W55RFS27R1B Datasheet, PDF (6/15 Pages) Winbond – SUPER-REGENERATION RF RECEIVER

W55RFS27R1B
2.2 W55RFS27R1B Functional Description
Power Regulator
The W55RFS27R1B built-in power regulator provides stable operating performance for operating
voltages from 2.1 to 5.5 V, a very wide range of voltages suitable for 2- or 3-battery R/C toys or R/C
vehicles.
RF Receiver
The W55RFS27R1B has been implemented using a "Super-Regenerative" receiving architecture. The
resulting high noise immunity is suitable for getting higher RF receiving performance in very noisy
environments. In addition, the Smart-Detector^WB function overcomes component deviation and
various environmental problems to provide the highest receiver sensitivity, making it quite suitable for
mass-produced applications.
Baseband Control Function Decoder
The W55RFS27R1B has a built-in, 6-function baseband control function decoder for R/C toys. The six
functions include Forward; Backward; Left-turn; Right-turn, and two user-defined functions F1 and F2.
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