W55RFS27T1B datasheet(7/15 Pages) ETC2

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W55RFS27T1B DataSheet

Revision: A3.0

Publish Date: Feb. 2010

- 7 -

Revision A1

general R/C-vehicle control and 2 other user-

defined functions F1 and F2.

It is very suitable for remote control

applications if W55RFS27T1B and its associated

receiver/decoder W55RFS27R1B are adopted. The

very pair provides extremely low-cost and high-

performance function for design of various remote-

control applications.

The uC-mode provides digital interface for

external micro-controller to control the transmitter

easily and efficiently. The micro-controller only

need 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, 40MHz 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.

W55RFS27T1B 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 W55RFS27T1B Absolute Maximum Ratings

Parameter

Rating

Unit

Supply Voltage to Ground Potential

- 0.3 to 6.5

Applied Input/Output Voltage

- 0.3 to 6.5

Power Dissipation (Ta = 70C)

150

Ambient Operating Temperature

0 to 70

C

Storage Temperature

-40 to 85

C

Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.

3.2 W55RFS27T1B DC Characteristics

(VDD-VSS = 3 V, Ta = 25C; unless otherwise specified)

Parameter

Sym.

Conditions

Min.

Typ.

Max.

Unit

Power Supply

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