BC48R2020 datasheet(10/67 Pages) HOLTEK

Part #	BC48R2020

Description	315/433MHz Remote RF TX 8-Bit OTP MCU

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Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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Rev. 1.10

10

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Rev. 1.10

11

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BC48R2020

315/433MHz Remote RF TX 8-Bit OTP MCU

BC48R2020

315/433MHz Remote RF TX 8-Bit OTP MCU

RF Transmitter Electrical Characteristics

SpecificationsapplyforAVDD=3.0V,Ta=25°C,FreqX’talOSC=13.560MHz,DATAistransmitting.

Boldvaluesindicate-20°Cto70°Cunlessotherwisenoted.1kbpsdatarate50%dutycycle.RL50Ω

load(matched).

Ta=��°C

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

AVDD

Conditions

II

Data High Current

3V

@31��Hz� POUT=+10dBm

—

1�.�

—

mA

@�33.9��Hz

—

1�.�

—

mA

IO

Data Low Current

3V

@31��Hz

—

3.0

—

mA

@�33.9��Hz

—

3.0

—

mA

ISTB

EN Low & DIN Low Current

3V

@31��Hz

—

1.0

—

μA

@�33.9��Hz

—

1.0

—

μA

RF and Crystal

Output Power Level

3.3V

@31��Hz*

—

9.�

—

dBm

@�33.9��Hz*

—

9.�

—

dBm

Harmonics Output for 31� �Hz

3V

@630�Hz� �nd harm

—

-�8

—

dBc

@9��Hz� 3rd harm

—

-60

—

dBc

Harmonics Output for

�33.9��Hz

3V

@867.8��Hz� �nd harm

—

-��

—

dBc

@1301.76�Hz� 3rd harm

—

-��

—

dBc

Extinction Ratio for ASK 10Kbps 3V

—

-70

—

dBc

Data Rate

3V

—

�0

kbps

Occupied Bandwidth

3V

@31��Hz

—

<900

—

kHz

@�33.9��Hz

— <1000 —

kHz

31��Hz Single Side Band

Phase Noise

3V

100kHz from Carrier

—

-78

— dBc/Hz

1000kHz from Carrier

—

-77

— dBc/Hz

�33.9��Hz Single Side Band

Phase Noise

3V

100kHz from Carrier

—

-78

— dBc/Hz

1000kHz from Carrier

—

-76

— dBc/Hz

XTLIN� XTLOUT

3V Pin capacitance

—

�

—

pF

Output Blanking

3V Standb� transition from low to high ** —

�00

—

μS

ASK to RF Out Response Time

3V

Delta between ASK input transition

from Low To High to RF output

transition from low to high

—

1

—

μS

CREF Clock Output Frequenc�

3V

@31��Hz

—

1�0

—

Hz

@�33.9��Hz

—

�07

—

Hz

Note:*DependonPCboardlayout.

**Generallylimitedbycrystal.

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BC48R2020 Datasheet(PDF) 10 Page - Holtek Semiconductor Inc

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