ML7344J datasheet(67/151 Pages) ETC2

Nome de Peças	ML7344J

Descrição Electrónicos	Sub-GHz band short range wireless transceiver IC

PDF	151 Pages

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Fabricante Electrônico	ETC2 [List of Unclassifed Manufacturers]

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67 / 151 page

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

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