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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

-0.3

to

+6.0

VDC

Any Input or Output Pin

-0.3

to

VDC

Operating Temperature

-30

to

+70

°C

Storage Temperature

-45

to

+85

°C

Soldering Temperature

+225°C for 10 seconds

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

2.7

–

5.2

VDC

–

Supply Current

–

3.0

6.0

mA

1,4

Power-down Current

––

1.5

µA

2

TRANSMITTER SECTION

Transmit Frequency:

TXM-315-LC

–

315

–

MHz

–

TXM-418-LC

–

418

–

MHz

–

TXM-433-LC

–

433.92

–

MHz

–

Center Frequency Accuracy

–

-75

–

+75

kHz

–

Output Power

-4

0

+4

dBm

3

Harmonic Emissions

–

–

-36

dBc

3

Data Rate

–

100

–

5,000

bps

–

Data Input:

Logic Low

0.0

–

0.4

VDC

–

Logic High

2.5

–

Vcc

VDC

–

ANTENNA PORT

RF Output Impedance

–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

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