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Micrel, Inc.
MICRF213
Symbol
Parameter
Condition
Min
Typ
Max
Units
Demodulator
CTH Source Impedance
CTH Leakage Current
Demodulator Filter
Bandwidth @ 315MHz
(Programmable, see
application section)
F REFOSC = 9.81563MHz
T A = 25oC
T A = +105oC
SEL0=0, SEL1=0
SEL0=1, SEL1=0
SEL0=0, SEL1=1
SEL0=1, SEL1=1
165
±2
±800
1180
2360
4720
9400
k ?
nA
nA
Hz
Digital / Control Functions
DO pin output current
As output
source @ 0.8Vdd
260
μA
sink @ 0.2Vdd
600
Output rise and fall times
CI = 15pF, pin DO, 10-90%
2
μsec
RSSI
RSSI DC Output Voltage
-110dBm to -50dBm
0.4 – 1.9
V
Range
RSSI response slope
RSSI Output Current
RSSI Output Impedance
RSSI Response Time
-110dBm to -50dBm
±15
50% data duty cycle, input power to Antenna = -
20 dBm
25
400
200
0.3
mV/dB
μA
?
Sec
Notes:
1.
2.
3.
4.
5.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside of its operating rating.
Device is ESD sensitive. Use appropriate ESD precautions. Exceeding the absolute maximum rating may damage the device.
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) at a data rate of 1kbps.
When data burst does not contain preamble, duty cycle is defined as total duty cycle, including any “quiet” time between data bursts. When
data bursts contain preamble sufficient to charge the slice level on capacitor C TH , then duty cycle is the effective duty cycle of the burst alone.
[For example, 100msec burst with 50% duty cycle, and 100msec “quiet” time between bursts. If burst includes preamble, duty cycle is
Ton/(Ton+Toff) = 50%; without preamble, duty cycle is Ton/(Ton+ Toff + Tquiet) = 50msec/(200msec)=25%. Ton is the (Average number of
1’s/burst) x bit time, and Toff = Tburst -Ton.)
May 2007
4
M9999-052307-A
(408) 944-0800
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