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MICRF104 Datasheet(PDF) 3 Page - Micrel Semiconductor

Part No. MICRF104
Description  1.8V, QwikRadio™ UHF ASK Transmitter
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Maker  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MICRF104 Datasheet(HTML) 3 Page - Micrel Semiconductor

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November 8, 2001
3
MICRF104
MICRF104
Micrel
Electrical Characteristics
Specifications apply for V
DDPWR = 1.8V, VPC = 0.35V, freqREFOSC = 12.1875MHz, RFSTBY = VDDRF, EN = VDDPWR.
T
A = 25°C, bold values indicate 0°C ≤ TA ≤ 85°C unless otherwise noted.
Parameter
Condition
Min
Typ
Max
Units
Power Supply
Shutdown current, I
VDDPWR
EN = RFSTBY = V
SS
50
µA
RF Standby supply, I
VDDPWR
RFSTBY = V
SS, EN = VDDPWR
1.5
mA
RF Standby supply, I
VDDPWR
RFSTBY = V
SS, EN = VDDPWR = 4V
0.6
mA
MARK supply current, I
ON
Note 4,
31
41
mA
Note 4, V
DDPWR = 4V
12
17
mA
SPACE supply current, I
OFF
22
30
mA
V
DDPWR = 4V
9
12
mA
Mean operating current
33% mark/space ratio, Note 4
25
34
mA
33% mark/space ratio, V
DDRWR = 4V, Note 4
10
14
mA
5V Max. output current
15
mA
Note 9, V
DDPWR = 4V
35
mA
5V Output Voltage range
Note 9
4.75
5.25
V
RF Output Section and Modulation Limits:
Output power level, P
OUT
@315MHz; Note 4, Note 5
–2
dBm
@433MHz; Note 4, Note 5
–2.5
dBm
Transmitted Power
@315MHz
tbd
µV/m
@433MHz
tbd
µV/m
Harmonics output
@ 315MHz
2nd harm.
–46
dBc
3rd harm.
–45
@433 MHz
2nd harm.
–50
dBc
3rd harm.
–41
Extinction ratio for ASK
40
52
dBc
Varactor tuning range
Note 7
5
6.5
8
pF
Reference Oscillator Section
Reference Oscillator Input
300
k
Impedance
Reference Oscillator Source
6
µA
Current
Reference Oscillator Input
0.2
0.5
V
PP
Voltage (peak to peak)
Absolute Maximum Ratings (Note 1)
Supply Voltage(V
DDPWR, VDDRF) .................................. +6V
Voltage on I/O Pin EN .................................................. [tbd]
Voltage on I/O Pins, RFSTBY, ASK, PC, ANTP, ANTM
V
SS–0.3 to VDD+0.3
Storage Temperature Range ................... -65
°C to + 150°C
Lead Temperature (soldering, 10 seconds) ........... + 300
°C
ESD Rating .............................................................. Note 3
Operating Ratings (Note 2)
Supply Voltage (V
DDPWR) .................................. 1.8V to 4V
PC Input Range .................................. 0.15V < V
PC < 0.35V
Ambient Operating Temperature (T
A) ............ 0°C to +85°C
Programmable Transmitter Frequency Range: 300MHz to
470MHz


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