SI4455-B1A-FM datasheet(4/40 Pages) SILABS

No de pièce	SI4455-B1A-FM

Description	EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER

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Fabricant	SILABS [Silicon Laboratories]

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Si4455

4

Rev 1.1

1. Electrical Specifications

Table 1. Recommended Operating Conditions

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Ambient Temperature

TA

–40

25

85

°C

Supply Voltage

VDD

1.8

3.6

V

I/O Drive Voltage

VGPIO

1.8

3.6

V

Table 2. DC Characteristics*

Parameter

Symbol

Test Condition

Min

Typ Max Unit

Supply Voltage Range

VDD

1.8

3.3

3.6

V

Power Saving Modes

IShutdown

RC oscillator, main digital regulator, and low

power digital regulator OFF.

—30

—

nA

IStandby

Register values maintained.

—

50

—

nA

IReady

Crystal Oscillator and Main Digital Regulator ON,

all other blocks OFF.

—2

—

mA

ISPI Active

SPI active state

1.35

mA

TUNE Mode Current

ITune_RX

RX Tune

—

6.5

—

mA

ITune_TX

TX Tune

—

6.9

—

mA

RX Mode Current

IRX

—10

—

mA

TX Mode Current

ITX

+10 dBm output power, 868 MHz

—

18

—

mA

+13 dBm output power, 868 MHz

—

30

—

mA

*Note:

All specifications are guaranteed by production test unless otherwise noted. Production test conditions and max limits

are listed in section "1.1. Definition of Test Conditions" on page 11.

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