GaAs MMIC MIXER w/ INTEGRATED IF & LO AMPLIFIER, 1.8 - 3.9 GHz

v01.0508
HMC622LP4 / 622LP4E
GaAs MMIC MIXER w/ INTEGRATED
IF & LO AMPLIFIER, 1.8 - 3.9 GHz
Pin Descriptions (Continued)
Pin Number
7
Function
IFIN
Description
This pin is matched to 50 ohms with a 51nH inductor to
ground. See Application Circuit.
AC ground. An external capacitor of 0.01 μF to ground
9
CAP
is required for low frequency bypassing. See applica-
tion circuit for further details.
This pin is DC coupled. For applications not requiring
operation to DC, this port should be DC blocked exter-
nally using a series capacitor whose value has been
10
MIXIF
chosen to pass the necessary IF frequency range. For
operation to DC, this pin must not source/sink more
than 18 mA of current or part non-function and possible
part failure will result.
12
IFOUT
This pin is AC coupled and
matched to 50 Ohms.
Power supply for IF amplifier. Choke
13
VddIF
inductor and bypass capacitor are required.
See application circuit.
Interface Schematic
9
This pin is DC coupled and matched to 50 Ohms.
16
MIXLO
An off chip DC blocking capacitor is required.
17
GND
Backside of package has exposed metal ground
paddle that must also be connected to ground.
Power supply and RF Output of the LO
18
BIAS
amplifier. Three external bypass capacitors
are recommended for optimum performance,
as illustrated in the application circuit.
This pin is DC coupled and matched to 50 Ohms.
21
LO
An off chip DC blocking capacitor is required.
See application circuit.
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20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com
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