W55RFS27T1B datasheet(3/15 Pages) ETC2

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W55RFS27T1B DataSheet

Revision: A3.0

Publish Date: Feb. 2010

- 3 -

Revision A1

General Description

nuvoton W55RFS27T1B is a fully

integrated S-R (Super-regeneration) RF transmitter

with full-function of baseband command encoder

for application of R/C vehicle, toy, or wireless data

communication.

W55RFS27T1B provides both uC-mode

for general purpose of micro-controller

programming interface and manual-mode for RF

transmitter as well as 6-function of baseband

command encoder.

W55RFS27T1B cooperate with

W55RFS27R1B is very easy and convenient to

provide simple remote control function with very

low production cost in various application. The

transmitter provides the FCC/ETSI regulation

provisions for 27M, 35M, 40M, 49MHz S-R

(Super-regeneration) modulation. Wide range of

operation voltage from 2.2V to 5.5V is suitable for

2-battery or 3-battery R/C toy application, and high

efficient transmission output power.

W55RFS27T1B is compliant to FCC part

15 class B and 15.227 / ETSI 300 220-1, making it

easier for wireless end products to get FCC and

ETSI compliance approval.

1.1 Features



Operating frequency: 27MHz ~ 49MHz



Wide operating voltage: 2.2V ~ 5.5V



Transmission data rates up to 10K bps (uC-

mode) for 30%-70% duty cycle



High efficiency transmission output power.



Manual-mode supports 6-function of R/C

toy baseband control command encoder, i,e,

Forward, Backward, Left-turn, right-turn, and

2 user defined function F1 and F2



High efficient transmission power with

minimum current consumption



Power down current consumption less than

1uA



Less manual adjustment needed in

production



Fewer external components required in

production



Lower manufacture production cost



Compliant to FCC part 15 class B and 15.227

/ ETSI 300 220-1 low-power & short-range

device requirements



Two input modes for flexibility of more

control function and lower component cost



Dice form available for PCB bonding



Operating temperature: 0C ~ 70C

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