AX5243 datasheet(21/65 Pages) ONSEMI

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Specifications

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AX5243

Receiver and Transmitter Settling Phases

SYMBOL

DESCRIPTION

CONDITION

MIN

TYP

MAX

UNIT

Txtal

XTAL settling time

Powermodes:

POWERDOWN to STANDBY

Note that Txtal depends on the

specific crystal used.

0.5

Tsynth

Synthesizer settling time

Powermodes:

STANDBY to SYNTHTX or

SYNTHRX

μs

Ttx

TX settling time

Powermodes:

SYNTHTX to FULLTX

Ttx is the time used for power

ramping, this can be

programmed to be 1 x tbit, 2 x

tbit, 4 x tbit or 8 x tbit.

Note 1, 2

1 x tbit

8 x tbit

μs

Trx_init

RX initialization time

150

μs

Trx_rssi

RX RSSI acquisition time

(after Trx_init)

Powermodes:

SYNTHRX to FULLRX

Modulation (G)FSK

Note 1, 2

3 x tbit

μs

Trx_preamble

RX signal acquisition time

to valid data RX at full

sensitivity/selectivity

(after Trx_init)

9 x tbit

Notes

tbit depends on the datarate, e.g. for 10 kbps tbit = 100 μs

In wire mode there is a processing delay of typically 6 x tbit between antenna and DCLK/DATA pins

AX5243 数据表(PDF) 21 Page - ON Semiconductor

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AX5243 数据表(PDF) 21 Page - ON Semiconductor

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