MICRF008(2008) Просмотр технического описания (PDF) - Micrel
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MICRF008 Datasheet PDF : 13 Pages
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Micrel, Inc.
MICRF008
Absolute Maximum Ratings(1)
Supply Voltage (VDDRF, VDDBB)........................................+7V
Reference Oscillator Input Voltage (VREFOSC).............. VDDBB
Input/Output Voltage (VI/O). ....................VSS–0.3 to VDD+0.3
Junction Temperature (TJ) ....................................... +150°C
Storage Temperature (Ts) ........................... –65°C to 150°C
Lead Temperature (soldering, 10 sec.)...................... 260°C
ESD Rating(3)
Operating Ratings(2)
Supply Voltage (VDD).................................. +4.75V to +5.5V
Ambient Temperature (TA) .......................... –40°C to +85°C
RF Frequency Range.............................. 300MHz to 440Hz
Data Duty-Cycle ................................................20% to 80%
Reference Oscillator Input Range.............. 0.2VPP to 1.5VPP
Demon Bandwidth........................................... 0.1 to 4.8kHz
Electrical Characteristics(4)
+4.75V ≤ VDD ≤ 5.5V, VSS = 0V; CAGC = 4.7μF, CTH = 2.2μF no preamble for data; fREFOSC = 3.36MHz. TA = 25°C, bold
values indicate –40°C ≤ TA ≤ +85°C; current flow into device pins is positive; unless noted.
Symbol Parameter
Condition
Min
Typ
Max Units
IOP
Operating Current
Continuous 315MHz operation
7
9
mA
continuous 433.92MHz operation
13
16
mA
reference oscillator powered down
2
2.5
mA
RF Section, IF Section
Receiver Sensitivity
315MHz, SEL0 = 0V; Notes 5, 6
–90
–95
dBm
fIF
IF Center Frequency
fBW
IF Bandwidth
433.92MHz, SEL0 = 0V; Notes 5, 6
Note 7
315MHz, Notes 6, 7
433.92MHz, Notes 6, 7
–90
–95
2.0
0.8
1.1
dBm
MHz
MHz
MHz
Maximum Receiver Input
Spurious Reverse Isolation
AGC Attack to Decay Ratio
Reference Oscillator
RSC = 50Ω
ANT pin, RSC = 50Ω, Note 8
tATTACK ÷ tDECAY
–20
dBm
30
µVRMS
0.1
Reference Oscillator Source
Current
7
µA
ZREFOSC
Reference Oscillator Input
Impedance
Note 9
200
kΩ
Demodulator
ZCTH
CTH Source Impedance
ΔZCTH
Maximum CTH Source
Impedance Variation
VSEL0 = VDD, See Table 1, Note 10
220
kΩ
±15
%
Digital/Control Section
ZIN(pu)
Input Pull-Up Impedance
IOUT
Output Current
VOUT(high) Output High Voltage
VOUT(low) Output Low Voltage
tR, tF
Output Rise and Fall Times
SEL0
DO pin, push-pull
DO pin, IOUT = 1μA
DO pin, IOUT = 1μA
DO pin, CLOAD = 15pF
1.0
0.8
MΩ
10
µA
0.8VDD
V
0.2VDD
V
10
µs
August 2008
3
M9999-080108
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