RFB433B Micrel Inc, RFB433B Datasheet
RFB433B
Specifications of RFB433B
Related parts for RFB433B
RFB433B Summary of contents
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... It’s a fully tested and shielded block with all external RF components included. The RFB433B covers the 433MHz ISM band in Europe and Asia. RFB433B is pin compatible with RFB868B and RFB915B and allow the user to cover all major markets with one motherboard. It can be utilized ...
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Electrical Characteristics Vdd=2.5-3.4V, T=25 C, unless otherwise specified Parameter Overall Operating frequency Supply voltage Power down current Logic high input, Vih Logic low input, Vil DataIXO, logic high output (Voh) DataIXO, logic low output (Vol) LockDet, logic high output (Voh) ...
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General Description The transmitter section consists of a PLL frequency synthesizer and a power amplifier. The frequency synthesizer consists of a voltage-controlled oscillator (VCO), a crystal oscillator, dual modulus prescaler, programmable frequency dividers and a phase-detector. The VCO is a ...
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Programming A two-line bus is used to program the circuit; the two lines being CLK and REG. The 2-line serial bus interface allows control over the frequency dividers and the selective powering up of Tx, Rx and Synthesizer circuit blocks. ...
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The 80bit control word is first read into a shift-register, and is then loaded into a parallel register by a transition of the REG signal (positive or negative) when the CLK signal is high. The circuit then goes directly into ...
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Application notes DATA Bi-directional data. Modulation is applied to the VCO and therefore the modulation cannot have any DC component. Some kind of coding is needed to ensure that the modulation is DC free, e.g. Manchester code ...
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Interfacing to PIC16LF73 Interfacing to microcontrollers operating at higher voltage levels Standard RF blocks are designed to operate from 2.7V to 3.3V. Some Microcontrollers require higher operating voltages for maximum clock rates. The circuit below allows interfacing ...