HMC571 Datasheet, PDF (9/11 Pages) Hittite Microwave Corporation – GaAs MMIC I/Q DOWNCONVERTER 21 - 25 GHz

v03.0808
HMC571
GaAs MMIC I/Q DOWNCONVERTER
21 - 25 GHz
Pad Descriptions
Pad Number
Function
1
VddRF
2
VddLO2
3
VddLO
4
LO
5
IF1
6
IF2
7
RF
GND
Description
Power supply for RF LNA.
External RF bypass capacitors are required.
Power supply for second stage of LO amplifier.
External RF bypass capacitors are required.
Power supply for first stage of LO amplifier.
External RF bypass capacitors are required.
This pad is AC coupled
and matched to 50 Ohms.
This pad is DC coupled for applications not requir-
ing operation to DC. This port should be DC blocked
externally using a series capacitor whose value has
been chosen to pass the necessary frequency range.
For operation to DC, this pad must not source /sink more
than 3 mA of current or die non - function and possible
die failure will result.
This pad is AC coupled
and matched to 50 Ohms.
The backside of the die must be
connected to RF/DC ground.
Interface Schematic
3
Typical Application
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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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