HMC474MP86
/
474MP86E
v01.0906
SiGe HBT GAIN BLOCK
MMIC AMPLIFIER, DC - 6 GHz
Pin Descriptions
9
DRIVER & GAIN BLOCK AMPLIFIERS - SMT
Pin Number
Function
Description
Interface Schematic
1
RFIN
This pin is DC coupled.
An off chip DC blocking capacitor is required.
3
RFOUT
RF output and DC Bias (Vcc) for the output stage.
2, 4
GND
These pins must be connected to RF/DC ground.
Application Circuit
Recommended Bias Resistor Values
for Icc= 25 mA, Rbias= (Vs - Vcc) / Icc
Supply Voltage (Vs)
R
BIAS
V
ALUE
R
BIAS
P
OWER
R
ATING
3V
30 Ω
1/8 W
5V
110 Ω
1/8 W
6V
150 Ω
1/4 W
8V
240 Ω
1/2 W
10V
300 Ω
1/2 W
Note:
1. External blocking capacitors are required on
RFIN and RFOUT.
2. R
BIAS
provides DC bias stability over temperature.
Recommended Component Values for Key Application Frequencies
Frequency (MHz)
Component
50
L1
C1, C2
270 nH
0.01 μF
900
56 nH
100 pF
1900
18 nH
100 pF
2200
18 nH
100 pF
2400
15 nH
100 pF
3500
8.2 nH
100 pF
5200
6.8 nH
100 pF
5500
3.3 nH
100 pF
9 - 64
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HITTITE [ HITTITE MICROWAVE CORPORATION ]
