RF2336PCK RFMD, RF2336PCK Datasheet - Page 3

• Manufacturer Part Number: RF2336PCK
• Description: KIT EVAL FOR RF2336
• Manufacturer: RFMD
• Type: Amplifierr

Specifications of RF2336PCK

• Contents: Board
• For Use With/related Products: RF2336
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 689-1039

Rev A10 030415
Pin
1
2
3
4
5
Function
RF OUT
RF IN
GND
GND
GND
RF IN
J1
P1-1
P1
1
2
3
50 Ω μstrip
Description
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
Same as pin 1.
RF input pin. This pin is NOT internally DC-blocked. A DC-blocking
capacitor, suitable for the frequency of operation, should be used in
most applications. DC coupling of the input is not allowed, because this
will override the internal feedback loop and cause temperature instabil-
ity.
Same as pin 1.
RF output and bias pin. Biasing is accomplished with an external series
resistor and choke inductor to V
DC current into this pin to a desired level. The resistor value is deter-
mined by the following equation:
Care should also be taken in the resistor selection to ensure that the
current into the part never exceeds 48mA over the planned oper-
ating temperature. This means that a resistor between the supply and
this pin is always required, even if a supply near 3.5V is available, to
provide DC feedback to prevent thermal runaway. Because DC is
present on this pin, a DC blocking capacitor, suitable for the frequency
of operation, should be used in most applications. The supply side of
the bias network should also be well bypassed.
VCC
GND
NC
(Download Bill of Materials from www.rfmd.com.)
Evaluation Board Schematic
100 pF
C1
R
=
1
2
3
(
------------------------------------------------------ -
V
SUPPLY
CC
. The resistor is selected to set the
I
CC
–
V
DEVICE
5
4
233X410-
)
100 nH
22 Ω
100 pF
R1
L1
C2
100 pF
50 Ω μstrip
C3
Interface Schematic
RF IN
1 μF
C4
RF2336
VCC
P1-1
RF OUT
J2
RF OUT
4-285