4 of 12
RF2442
Rev B8 DS080128
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Package Drawing
Pin
Function
Description
Interface Schematic
1VCC1
Supply voltage for the LNA. External RF and IF bypassing is required. The
trace length between the pin and the bypass capacitors should be mini-
mized. The ground side of the bypass capacitors should connect immedi-
ately to ground plane. This pin connects to pin 8 through a 150
Ω resistor.
This allows for simple biasing of the collector at pin 6. Refer to Application
Schematics 1 and 3.
2GND1
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
3RF IN
RF input pin. This pin is internally DC-blocked and matched to 50
Ω for fre-
quencies above 1GHz. When using below 1GHz, it is recommended that
this pin be matched with series inductance to series-resonate out the inter-
nal blocking capacitor. Refer to Application Schematics 1 and 2.
4GND2
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
5NC
No connection. This pin is typically left unconnected or grounded.
6RF OUT
LNA Output pin. This pin is an open-collector output. It must be biased to
either VCC or pin 8 through a choke or matching inductor. This pin is typi-
cally matched to 50
Ω with a shunt bias/matching inductor and series
blocking/matching capacitor. Refer to application schematics.
See pin 3.
7NC
No connection. This pin is typically left unconnected or grounded.
8VCC2
Optional power supply connection for biasing pin 6. This pin connects to
pin 1 through a 150
Ω resistor. This allows for simple biasing of the collec-
tor at pin 6. When used, this pin should be RF bypassed. Refer to Applica-
tion Schematics 1 and 3.
See pin 1.
150
Ω
VCC1
VCC2
BIAS
LNA OUT
To bias circuits
LNA IN
Shaded lead is pin 1.
0.192
± 0.008
0.118
± 0.004 sq
0.0256
0.012
6° MAX
0° MIN
0.021
± 0.004
0.006
± 0.002
0.034
0.006
± 0.003
-A-
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
