OG_STD-302S-429M_v11e
Circuit Design, Inc.
6
OPERATION GUIDE
PIN DESCRIPTION
Pin name
I/O
Description
Equivalent circuit
RF
I/O
RF input terminal
Antenna impedance nominal 50
Ω
GND
I
GROUND terminal
The GND pins and the feet of the
shield case should be connected to a
wide GND plane.
VCC
I
Power supply terminal
DC 3.0 to 5.5 V
TXSEL
I
TX select terminal
GND = TXSEL active
To enable the transmitter circuits,
connect TXSEL to GND and RXSEL
to OPEN or 2.8 V.
RXSEL
I
RX select terminal
GND= RXSEL active
To enable the receiver circuits,
connect RXSEL to GND and TXSEL
to OPEN or 2.8 V.
AFOUT
O
Analogue output terminal
There is a DC offset of approx. 1 V.
Refer to the specification table for
amplitude level.
CLK
I
Clock terminal fof PLL data setting
input
Interface voltage H = 2.8 V, L = 0 V
DATA
I
PLL data setting input terminal
Interface voltage H = 2.8 V, L = 0 V
