W55RFS27T3 Datasheet, PDF (6/12 Pages) List of Unclassifed Manufacturers – Super-Regeneration RF Transmitter

W55RFS27T3 DataSheet
2.2 W55RFS27T3 Functional Description
W55RFS27T3 provides two operation
modes for convenient remote control product
development, named Manual-mode and uC-mode.
Manual-mode provides a powerful
baseband command encoder, which perform 6-
function binary data encode and direct output to
control the on-chip RF transmitter. The encoder
integrate Winbond patented ChannelShared^WB
technology in it and allow at most 3 players at the
same time. The 6-function can be Forward,
Backward, Left-turn, Right-turn for general R/C-
vehicle control and 2 other user-defined functions.
Auto power down function save battery life when
all inputs are released.
It is very convenient to do remote control
if W55RFS27T3 and its associated receiver/decoder
W55RFS27R3B are adopted.
The uC-mode provides digital interface for
external micro-controller to control the transmitter
easily and efficiently. The micro-controller only
needs two pins, TXD (S1) to send data and ENB
(S2) to enter power down mode, if needed.
The transmitter provides the FCC/ETSI
regulation provisions for 27M and 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
15dBm high efficient transmission output power.
W55RFS27T3 Super-regeneration RF transmitter 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.
Electronic Characteristics
3.1 W55RFS27T3 Absolute Maximum Ratings
Parameter
Supply Voltage to Ground Potential
Applied Input/Output Voltage
Power Dissipation (T_a = 70C)
Ambient Operating Temperature
Storage Temperature
Rating
- 0.3 to 6.5
- 0.3 to 6.5
150
0 to 70
-40 to 85
Unit
V
V
mW
C
C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.
6
Revision: A3.0
Publish Date: Dec. 2010