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ELECTRICAL SPECIFICATIONS
*CAUTION*
This product incorporates numerous static-sensitive components.
Always wear an ESD wrist strap and observe proper ESD handling
procedures when working with this device. Failure to observe this
precaution may result in module damage or failure.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage VCC
-0.3
to
+6.0
VDC
Any Input or Output Pin
-0.3
to
VCC
VDC
Operating Temperature
-30
to
+70
°C
Storage Temperature
-45
to
+85
°C
Soldering Temperature
+225°C for 10 seconds
*NOTE* Exceeding any of the limits of this section may lead to permanent
damage to the device. Furthermore, extended operation at these maximum
ratings may reduce the life of this device.
1. Current draw with DATA pin held continuously high.
2. Current draw with DATA pin low.
3. RF out connected to a 50
Ω load.
4. LADJ through 430
Ω resistor.
5. Characterized, but not tested.
Notes
Table 1: LC Series Transmitter Specifications
Parameter
Designation
Min.
Typical
Max.
Units
Notes
POWER SUPPLY
Operating Voltage
VCC
2.7
–
5.2
VDC
–
Supply Current
ICC
–
3.0
6.0
mA
1,4
Power-down Current
IPDN
–
–
1.5
µA
2
TRANSMITTER SECTION
Transmit Frequency:
FC
TXM-315-LC
–
315
–
MHz
–
TXM-418-LC
–
418
–
MHz
–
TXM-433-LC
–
433.92
–
MHz
–
Center Frequency Accuracy
–
-50
–
+50
kHz
–
Output Power
Po
-4
0
+4
dBm
3
Harmonic Emissions
PH
–
–
-40
dBc
3
Data Rate
–
100
–
5,000
bps
–
Data Input:
Logic Low
VIL
0.0
–
0.4
VDC
–
Logic High
VIH
2.5
–
Vcc
VDC
–
ANTENNA PORT
RF Output Impedance
ROUT
–50
–
Ω
5
TIMING
Transmitter Turn-On Time
–
–
30
80
µSec
5
Transmitter Turn-Off Time
–
–
–
100
nSec
5
ENVIRONMENTAL
Operating Temperature Range
–
-30
–
+70
°C5
PERFORMANCE DATA
These performance parameters
are based on module operation at
25°C from a 3.3VDC supply unless
otherwise
noted.
Figure
2
illustrates
the
connections
necessary
for
testing
and
operation. It is recommended all
ground pins be connected to the
ground plane.
Figure 2: Test / Basic Application Circuit
GND
DATA
GND
GND
ANT
LADJ/GND
GND
VCC
1
2
3
4
5
6
7
8
VCC
TYPICAL PERFORMANCE GRAPHS
2.5
3.0
3.5
4.0
4.5
5.0
Supply Voltage (V)
1
3
2
4
5
6
7
8
9
10
11
12
0
With 430
Ω resistor on LADJ
With LADJ tied to ground
0
-1
-4
-5
2.5
3.0
3.5
4.0
4.5
-2
-3
Supply Voltage (V)
+1
+3
+2
+4
+5
+6
+7
+8
5.0
With 430
Ω resistor on LADJ
With LADJ tied to ground
+8
+7
+6
+5
+4
+3
+2
+1
0
-1
-2
-3
-4
LADJ Resistor Value (
Ω)
51
100 150 200 240 300 360 430 510 560 620 680 750 820 910 1.1K
3V
5V
Figure 3: Current vs. Supply Voltage
Figure 4: Output Power vs. Supply Voltage
Figure 6: Typical Oscillator Turn-Off Time
Figure 5: Typical Oscillator Turn-On Time
Figure 7: Output Power vs. LADJ Resistor
Data
Data
Carrier
Carrier
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