ML7344J datasheet(67/151 Pages) ETC2

Teilenummer	ML7344J

Bauteilbeschribung	Sub-GHz band short range wireless transceiver IC

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FEDL7344C/E/J-04

ML7344C/E/J

67/151

●IF frequency setting

IF frequency is 200kHz. IF frequency corresponds to each oepration frquency must be selected as below.

Operating Frequency

169MHz

(ML7344E)

315 to 450MHz

(ML7344J)

470 t0 510MHz

(ML7344C)

PLL division setting

[PLL_DIV_SET:B1 0x1A]

0x10

0x00

IF frequency setting

[IF_FREQ_H/L:B0 0x54-55]

0x1F81

0x0FC0

IF frequency setting value can be calculated using the following formula:

)

(

⋅

⎪⎭

⎪

⎬

⎫

⎪⎩

⎪

⎨

⎧

ref

FREQ

(Integer part)

Here

FREQ

IF _

: IF frequency setting

IF frequency [MHz]

ref

PLL reference frequency (=master clock frequency: FMCK1)

[Example] ML7344C/J

IF_FREQ= {(0. 2MHz / 2) / 26MHz} * 220 (Integer part) = 4032 (0x0FC0)

[IF_FREQ_H: B0 0x54] = 0x0F

[IF_FREQ_L: B0 0x55] = 0xC0

[Example] ML7344E

IF_FREQ= {(0. 2MHz / 2) / (26/2)MHz} * 220 (Integer part) = 8065 (0x1F81)

[IF_FREQ_H: B0 0x54] = 0x1F

[IF_FREQ_L: B0 0x55] = 0x81

ML7344J Datenblatt(PDF) 67 Page - List of Unclassifed Manufacturers

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