MICRF112 データシートの表示（PDF） - Micrel

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MICRF112

QwikRadio® UHF ASK/FSK Transmitter

Micrel 

Micrel, Inc.

MICRF112

Absolute Maximum Ratings (Note 1)

Supply Voltage VDD ...................................................+5.0V

Voltage on PAOUT......................................................+7.2V

Voltage on I/O Pins ............................ VSS–0.3 to VDD+0.3

Storage Temperature Range ....................-65°C to + 150°C

Lead Temperature (soldering, 10 seconds) ............ + 300°C

ESD Rating.................................................................Note 3

Operating Ratings (Note 2)

Supply Voltage VDD ........................................ 1.8V to 3.6V

Ambient Operating Temperature (TA) ...... –40°C to +125°C

Programmable Transmitter Frequency Range:

....................................................... 300MHz to 450MHz

Electrical Characteristics(Note 4)

Specifications apply for VDD = 3.0V, TA = 25°C, FreqREFOSC = 13.560MHz, EN = VDD. Bold values indicate –40°C to 125°C unless

otherwise noted. 1kbps data rate 50% duty cycle. RL 50ohm load (matched)

Parameter

Condition

Min

Typ

Max

Units

Power Supply

Standby supply current, Iq EN = VSS

.05

1µA

µA

Mark Supply Current ION

@ 315MHz, POUT = +10dBm

11.2

mA

@ 433.92MHz, POUT = +10dBm

11.2

mA

SPACE supply current, IOFF @ 315MHz

2.7

mA

@ 433.92 MHz

2.7

mA

RF Output Section and Modulation Limits:

Output power level, POUT

FSK or ASK "mark"

@315MHz, Note 4

@433.92MHz, Note 4

Harmonics output for 315

MHz

@ 630MHz, Note 4 2nd harm.

@945MHz, Note 4 3rd harm.

Harmonics output for

433.92 MHz

@ 867.84MHz, Note 4 2nd harm.

@1301.76MHz, Note 4 3rd harm.

10.5

dBm

10.5

dBm

-39

dBc

-53

dBc

-55

dBc

-55

dBc

Extinction ratio for ASK

FSK Modulation

Frequency Deviation

load capacitor = 10pF, crystal type = HC49/U

Data Rate

ASK Modulation

Data Rate

Occupied Bandwidth

@315MHz, Note 6

@433.92MHz, Note 6

VCO Section

315 MHz Single Side Band

Phase Noise

@ 100kHz from Carrier

@ 1000kHz from Carrier

433.92 MHz Single Side

Band Phase Noise

@ 100kHz from Carrier

@ 1000kHz from Carrier

Reference Oscillator Section

XTLIN, XTLOUT, XTLMOD Pin capacitance

External Capacitance

See Schematic C17 & C18

Oscillator Startup Time Note 5 Crystal: HC49S

Digital / Control Section

70

dBc

22

kHz

10

kbps

50

<700

<1000

kbps

kHz

kHz

-76

dBc/Hz

-79

dBc/Hz

-72

dBc/Hz

-81

dBc/Hz

2

pF

18

pF

300

µs

Output Blanking

STDBY transition from LOW to HIGH

500

µs

December 2011

4

M9999-120911

(408) 944-0800

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