Rainbow-electronics RF12B User Manual

RF12B RF12B Universal ISM Band FSK Transceiver Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail:

RF12B Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http://www.hoperf.com C

RF12B Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http://www.hoperf.com

RF12B CONTROL INTERFACE Commands to the transmitter are sent serially. Data bits on pin SDI are shi

RF12B Control Commands Control Command Related Parameters/Functions Related control bits 1 Con

RF12B 2. Power Management Command bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 POR 1 0 0 0 0

RF12B Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http://www.hoperf.com 3

RF12B Bits 7-5 (i2 to i0): Receiver baseband bandwidth (BW) select: i2 i1 i0 BW [kHz] 0 0

RF12B Bits 4 (s): Select the type of the data filter: s Filter Type 0 Digital filter 1 Ana

RF12B Bit 1 (ff): FIFO fill will be enabled after synchron pattern reception. The FIFO fill stops whe

RF12B Bit 3 (st): Strobe edge, when st goes to high, the actual latest calculated frequency error is

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RF12B only one transmitter. After a complete measuring cycle, the measured value is kept independentl

RF12B Bit 4 (lpx): When this bit is set, low power mode of the crystal oscillator is selected. lpx C

RF12B bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 POR 1 1 0 0 1 0 0 r0 d6 d5 d4 d3 d2 d1 d0 en C80Eh

RF12B 1 0 1 3.33 1 1 0 5 1 1 1 10 The low battery detector and the clock output can be enabled or dis

RF12B in the AFC Control Command (bit 0). TX REGISTER BUFFERED DATA TRANSMISSION In this operating

RF12B Note: The content of the data registers are initialized by clearing bit et. RX FIFO BUFFERED D

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RF12B Note: • LNA gain maximum, filter bandwidth 67 kHz, data rate to 9.6 kbps, AFC switched off,

RF12B Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http://www.hoperf.com

RF12B DETAILED FEATURE-LEVEL DESCRIPTION The RF12B FSK transceiver is designed to cover the unlicen

RF12B The table shows the optimal receiver baseband bandwidth (BW) and transmitter deviation frequen

RF12B (868 MHz, 9.6 kbps, δ fFSK: 45 kHz, BW: 67 kHz): Tel: +86-755-86096587

RF12B REFERENCE DESIGNS Schematic PCB layout Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: s

RF12B SGS Reports Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http:/

RF12B Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http://www.hoper

RF12B RF12B BONDING DIAGRAM Pad Opening: 85um square, except 76um octagon pads (AN1, AN2) Die Siz

RF12B Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http://www.hoperf.com

RF12B Data Filtering and Clock Recovery Output data filtering can be completed by an external capac

RF12B Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http://www.hoperf.com T

RF12B PACKAGE PIN DEFINITIONS Pin type key: D=digital, A=analog, S=supply, I=input, O=output, IO=in

RF12B PIN6(FSK/DATA/nFFS) internal structure PIN10(nRES) internal structure Typical A

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