PT4301

V1.4

2

October 2010

APPLICATION CIRCUIT

XOUT

1

REGIF

2

LNAIN

3

VSSLNA

4

LNAOUT

5

REGRF

6

MIXIN

7

VSSMIX

8

MIXOUT

9

VSSDIG

10

REGDIG

11

AGCDIS

12

LIMIN

13

LIMINB

14

DFO

15

DSN

16

OPP

17

DFFB

18

DSP

19

VDD5

20

DATA

21

PDOUT

22

CE

23

XIN

24

PTC

PT4301

X1

CE

PWR

VDD5

C1

C2

C3

C4

L1

C5

C6

C7

L2

R1

F1

C8

C10

C9

R2

C11

C12

R5

R4

C14

C15

C13

R3

U1

R6

C16

REGDIG

L3

R7

BILL OF MATERIALS

Component

Value

Unit

Description

315MHz

434MHz

R1, R4

10

10

Ω

Power supply de-coupling resistors (option)

R2

27K

27K

Ω

Data filter to data slicer interface resistor

R3

8.2M

8.2M

Ω

Data slicer threshold adjustment (option)

R5

220K

220K

Ω

Data filter to data slicer interface resistor

R6

100K

100K

Ω

AGC disable

R7

5.6K

5.6K

Ω

REGDIS discharge resistor (option)

L1

68n

39n

H

LNA input matching, coil inductor

L2

47n

27n

H

LNA output matching

L3

39n

27n

H

Antenna ESD protection, coil inductor (option)

100n

100n

F

Power supply de-coupling resistors

C2

10p

10p

F

LNA input matching

C3

-

-

F

LNA input matching (option)

C4

1.8p

1.2p

F

LNA input matching

C5

-

-

F

LNA output matching (option)

C6

100p

100p

F

LNA to mixer interface capacitor

C8

1.5n

1.5n

F

IF amplifier de-coupling capacitor

C9

470n

470n

F

Data slicer threshold charge capacitor

C10

390p

390p

F

Data filter capacitor

C11

1.2n

1.2n

F

Data filter capacitor

C13

-

-

F

Peak mode charge capacitor (option)

C14, C15

27p

27p

F

Crystal oscillator frequency fine tune capacitors

C16

100n

100n

F

AGC high gain mode quick start capacitor

10.7

10.7

MHz

IF filter

X1

9.509

13.226

MHz

Reference crystal oscillator

U1

PT4301 IC

PT4301 IC

-

Receiver chip

Notes:

1. C1 could be separated into three de-coupling capacitors and connect them against the three VDD pins as close as possible.

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