MICRF002BM データシートの表示（PDF） - Micrel

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MICRF002BM

300-440MHz QwikRadio™ASK Receiver

Micrel 

MICRF002/RF022

Micrel

Symbol

Parameter

Condition

Min Typ Max Units

Digital/Control Section

VIN(high)

VIN(low)

IOUT

VOUT(high)

VOUT(low)

tR, tF

Input-High Voltage

Input-Low Voltage

Output Current

Output High Voltage

Output Low Voltage

Output Rise and Fall Times

SEL0, SEL1, SWEN

SEL0, SEL1, SWEN

DO, WAKEB pins, push-pull

DO, WAKEB pins, IOUT = –1µA

DO, WAKEB pins, IOUT = +1µA

DO, WAKEB pins, CLOAD = 15pF

0.8

VDD

0.2

VDD

10

µA

0.9

VDD

0.1

VDD

10

µs

Note 1.

Note 2.

Note 3.

Note 4:

Note 5:

Note 6:

Note 7:

Exceeding the absolute maximum rating may damage the device.

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

Devices are ESD sensitive, use appropriate ESD precautions. Meets class 1 ESD test requirements, (human body model HBM), in accor-

dance with MIL-STD-883C, method 3015. Do not operate or store near strong electrostatic fields.

Sensitivity is defined as the average signal level measured at the input necessary to achieve 10-2 BER (bit error rate). The RF input is

assumed to be matched to 50Ω.

Spurious reverse isolation represents the spurious components which appear on the RF input pin (ANT) measured into 50Ω with an input RF

matching network.

Parameter scales linearly with reference oscillator frequency fT. For any reference oscillator frequency other than 4.8970MHz, compute

new parameter value as the ratio:

fREFOSCMHz × (parameter value at 4.8970MHz)

4.8970MHz

Parameter scales inversely with reference oscillator frequency fT. For any reference oscillator frequency other than 4.8970MHz, compute

new parameter value as the ratio:

4.8970MHz × (parameter value at 4.8970MHz)

fREFOSCMHz

Note 8:

Series resistance of the resonator (ceramic resonator or crystal) should be minimized to the extent possible. In cases where the resonator

series resistance is too great, the oscillator may oscillate at a diminished peak-to-peak level, or may fail to oscillate entirely. Micrel recom-

mends that series resistances for ceramic resonators and crystals not exceed 50Ohms and 100Ohms respectively. Refer to Application Hint

35 for crystal recommendations.

March 2003

5

MICRF002/RF022

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