W55RFS27T1B Datasheet, PDF (3/15 Pages) Winbond – SUPER-REGENERATION RF TRANSMITTER

W55RFS27T1B DataSheet
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
3
Revision: A3.0
Publish Date: Feb. 2010