ELECTRICAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Parameter
Designation
Min.
Typical
Max.
Units
Notes
POWER SUPPLY
Operating Voltage
Supply Current
Power-Down Current
V CC
I CC
I PDN
2.1
5.5
3.0
7.0
90.0
4.0
8.5
VDC
mA
μA
7
Supply voltage V CC
Any Input or Output Pin
Operating Temperature
Storage Temperature
Soldering Temperature
-0.3
-0.5
0
-40
+216°C
to +4.0
to V CC + 0.5
to +70
to +90
for 15 seconds
VDC
VDC
°C
°C
TRANSMIT SECTION
Transmit Frequency:
F C
*NOTE* Exceeding any of the limits of this section may lead to permanent
damage to the device. Furthermore, extended operation at these maximum
TXM-916-ES
TXM-869-ES
916.48
869.85
MHz
MHz
4
4
ratings may reduce the life of this device.
Center Frequency Accuracy
Output Power
Output Power Control Range
Harmonic Emissions
P O
P H
-60
-3
0
65
-55
+60
+4
-47
kHz
dBm
dB
dBc
1
2,3
2,3,7
2
PERFORMANCE DATA
These performance parameters are
based on module operation at 25°C
Frequency Deviation
TXM-916-ES
TXM-869-ES
Data Rate
F DEV
80
70
200
130
130
56,000
kHz
kHz
bps
5
5
7
from a 3.0VDC supply unless
otherwise noted. Figure 2 illustrates
the connections necessary for
testing and operation. It is
1
2
3
PDN ANT
LADJ GND
VCC LO_V_D
10
9
8
Analog/Audio Bandwidth
20
28,000
Hz
6,7
recommended all ground pins be
4
GND
/CLK SE
7
Data Input:
connected to the ground plane.
5
DATA
/CLK
6
Logic Low
V IL
0.0
0.4
VDC
8
Logic High
Power-Down Input:
Logic Low
Logic High
Analog Input
V IH
3.0
0.0
1.5
0.0
5.2
0.7
V CC
5.0
VDC
VDC
VDC
V P-P
8
9
Figure 2: Test / Basic Application Circuit
TYPICAL PERFORMANCE GRAPHS
ANTENNA PORT
40
RF Output Impedance
TIMING
Transmitter Turn-On Time
Max. Time Between Transitions
R OUT
0.1
50
0.5
1.5
5.0
Ω
mSec
mSec
7
7,10
7,11
35
30
1
IN
ENVIRONMENTAL
25
Operating Temperature Range
0
+70
° C
7
20
OUT
Table 1: ES Series Transmitter Specifications
15
-10
-8.0
-6.0 -4.0 -2.0 -1.0
-0.4
-0.2
Notes
RF Output Attenuation (dB)
2
CH1 1.66V
CH2 100mV
250uS
1. Center frequency measured while modulated with a 0-5V square wave.
2. Into a 50-ohm load.
3. LADJ open.
4. Maximum power when LADJ open, minimum power when LADJ grounded.
5. DATA pin modulated with a 0-5V square wave.
6. The audio bandwidth is wide to accommodate the needs of the data slicer.
7. Characterized, but not tested.
8. The ES is optimized for both 0-5V and 0-3V modulation when sending digital data.
9. Analog signals, including audio, should be AC-coupled.
10. Time to transmitter readiness from the application of power to V CC or PDN going high.
11. Maximum time without a data transition.
Figure 3: Level Adjust Attenuation
Tx VCC/PDN
1
Figure 4: Square-Wave Modulation Linearity
Tx VCC/PDN
1
*CAUTION*
This product incorporates numerous static-sensitive components.
Always wear an ESD wrist strap and observe proper ESD handling
Rx Demodulated Analog Data
2
RX Data
procedures when working with this device. Failure to observe this
2
CH1 2.00V
CH2 500mV
100uS
CH1 2.00V
CH2 2.00V
1mS
Page 2
precaution may result in module damage or failure.
Figure 5: Tx Powerup to Valid Rx Analog
Figure 6: Tx Powerup to Valid Rx Data
Page 3
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