RF5117C
Pin
1
Function
RF IN
Description
RF input. Matching network with DC block required, see evaluation board
schematic for details.
Interface Schematic
VCC
Bond Wire
Inductance
RF IN
BIAS
2
3
BIAS GND1
PWR SEN
Ground for first stage bias circuit. Not connected.
The PWR SEN and PWR REF pins can be used in conjunction with an exter-
nal feedback path to provide an RF power control function for the
RF5117C. The power control function is based on sampling the RF drive to
the final stage of the RF5117C.
See pin 5.
RF OUT
PWR SEN
PWR REF
BIAS
4
5
PWR REF
VREG1
Same as pin 3.
This pin requires a regulated supply to maintain nominal bias current.
See pin 3.
VREG1
BIAS
VREG2
BIAS
GND1
BIAS
GND2
6
7
8
9
10
VREG2
BIAS GND2
NC
NC
RF OUT
Same as pin 5.
Ground for second stage bias circuit. For best performance connect to
ground with a 10nH inductor.
Not connected.
Not connected.
RF output and bias for the output stage. The power supply for the output
transistor needs to be supplied to this pin. This can be done through a
quarter-wave length microstrip line that is RF grounded at the other end, or
through an RF inductor that supports the required DC currents.
Same as pin 10.
Same as pin 10.
See pin 5.
See pin 5.
RF OUT
BIAS
11
12
13
RF OUT
RF OUT
VCC
See pin 10.
See pin 10.
14
15
16
Pkg
Base
VCC
NC
NC
GND
Interstage match and bias for first stage output. Connect interstage match- See pin 1.
ing capacitor to this pad with a short trace. Connect low-frequency bypass
capacitors to this pin with a long trace. See evaluation board layout for
details.
Same as pin 13.
See pin 1.
Not connected.
Not connected.
Ground connection. The backside of the package should be connected to
the ground plane through a short path, i.e., vias under the device will be
required.
Rev A6 DS071018
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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RFMD [ RF MICRO DEVICES ]
