MICRF220 datasheet(3/18 Pages) MICREL

3 / 18 page

Micrel, Inc.

MICRF220

August 2010

M9999-082610-A

Absolute Maximum Ratings(1)

Supply Voltage (VDD).................................................. +5V

ANT, SQ, SEL0, SEL1,

SHDN DC Voltage. ....................

−0.3V to VDD + 0.3V

Junction Temperature ...........................................+150ºC

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

Storage Temperature .............................

−65ºC to +150°C

Maximum Receiver Input Power ......................... +10dBm

ESD Rating

(3)....................................................3kV HBM

Operating Ratings(2)

Supply Voltage (VDD) ............................. +3.0V to +3.6V

Ambient Temperature (TA)..................–40°C to +105°C

ANT, SQ, SEL0, SEL1,

SHDN DC Voltage ................ ....

−0.3V to VDD + 0.3V

Maximum Input RF Power.................................. 0 dBm

Receive Modulation Duty Cycle .......................20~80%

Frequency Range .......................... 300MHz to 450MHz

Electrical Characteristics

VDD = 3.3V, VSHDN = GND = 0V, SQ = open, CCAGC = 4.7µF, CCTH = 0.1µF, unless otherwise noted. Bold values indicate

–40°C ≤ TA ≤ 105°C. “Bit rate” refers to the encoded bit rate throughout this datasheet (see Note 4).

Parameter

Condition

Min.

Typ.

Max.

Units

Continuous Operation, fRF = 315MHz

4.3

Operating Supply Current

Continuous Operation, fRF = 433.92MHz

6.0

Shutdown Current

VSHDN = VDD

0.1

µA

Receiver

433.92MHz, VSEL1 = VSEL0 = 0V, BER = 1%

−112.5

433.92MHz, VSEL1 = VSEL0 = 0V,

BER = 0.1%

−110

315MHz, VSEL1 = 0V, VSEL0 = 3.3V,

BER = 1%

−112.5

Conducted Receiver

Sensitivity@1kbps (Note 5)

315MHz, VSEL1 = 0V, VSEL0 = 3.3V,

BER = 0.1%

−110

dBm

Image Rejection

fIMAGE = fRF – 2fIF

fRF = 315MHz

0.85

IF Center Frequency (fIF)

fRF = 433.92MHz

1.18

MHz

fRF = 315MHz

235

−3dB IF Bandwidth

fRF = 433.92MHz

330

kHz

−40dBm RF input level

1.15

CAGC Voltage Range

−100dBm RF input level

1.55

Reference Oscillator

fRF = 315 MHz

9.81713

Reference Oscillator

Frequency

fRF = 433.92 MHz

13.52313

MHz

Reference Buffer Input

Impedance

RO1 when driven externally

1.6

kΩ

Reference Oscillator Bias

Voltage

RO2

1.15

Reference Oscillator Input

Range

External input, AC couple to RO1

0.2

1.5

VP-P

Reference Oscillator Source

Current

VRO1 = 0V

300

µA

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