HMC621LP4 Datasheet, PDF (6/8 Pages) Hittite Microwave Corporation – RFIC DOWNCONVERTER SMT, 0.9 - 1.6 GHz

HMC621LP4 / 621LP4E
v01.0708
RFIC DOWNCONVERTER SMT, 0.9 - 1.6 GHz
Pin Descriptions
Pin Number
Function
1
VddRF
Description
Power Supply Voltage for the RF amplifier. Choke
inductor and bypass capacitors are required. See
application circuit.
This pin is used to set the DC current of the RF
2
RES
amplifier by selection of external bias resistor. See
application circuit and bias resistor value table.
3
4, 6 - 8, 10,
11, 13, 16,
18 - 20, 23, 24
5
RFIN
N/C
GND
9
LOIN
This pin is matched to 50 Ohms.
No connection necessary. These pins
may be connected to RF/DC Ground
Backside of package has exposed metal ground
paddle that must also be connected to ground.
This pin is AC coupled
and matched to 50 Ohms.
Interface Schematic
9
12
VddLO
Power supply for LO amplifier.
An external RF bypass capacitor is required.
This pin is DC coupled. For applications not requiring
operation to DC this port should be DC blocked
14
MIXIF
externally using a series capacitor. Choose value of
capacitor to pass IF frequency desired. For operation to
DC, this pin must not sink/source more than 40 mA of
current or failure may result.
15
IFIN
This pin is DC coupled.
An off chip DC blocking capacitor is required.
17
IFOUT
IF output and DC Bias (Vcc) for the output stage.
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]
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