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| NGA-686 Datasheet, PDF (4/5 Pages) List of Unclassifed Manufacturers – DC-6000 MHZ CASCADABLE GAAS HBT MMIC AMPLIFIER | |||
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OBSOLETPEreliminary
NGA-686 DC-6.0 GHz 5.9V GaAs HBT
Basic Application Circuit
VS
RBIAS
1 uF 1000
pF
CD
RF in
4
1
3
NGA-686
CB
2
LC
CB
RF out
VS
1 uF
RBIAS
1000 pF
CD
LC
CB
CB
Application Circuit Element Values
Reference
Designator 500
Frequency (Mhz)
850
1950
2400
3500
CB
220 pF 100 pF 68 pF 56 pF 39 pF
CD
100 pF 68 pF 22 pF 22 pF 15 pF
LC
68 nH 33 nH 22 nH 18 nH 15 nH
Recommended Bias Resistor Values for ID=80mA
RBIAS=( VS-VD ) / ID
Supply Voltage(VS) 8 V 9 V 10 V 12 V
RBIAS
27
39
51
75
Note: RBIAS provides DC bias stability over temperature.
Mounting Instructions
1. Use a large ground pad area under device pins 2
and 4 with many plated through-holes as shown.
2. We recommend 1 or 2 ounce copper. Measurements
for this data sheet were made on a 31 mil thick FR-4
board with 1 ounce copper on both sides.
Part Identification Marking
The part will be marked with an ÂN6Â designator on
the top surface of the package.
3
4 N6
2
1
Pin # Function
Description
1
RF IN RF input pin. This pin requires the use
of an external DC blocking capacitor
chosen for the frequency of operation.
2, 4 GND Connection to ground. Use via holes
for best performance to reduce lead
inductance as close to ground leads as
possible.
3 RF OUT/ RF output and bias pin. DC voltage is
BIAS present on this pin, therefore a DC
blocking capacitor is necessary for
proper operation.
Caution: ESD sensitive
Appropriate precautions in handling, packaging and
testing devices must be observed.
Part Number Ordering Information
Part Number
Reel Size
Devices/Reel
NGA-686
7"
1000
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
4
http://www.sirenza.com
EDS-101106 Rev OBS
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