MICRF102
Micrel
MICRF102
2
September 2002
Pin Description
Pin Number
Pin Name
Pin Function
1
PC
Power Control Input. The voltage at this pin should be set between 0.15V to
0.35V for normal operation.
2
VDD
Positive power supply input for the IC.
3
VSS
This pin is the ground return for the IC. A power supply bypass capacitor
connected from VDD to VSS should have the shortest possible path.
4
REFOSC
This is the timing reference frequency which is the transmit frequency
divided by 32. Connect a crystal (mode dependent) between this pin and
VSS, or drive the input with an AC coupled 0.5Vpp input clock. See
Refer-
ence Oscillator Section in this data sheet
5
STBY
Input for transmitter stand by control pin is pulled to VDD for transmit
operation and VSS for stand-by mode.
6
ANTM
Negative RF power output to drive the low side of the transmit loop antenna
7
ANTP
Positive RF power output to drive the high side of the transmit loop antenna
8
ASK
Amplitude Shift Key modulation data input pin. For CW operation, connect
this pin to VDD
Pin Configuration
1
PC
VDD
VSS
REFOSC
8
ASK
ANTP
ANTM
STBY
7
6
5
2
3
4
MICRF102BM
