rws-434n

http://www.wenshing.com.tw ; http://www.rf.net.tw RWS-434N Data Sheet P.1

RWS-434N WENSHING®©

V1.01

433.92MHz ASK RF Receiver Module

Data Sheet Revision History

Version Date Changes

V1.01 Mar 28, 2009 First Edition


Key Feature

Low Current 5.7mA

Sensitive

Application

Security System

Wireless Remote Control Car

Wireless Remote Control Robot

Automatic Power Switch Control

Electrical Specification

Parameter Specification

Unit Condition Min Typ Max

Frequency Range 433.92 MHz

Receiver Sensitivity -116 -114 dBm

Data Rate 0.058 12 KBaud

Supply Voltage, VDD 3.5 5.5 V DC

Current 5.7 7.3 mA

Operating Temperature -20 +85 °C

Lost cost 433.92MHz Receiver Module

Build-in AGC

Low Working Voltage 3.5V~5.5V

High Sensitive -116dBm


Function Introduction

This wireless high-frequency receiver module RWS-434N is through

WENSHING R&D team assembled many years of experience to develop this

high sensitivity OOK receive module. Lost cost, high stable also can provide

the best RF solution in the market.

Design ideal is to use SAW filter, highly suitable for industry control or bad

place for use, strong anti-jamming. Built-in automatic gain circuit (AGC), it

will automatically change front-end LNA gain among received signal strength

also makes signal output will not be strong or weak signals which caused by

phase distortion, so that it can rise higher sensitivity. To receive the local

oscillation circuit for the PLL lock loop design, no offset, and stability is high.

Frequency is 433.9MHz and receiver structure is superheterodyne, received

signal is OOK. After received signal, it will output TTL signal to external

decoder IC for decoding.

It is convenience to use in different products and external components is not

necessary to make products be wireless also bring value-added for your

products.

Internal Block Diagram

LN

A

PLL

AGC

RWS-434N


2.54mm

7mm

10

.2m

m

0.5mm

PIN 1 PIN 5

Pin Assignment

Pin No. 1 2 3 4 5 6 7 8

Pin Name ANT GND GND VCC VCC NC DATA DGND

Description RF

Input

RF

GND

RF

GND

Power

Supply

V+

Power

Supply

V+

Digital

DATA

Output

Power

Supply

GND

Size (unit: mm)

LAYOUT Notice

Power supply is by 5PIN VCC and 8PIN GND provide electronic. Do not let

DGND connect with RF GND to prevent MCU EMI interfere RF received signal.

Please check example of design.

DCOK

DCERR

RWS-434N PCB

LAYOUT ATT


Application Circuit

C1

4

103P

U1

CP

U

P521

P532

TOC3

/RESET4

VSS5

P606

P617

P628

P639

P6410

P6511

P6612

P6713

VCC14

OSCO15

OSCI16

P5017

P5118

U3 93

C4

6

NC1 VCC2 CS3 SK4

D/I5

D/O6

GND7

NC8

J2

BN

C

1

2

U2

RW

S-4

34

N

ANT1

GND2

GND3

VCC4

VCC5

TE16

DATA OUT7

GND8

D1

DIO

DE

Q1

NP

N

K1

RE

LA

Y S

PD

T

D3

DIO

DE

Q2

NP

N

K2

RE

LA

Y S

PD

T

R1

4K

7

R4

4K

7

L3

BE

AD

D2 LE

D

R3

1K

S2

SW

DIP

-2

1 2

4 3

S1

SW

PU

SH

BU

TT

ON

R2

470K

+C

4

10

UF

Y1

3.5

8M

HZ

C2

33P

C1

33P

VD

D 5

V

VD

D 5

V

VD

D 5

V

C3

104P

J1

CO

N6

1 2 3 4 5 6V

DD

5V

VD

D 5

V

INO

UT

$PIN2

+C

5

10

0U

F+

C7

10

0U

F

VD

D 5

VIN

D4

DIO

DE

C6

103P

C8

103P

請注

意如

果EMI過

高,這

BEAD零

件一

定要

加

Ple

ase n

ote

that

if t

he E

MI is

too h

igh,

it m

ust

have t

o incre

ase p

art

s B

EA

D

The

road

map

set

ou

t in

all

the

pat

ents

, co

pyr

igh

ts, t

rad

e se

cret

s o

r te

chn

olo

gy

ob

sess

ed s

ecre

tary

(K

no

w-H

ow

) an

d o

wn

ersh

ip, w

ith

ou

t th

e w

ritt

en c

on

sen

t o

f th

e C

om

pan

y, w

ill b

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low

ed t

o c

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y, p

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togr

aph

y an

d r

epro

du

ced

, th

e co

mp

any

will

re

tain

th

e ri

ght

to le

gal r

eco

urs

e.

rws-434n

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