Si4356

10

Rev 1.2

Figure 2 shows the application circuit for a particular radio configuration (433.92 MHz, OOK, 2 kbps, 206 kHz

RxBW) with all optional connections. See Sections 5 and 7 for Si4356 pin functionality.

Figure 2. Si4356 Application Circuit Example

Note:

1.

R1 is required to minimize power up current. R1 is only necessary for pin configurations where SEL2 or SEL3 is

mapped to GND.

2.

An optional external low-pass RC filter may be connected to RX_DATA to filter the output and improve sensitivity.

R2 and C7 should be selected to realize a cut-off frequency that is ~40% larger than that targeted data rate

30 MHz

L1

GND

SEL0

1

2

3

4

15

14

13

SEL1

RX_DATA/OUT1

2

STBY

RXn

RST

RXp

5

NC

11

12

C2

Si4356

MSTAT/OUT0

VDD

100 nF

C5

100 pF

C4

1 μF

L2

C3

C6

MCU

Data In

Rx STBY (Optional)

Clock In (Optional)

VDD

Reset (Optional)

Mode Status (Optional)

C1

270 pF

2.7 pF

5.1 pF

56 nH

56 nH

10 k:

R1

1

R2

C7

Optional RC Filter

2