March 2003

5

MICRF002/RF022

MICRF002/RF022

Micrel

Symbol

Parameter

Condition

Min

Typ

Max

Units

Digital/Control Section

V

IN(high)

Input-High Voltage

SEL0, SEL1, SWEN

0.8

V

DD

V

IN(low)

Input-Low Voltage

SEL0, SEL1, SWEN

0.2

V

DD

I

OUT

Output Current

DO, WAKEB pins, push-pull

10

µA

V

OUT(high)

Output High Voltage

DO, WAKEB pins, I

0.9

V

DD

V

OUT(low)

Output Low Voltage

DO, WAKEB pins, I

0.1

V

DD

t

Output Rise and Fall Times

DO, WAKEB pins, C

10

µs

Note 1.

Exceeding the absolute maximum rating may damage the device.

Note 2.

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

Note 3.

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.

Note 4:

assumed to be matched to 50

Ω.

Note 5:

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

Ω with an input RF

matching network.

Note 6:

Parameter scales linearly with reference oscillator frequency f

new parameter value as the ratio:

f

MHz

4.8970MHz

(parameter value at 4.8970MHz)

REFOSC

×

Note 7:

Parameter scales inversely with reference oscillator frequency f

new parameter value as the ratio:

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.

4.8970MHz

f

MHz

(parameter value at 4.8970MHz)

REFOSC

×