ML7344CE datasheet(134/154 Pages) LAPIS

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ML7344CE Datasheet(PDF) 134 Page - LAPIS Semiconductor Co., Ltd.

Part #	ML7344CE

Description	Sub-GHz(160MHz to 510MHz) band short range wireless transceiver IC

PDF	154 Pages

Scroll/Zoom	100%

Manufacturer	LAPIS [LAPIS Semiconductor Co., Ltd.]

Direct Link	http://www.lapis-semi.com/

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134 / 154 page

FEDL7344C/E/J-05

ML7344C/E/J

134/154

○RX

During RX, if PLL unlock is detected, PLL unlock interrupt (INT[2] group1) will be generated. During RX,

even if PLL unlock is detected, RX state is maintained (do not move to IDLE state). Please receive next packet

after clearing PLL unlock interrupt.

When PLL unlock interrupt occurs frequently, PLL unlock cause mitgh be due to the mismatch of the VCO

circuit and using frequency band. Please use after removing the cause by circuit verification.

START

Next packet to be received?

Yes

PLL unlock (INT[2])?

[INT_SOURCE_GRP1:B0 0x0D (2)]

Normal RX

(To RX flowchart)

Yes

END

INT[2] clear

[INT_SOURCE_GRP1:B0 0x0D(2)]

RX_ON issue

[RF_STATUS:B0 0x0B]

Force_TRX_OFF issue

[RF_STATUS:B0 0x0B]

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