RF2311 RF Micro Devices, RF2311 Datasheet - Page 3

• Manufacturer Part Number: RF2311
• Description: GENERAL PURPOSE AMPLIFIER
• Manufacturer: RF Micro Devices

Rev C3 010228
Pin
1
2
3
4
5
6
7
8
Function
RF OUT
RF IN
GND
GND
GND
GND
GND
VCC
Description
Power supply pin. An external bypass capacitor is recommended. The
total supply current is shared between this pin and pin 8 (through the
inductor).
Ground connection. Keep traces physically short and connect immedi-
ately to ground plane for best performance.
Same as pin 2.
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 2.
Same as pin 2.
Same as pin 2.
RF output pin. Because DC is present on this pin, a DC blocking capac-
itor, suitable for the frequency of operation, should be used in most
applications. The DC voltage on this pin is typically 2.4V. Alternatively,
power supply may be connected to this pin. A series resistor and induc-
tor should be used, in which case the L should be large enough to
present a high impedance at the lowest operating frequency, and the R
should be (V
8mA and 20mA).
CC
- 2.4) / I, where I is the desired device current (between
Interface Schematic
See pin 8.
See pin 8.
RF IN
RF2311
VCC
RF OUT
4-83
4