CIRCUIT DESIGN STD-302N-R Instrukcja obsługi - Strona 6

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PIN DESCRIPTION

Pin name
I/O
RF
I/O
GND
I
VCC
I
TXSEL
I
RXSEL
I
AF
I
CLK
I
DATA
I
LE
I
OG_STD-302N-R-419M_v10e
Description
RF input terminal
Antenna impedance nominal 50 Ω
GROUND terminal
The GND pins and the feet of the shield case
shoud be connected to the wide GND
pattern.
Power supply terminal
DC 3.0 to 5.5 V
TX select terminal
GND = TXSEL active
To enable the transmitter circuits, connect
TXSEL to GND and RXSEL to OPEN or 2.8
V.
RX select terminal
GND= RXSEL active
To enable the receiver circuits, connect
RXSEL to GND and TXSEL to OPEN or 2.8
V.
Analogue output terminal
There is DC offset of approx. 1 V.
Refer to the specification table for amplitude
level.
PLL data setting input terminal
Interface voltage H = 2.8 V, L = 0 V
PLL data setting input terminal
Interface voltage H = 2.8 V, L = 0 V
PLL data setting input terminal
Interface voltage H = 2.8 V, L = 0 V
Equivalent circuit
SAW FILTER
2.8V
2.8V
2.8V
6
OPERATION GUIDE
47P
RF
100nH
GND
VCC
REG
10µ
22µ
47P
47P
2.8V
10
20K
TXSEL
2.8V
10
20K
RXSEL
2K
CLK
MB15E03
DATA
2K
MB15E03
2K
LE
MB15E03
Circuit Design, Inc.