Datasheet > RFM12B-433DP

RFM12B-433DP

更新时间： 2024-01-16 00:18:15

品牌	Logo	应用领域
其他 - ETC		ISM频段
页数	文件大小	规格书
11页	418K
描述
UNIVERSAL ISM BAND FSK TRANSCEIVER MODULE

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获取价格

数据手册

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RFM12B-433DP 数据手册

RFM12B

Datasheet REV2.0

AC characteristic(Transmitter)

symbol parameter

remark

min

typical max Unit

433MHz band

868MHz band

915MHz band

Selectable in 3 dB

steps

P_max

P_out

C_o

Max. available output power

Typical output power

dBm

P_max-21

P_maxdbm

Output capacitance

(set by the automatic antenna

tuning circuit)

In low bands

In high bands

2.6

2.7

3.2

3.3

2.1

Q_o

Quality factor of the output

capacitance

In low bands

In high bands

L_out

Output phase noise

100 kHz from carrier

1 MHz from carrier

Via internal TX data

-80

-103

172

dbc/HZ

kbps

BR_TX

BRA_TX

df_fsk

FSK bit rate

TX data connected to the

FSK input

FSK bit rate

256

240

kbps

FSK frequency deviation

Programmable in 15

kHz steps

kHZ

AC characteristic(Turn-on/Turnaround timings)

symbol

parameter

Crystal oscillator

startup time

Transmitter

time

remark

min typical max Unit

T_st

Crystal ESR < 100

turn-on

Synthesizer

oscillator on with 10 MHz step

Synthesizer off, crystal

oscillator on with 10 MHz step

Synthesizer and crystal

off,

crystal

250

T_{tx_XTAL_ON}

Receiver turn-on time

T_{rx_XTAL_ON}

Transmitter

–

Receiver turnover time

oscillator on during TX/RX

change with 10 MHz step

150

T_{tx_rx_SYNT_ON}

Receiver

–

Synthesizer

and

crystal

Transmitter turnover

time

oscillator on during RX/TX

change with 10 MHz step

Programmable in 0.5 pF steps, 8.5

tolerance+/- 10%

T_{rx_tx_SYNT_ON}

C_xl

Crystal load

capacitance

t_POR

Internal POR timeout

After V_ddhas reached 90% of

final value

100

t_PBt

Wake-up timer clock

period

Calibrated every 30 seconds

0.96

1.05 ms

C_{in, D}

t_{r, f}

Digital input apacitance

Digital output rise/fall time

15pF pure capacitive load

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