MAQRF112 datasheet(4/15 Pages) MICREL

Part #	MAQRF112

Description	Automotive, 300MHz to 450MHz, 10dBm, 1.8V to 3.6V, ASK/FSK Transmitter with Shutdown

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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Micrel, Inc.

MAQRF112

February 7, 2013

4

Revision 1.0

Parameter

Condition

Min

Typ

Max

Units

Occupied Bandwidth

fRF = 315MHz

(5)

630

kHz

fRF = 433.92MHz

(5)

670

kHz

VCO Section

Single Side-Band Phase

Noise

fRF = 315MHz

fOFFSET = 100kHz

–76

dBc/Hz

fOFFSET = 1000kHz

–79

dBc/Hz

fRF = 433.92MHz

fOFFSET = 100kHz

–72

dBc/Hz

fOFFSET = 1000kHz

–81

dBc/Hz

Reference Oscillator Section

XTLIN, XTLOUT,

XTLMOD

Pin capacitance

2

pF

Oscillator Start-Up Time

Crystal: HC49S, Note 4

400

µs

Digital/Control Section

Digital Input Threshold

Voltage

(EN, ASK, and FSK)

High (VIH)

0.8VDD

V

Low (VIL)

0.2VDD

V

Digital Input Current

(EN, ASK, and FSK)

High (IIH), VDD = 3.6V

0.05

1

µA

Low (IIL), VDD = 3.6V

0.05

1

µA

Supply Undervoltage Lock

Out (UVLO)

1.6

V

Notes:

1.

Exceeding the absolute maximum ratings can damage the device.

2.

The device is not guaranteed to function outside its operating ratings.

3.

Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5k

Ω in series with 100pF.

4.

Dependent on crystal.

5.

RBW = 100kHz, OBW measured at –20dBc.

6.

Data rate = 50kbps, pulse width = 10µs, pulse repetition time = 20µs.

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