HMC541LP3_08 Datasheet, PDF (5/6 Pages) Hittite Microwave Corporation – 10 dB GaAs MMIC 1-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 5 GHz

HMC541LP3 / 541LP3E
v01.1005
10 dB GaAs MMIC 1-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5 GHz
5
Pin Descriptions
Pin Number
Function
1
Vdd
Description
Supply Voltage.
Interface Schematic
2, 11
RF1, RF2
This pin is DC coupled and matched to 50 Ohm.
Blocking capacitors are required.
Select value based on lowest frequency of operation.
3, 4, 6, 7,
9, 10, 12,
13, 15, 16
5, 8
N/C
ACG1, ACG2
These pins should be connected to PCB RF ground to
maximize performance.
External capacitor to ground is required. Select value for
lowest frequency of operation. Place capacitor as close
to pins as possible.
14
V1
See truth table and control voltage table.
GND
Application Circuit
Package bottom has an exposed metal paddle that must be
connected to RF Ground.
Recommended Component Values
C1 - C3
1,000 pF ± 10%
C4, C5
330 pF ± 10%
5 - 180
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20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com