Micrel
MICRF405
April 2006
5
M9999-041906
(408) 955-1690
Absolute Maximum Ratings
(1)
Supply Voltage (V
DD
).........................................+3.7V
Voltage on any pin
(3)
(GND = 0V)... -0.3V to 3.7V
Lead Temperature (soldering, 20sec.)............. 260癈
Storage Temperature (T
s
)................-55癈 to +150癈
ESD Rating
(4)
All pins except pin 4......................................2 kV
Pin 4 (RFOUT)............................................200 V
Operating Ratings
(2)
Supply voltage (V
IN
)............................+2.2V to +3.6V
RF Frequencies.......................... 290MHz to 980MHz
Data Rate (NRZ) ...........................................200kbps
Ambient Temperature (T
A
) ..............40癈 to +125癈
Package Thermal Resistance
MLF
?
(?/DIV>
JA
) ............................................41.7癈/W
Electrical Characteristics
f
RF
= 915MHz. V
DD
= 3.0V; T
A
= 25癈, bold values indicate 40癈<
T
A
<
+125癈, unless noted.
Parameter
Condition
Min
Typ
Max
Units
Freq_band=0
290
325
MHz
Freq_band=1
430
490
MHz
RF Frequency Operating Range
Freq_band=2-3
860
980
MHz
Power Supply
2.2
3.6
V
Power Down Current
0.3
礎
Standby Current
ClkOut_en=0
200
礎
PLL mode current
PA2-0=000, PA off
5.6
mA
VCO and PLL Section
Reference Frequency
4
40
MHz
1kHz loop filter bandwidth, Fphd=200kHz
7.0
ms
3kHz loop filter bandwidth, Fphd=500kHz
1.8
ms
PLL startup
30kHz loop filter bandwidth,
Fphd=1000kHz
140
祍
Standby-TX (PA on)
30kHz bandwidth
200
祍
Crystal Oscillator Start-Up Time
16MHz, 9pF load, XCO_Fast=1
300
祍
Charge Pump Current
V
CPOUT
= 1.2V, CP_CUR = 3
100
礎
Transmit Section
R
LOAD
= 250&, Pa2-0=111
10
dBm
Output Power
R
LOAD
= 250&, Pa2-0=001
-7
dBm
Over temperature range
1.5
dB
Output Power Tolerance
Over power supply range
3.0
dB
R
LOAD
= 150&, PA2-0=111
18
mA
R
LOAD
= 150&, PA2-0=001
9.6
mA
Tx Current Consumption
RLOAD = 150&, PA2-0=000
5.6
mA
ASK=7 (OOK)
60
dB
Modulation depth ASK/OOK
ASK=6
20
dB
Binary FSK Frequency Deviation
(5)
Bitrate = 200kbps
300
kHz
VCO modulation
20
200
kbps
Divider modulation
20
kbps
Data Rate
(5)
ASK
50
kbps
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