RF2442PCBA-H 데이터 시트보기 (PDF) - RF Micro Devices
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RF2442PCBA-H Datasheet PDF : 12 Pages
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RF2442
Pin Function Description
Interface Schematic
1
VCC1
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-
VCC1
150 Ω
VCC2
ately to ground plane. This pin connects to pin 8 through a 150Ω resistor.
BIAS
This allows for simple biasing of the collector at pin 6. Refer to Application
Schematics 1 and 3.
2
GND1
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
3
RF IN
RF input pin. This pin is internally DC-blocked and matched to 50Ω for fre-
quencies above 1GHz. When using below 1GHz, it is recommended that
To bias circuits
this pin be matched with series inductance to series-resonate out the inter-
LNA OUT
nal blocking capacitor. Refer to Application Schematics 1 and 2.
LNA IN
4
GND2
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
5
NC
No connection. This pin is typically left unconnected or grounded.
6
RF OUT
LNA Output pin. This pin is an open-collector output. It must be biased to See pin 3.
either VCC or pin 8 through a choke or matching inductor. This pin is typi-
cally matched to 50Ω with a shunt bias/matching inductor and series
blocking/matching capacitor. Refer to application schematics.
7
NC
No connection. This pin is typically left unconnected or grounded.
8
VCC2
Optional power supply connection for biasing pin 6. This pin connects to See pin 1.
pin 1 through a 150Ω 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.
Package Drawing
0.192
± 0.008
0.012
0.006
± 0.003
-A-
0.118
± 0.004 sq
6° MAX
0° MIN
0.021
± 0.004
0.0256
0.034
0.006
± 0.002
Shaded lead is pin 1.
4 of 12
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Rev B8 DS080128
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