≤ +85°C; current flow into device pins is positive;
unless noted.
Symbol
I
OP
Parameter
Operating Current at 315.0MHz
Operating Current at 433.92MHz
I
STBY
Standby Current
Receiver Sensitivity
f
IF
IF Center Frequency
IF Bandwidth
Maximum Receiver Input
Spurious Reverse Isolation
AGC Attack to Decay Ratio
AGC Leakage Current
Reference Oscillator
(9)
Reference Oscillator
Stabilization Time
Z
REFOSC
Demodulator
Z
CTH
ΔZ
CTH
C
TH
Source Impedance Variation
Demodulator Filter Bandwidth
Input Pull-Up Current
Input High Voltage
Input Low Voltage
C
TH
Leakage Current
C
TH
Source Impedance
Note 10
–15
T
A
= +85°C
Note 7
±50
2.5
8
0.8V
DD
0.2V
DD
110
+15
kΩ
%
nA
kHz
µA
V
V
Reference Oscillator Input Impedance
Reference Oscillator Source Current
f
BW
Condition
continuous operation
polled with 10:1 duty cycle
continuous operation
polled with 10:1 duty cycle
RF Section, IF Section
V
SHUT
= V
DD
f
RF
= 433.92MHz, 1.2kbps
Note 7
Notes 6, 7
Ref. Impedance = 50Ω
ANT pin, Ref. Impedance = 50Ω
(8)
t
ATTACK
÷
t
DECAY
T
A
= +85°C
0.4
Min
Typ
2.3
230
3.8
470
0.9
–99
1.18
0.70
–20
30
10
±50
2.5
290
5.2
nA
ms
kΩ
µA
2
5.7
Max
3.5
Units
mA
µA
mA
µA
µA
dBm
MHz
MHz
dBm
µVrms
to 1% of final value
I
ZCTH(leak)
Digital/Control Section
I
IN(pu)
V
IH
V
IL
V
SHUT
= V
SS
V
SHUT
= V
SS
V
SHUT
= V
SS
February 17, 2005
3
M9999-021705
MICRF007
Symbol
I
OH
I
OL
V
OH
V
OL
t
R
, t
F
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are E½
MIL-STD-883C, method 3015. Do not operate or store near strong electrostatic fields.
4. Specification for packaged product only.
Micrel
Parameter
Output High Current
Output Low Current
Output High Voltage
Output Low Voltage
Output Rise and Fall Times
DO, I
OUT
= –1µA
DO, I
OUT
= +1µA
0.9V
DD
10
Condition
Min
Typ
20.8
17.6
0.1V
DD
Max
Units
µA
µA
V
V
µs
DO, C
LOAD
= 15pF
5. 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 (Manchester encoded data) at a data rate of 600bps. The RF input is assumed to
be matched into 50Ω.
6. Sensitivity, a commonly specified receiver parameter, provides an indication of the receiver’s input referred noise, generally input thermal noise.
However, it is possibl½
noise is appreciab½
A better indicator of achievable receiver range performance is usually given by its selectivity, often stated as intermediate frequency (IF) or radio
frequency (RF) bandwidth, depending on receiver topology. Selectivity is a measure of the rejection by the receiver of ambient noise. More selective
receivers will almost inva½
-
ally thermal will the receiver demonstrate sensitivity-limited performance.
7. Parameter scales linearly with reference oscillator frequency f
T
. For any reference oscillator frequency other than 6.7458MHz, compute the param-
eter value as the ratio:
f
T
MHz
6.7458
× (parameter value at 6.7458MHz)
Example: For reference oscillator freqency f
T
= 6.00MHz:
6.7458
(parameter value at 6.00MHz)=
× (parameter value at 6.7458MHz)
6.00
8. Spurious reve½
ing network.
-
9. Series resistance ½
resistance is too great, the oscillator may oscillate at a diminished peak-to-peak level, or may fail to oscillate entirely. Micrel recommends that series
resistances for ceramic resonators and crystals not exceed 50Ω and 100Ω respectively. Refer to “Application Hint 35” for crystal recommendations.
10.
Parameter scales inversely with reference oscillator frequency f
T
. For any reference oscillator frequency other than 6.7458MHz, compute the
