PT4303

V1.2

2

December 2013

APPLICATION CIRCUIT

VSSLO

1

VSSRF

2

ANT

3

VRF

4

MIXOUT

5

VBB

6

IFIN

7

VSSBB

VDD5

8

9

CE

10

DO

11

CTH

12

VLO

13

REFOSC

14

PT4303-S

PTC

X1

C1

L1

C2

F1

C3

U1

VDD5

R1

Etched

Inductor

on PCB

C4

R2

BILL OF MATERIALS

Part

Value

Unit

Description



315 MHz

433.92 MHz

L1

82 n

47 n

H

Antenna input matching, coil inductor

C1

1.8 p

1.0 p

F

Antenna input matching

C2/C4

100 n

100 n

F

Power supply de-coupling capacitor

C3

470 n

470 n

F

R1

8.2 M

8.2 M



For reducing data output noise (optional)

R2

10

10



Power supply de-coupling resistor

F1

10.7

10.7

MHz

Band-pass filter

X1

9.509

13.226

MHz

Reference crystal oscillator

U1

PT4303 IC

PT4303 IC

U1

Receiver chip

Notes:

1. L1 and C1 are the components for input matching network. Their values may need to be adjusted depending upon different PCB layout and antenna

requirements.

2. The value of C3 depends upon the data rate and coding pattern.

3. F1 is the 10.7 MHz ceramic filter. The recommended part number is Murata SFELA10M7HA00-B0.

4.

The “optional” components are based on application requirements.