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4

October 1999

MICRF003

MICRF003

Micrel

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VDDRF, VDDBB)..................................+7V

Voltage on any I/O Pin.........................VSS-0.3 to VDD+0.3

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

°C

Storage Temperature Range......................-65

°C to + 150°C

Lead Temperature (soldering, 10 seconds)..............+ 260

°C

Operating Ratings

Supply Voltage (VDDRF, VDDBB)....................4.75V to

5.5V

Ambient

Operating

Temperature

(TA)..........-40

°C to

+105

°C

Package Thermal Resistance

θja (8 Pin SOIC).....120°C/W

Package Thermal Resistance

θja (16 Pin SOIC).....120°C/W

Electrical Characteristics

Unless otherwise stated, these specifications apply for Ta = -40

°C to 105°C, 4.75<VDD<5.5V. All voltages are with respect

to Ground; Positive currents flow into device pins. CAGC = 4.7µF, CTH = .047µF, VDDRF = VDDBB = VDD. REFOSC

frequency = 6.75MHz.

Parameter

Test Conditions

MIN

TYP

MAX

UNITS

Power Supply

Operating Current

4

mA

Operating Current

10:1 Duty Cycle

400

µA

Standby Current

SHUT = VDD

1

µA

RF/IF Section

Receiver Sensitivity

Note 1, 3

-95

dBm

IF Center Frequency

Note 4

2.37

MHz

IF 3dB Bandwidth

Note 3, 4

1.18

MHz

Receive Data Rate

FIXED Mode, Manchester Encoded Data

20

kbps

Receive Data Rate

SWP Mode, Manchester Encoded Data

5

kbps

RF Input Range

800

1000

MHz

Receive Modulation Duty-Cycle

20

80

%

Maximum Receiver Input

Rs = 50

Ω

-20

dBm

Spurious Reverse Isolation

ANT pin, Rs = 50

Ω Note 2

30

µVrms

AGC Attack / Decay ratio

T(Attack) / T(Decay)

0.1

AGC Leakage Current

Ta = 85

°C

±200

nA

Local Oscillator Stabilization Time

To 1% of Final Value

2.5

msec

Demod Section

CTH Source Impedance

Note 5

90k

Ω

CTH Source Impedance Variation

-15

+15

%

CTH Leakage Current

Ta = 85

°C

±200

nA

Demod Filter Bandwidth

SEL0 = SEL1 = SWEN = VDD, Note 4, 6

5730

Hz

Demod Filter Bandwidth

SEL0 = SEL1 = VDD, SWEN = VSS,

Note 4, 6

21500

Hz

Digital/Control Section

REFOSC Input Impedance

200k

Ω

Input Pullup Current

SEL0, SEL1, SWEN, SHUT=VSS

8

µA

Input High Voltage

SEL0, SEL1, SWEN

0.8VDD

V

Input Low Voltage

SEL0, SEL1, SWEN

0.2VDD

V

Output Current

DO, WAKEUP pins, Push-Pull

35

µA

Output High Voltage

DO, WAKEUP pins, Iout = -1µA

0.9VDD

V

Output Low Voltage

DO. WAKEUP pins, Iout = +1µA

0.1VDD

V

Output Tr, Tf

DO, WAKEUP pins, Cload=15pF

5

µsec