ML7344CE datasheet(140/154 Pages) LAPIS

140 / 154 page

FEDL7344C/E/J-05

ML7344C/E/J

140/154

●Transition from IDLE to SLEEP

*1 : Clock input should be required for SLEEP transition. If TCXO is stopped during SLEEP stae, please wait

0.3μs after SLEEP command issued (SLEEP_EN([SLEEP/WU_SET: B0 0x2D(0)])=0b1) and then stop TCXO.

●Transition from TX/RX to SLEEP

*1 : If TCXO is used, please stop TCXO(clock) input after 1.3μs from INT[3] notification. by setting SLEEP command

(SLEEP_EN ([SLEEP/WU_SET: B0 0x2D(0)])=0b1).

OSC/Reg enable

CLK_INIT_DONE

[CLK_SET: B0 0x02]

SLEEP

command

0.3μs

SLEEP transition time *1

SLEEP_EN

[SLEEPWU_SET: B0 0x2D]

0x3(Force_TRX_OFF)

0x8(TRX_OFF)

SET_TRX[3:0]

[RF_STATUS: B0 0x0B]

GET_TRX[3:0]

[RF_STATUS: B0 0x0B]

By SLEEP_EN=0b1,

automatic switching

OSC/Reg enable

1.3μs

Time required from INT[3]

to SLEEP *1

SLEEP_EN

[SLEEPWU_SET: B0 0x2D]

SET_TRX[3:0]

[RF_STATUS: B0 0x0B]

GET_TRX[3:0]

[RF_STATUS: B0 0x0B]

INT[3] (RF state transition completion)

[INT_SOURCE_GRP1: B0 0x0D]

1μs

CLK_INIT_DONE

[CLK_SET: B0 0x02]

0x6(RX_ON)

0x9(TX_ON)

0x3(Force_TRX_OFF)

By SLEEP_EN=0b1,

automatic switching

0x6(RX_ON)

0x9(TX_ON)

0x8(TRX_OFF)

From RX_ON:4μs

From TX_ON:147μs

SLEEP

command

ML7344CE Datasheet(PDF) 140 Page - LAPIS Semiconductor Co., Ltd.

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