MICRF008 Просмотр технического описания (PDF) - Micrel
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MICRF008 Datasheet PDF : 12 Pages
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MICRF008
Absolute Maximum Ratings (Note 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 Range (TS) ............ –65°C to +150°C
Lead Temperature (soldering, 10 sec.) ................... +260°C
ESD Rating, Note 3
Micrel
Operating Ratings (Note 2)
Supply Voltage (VDD) ................................ +4.75V to +5.5V
Ambient Temperature (TA) ......................... –40°C to +85°C
RF Operating Range ........................... 300MHz to 440MHz
Data Duty Cycle ............................................... 20% to 80%
Reference Oscillator Input Range ............ 0.2VPP to 1.5VPP
Demod Bandwidth .......................................... 0.1 to 4.8kHz
Electrical Characteristics (Note 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
continuous 433.92MHz operation
7
9
mA
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
433.92MHz, SEL0 = 0V; Notes 5, 6
–90 –95
dBm
fIF
IF Center Frequency
fBW
IF Bandwidth
Note 7
315MHz; Note 6, 7
433.92MHz; Note 6, 7
2.0
MHz
0.8
MHz
1.1
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
∆ZCTH
CTH Source Impedance
Maximum CTH Source Impedance
Variation
VSEL0 = VDD, See Table 1, Note 10
220
kΩ
±15
%
Digital/Control Section
ZIN(pu)
IOUT
VOUT(high)
VOUT(low)
tR, tF
Input Pull-Up Impedance
Output Current
Output High Voltage
Output Low Voltage
Output Rise and Fall Times
SEL0
DO pin, push-pull
DO pin, IOUT = 1µA
DO pin, IOUT = 1µA
DO pin, CLOAD = 15pF
1.0
MΩ
10
µA
0.8VDD
V
0.2VDD V
10
µs
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
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.
Specification for packaged product only.
Sensitivity is defined as the average signal level measured at the input necessary to achieve 10–2 BER (bit error rate). The input signal is
defined as a return-to-zero (RZ) waveform with 50% average duty cycle at a data rate of 1kbps (Manchester encoded). The RF input is
assumed to be matched into 50Ω.
July 2003
3
MICRF008
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