Micrel, Inc.
MICRF002/RF022
Absolute Maximum Ratings
(1)
Supply Voltage (V
DDRF
, V
DDBB
)........................................+7V
Input/Output Voltage (V
I/O
). ....................V
SS
–0.3 to V
DD
+0.3
Junction Temperature (T
J
) ....................................... +150°C
Storage Temperature (T
s
) ........................... –65°C to 150°C
Lead Temperature (soldering, 10 sec.)...................... 260°C
ESD Rating
(3)
Operating Ratings
(2)
Supply Voltage (V
DDRF
, V
DDBB
).................... +4.75V to +5.5V
RF Frequency Range.............................. 300MHz to 440Hz
Data Duty-Cycle ................................................20% to 80%
Reference Oscillator Input Range.............. 0.1V
PP
to 1.5V
PP
Ambient Temperature (T
A
) .......................... –40°C to +85°C
Electrical Characteristics
(4)
V
DDRF
= V
DDBB
= V
DD
where +4.75V
≤
V
DD
≤
5.5V, V
SS
= 0V; C
AGC
= 4.7µF, C
TH
= 100nF; SEL0 = SEL1 = V
SS
; fixed mode
(SWEN = V
SS
); f
REFOSC
= 4.8970MHz (equivalent to f
RF
= 315MHz); data-rate = 1kbps (Manchester encoded). T
A
= 25°C,
bold
values indicate –40°C
≤
T
A
≤
+85°C; current flow into device pins is positive; unless noted.
Symbol
I
OP
Parameter
Operating Current
Condition
continuous operation, f
RF
= 315MHz
polled with 10:1 duty cycle, f
RF
= 315MHz
continuous operation, f
RF
= 433.92MHz
polled with 10:1 duty cycle, f
RF
= 433.92MHz
Min
Typ
2.2
220
3.5
350
0.9
–97
–95
0.86
0.43
–20
30
0.1
±100
290
5.2
Max
3.2
Units
mA
µA
mA
µA
µA
dBm
dBm
MHz
MHz
dBm
µV
RMS
nA
kΩ
µA
I
STBY
Standby Current
Receiver Sensitivity (
Note 4
)
V
SHUT
= V
DD
f
RF
= 315MHz
f
RF
= 433.92MHz
RF Section, IF Section
f
IF
f
BW
IF Center Frequency
IF Bandwidth
Maximum Receiver Input
Spurious Reverse Isolation
AGC Attack to Decay Ratio
AGC Leakage Current
Note 6
Note 6
R
SC
= 50Ω
ANT pin, R
SC
= 50Ω,
Note 5
t
ATTACK
÷ t
DECAY
T
A
= +85°C
Reference Oscillator
Z
REFOSC
Reference Oscillator Input
Impedance
Reference Oscillator Source
Current
Note 8
Demodulator
Z
CTH
I
ZCTH(leak)
CTH Source Impedance
CTH Leakage Current
Demodulator Filter Bandwidth
Sweep Mode
(SWEN = VDD or OPEN)
Note 6
Demodulator Filter Bandwidth
Fixed Mode
(SWEN = VSS)
Note 6
Note 7
T
A
= +85°C
V
SEL0
= V
DD
. V
SEL1
= V
DD
V
SEL0
= V
SS
. V
SEL1
= V
DD
V
SEL0
= V
DD
. V
SEL1
= V
SS
V
SEL0
= V
SS
. V
SEL1
= V
SS
V
SEL0
= V
DD
. V
SEL1
= V
DD
V
SEL0
= V
SS
. V
SEL1
= V
DD
V
SEL0
= V
DD
. V
SEL1
= V
SS
V
SEL0
= V
SS
. V
SEL1
= V
SS
145
±100
4000
2000
1000
500
8000
4000
2000
1000
kΩ
nA
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
July 2008
4
M9999-070808
MICREL [ MICREL SEMICONDUCTOR ]
