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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
+4.0
VDC
Any Input or Output Pin
-0.5
to VCC + 0.5
VDC
Operating Temperature
0
to
+70
°C
Storage Temperature
-40
to
+90
°C
Soldering Temperature
+216°C for 15 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. 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 VCC or PDN going high.
11. Maximum time without a data transition.
Notes
Table 1: ES Series Transmitter Specifications
Parameter
Designation
Min.
Typical
Max.
Units
Notes
POWER SUPPLY
Operating Voltage
VCC
2.1
3.0
4.0
VDC
–
Supply Current
ICC
5.5
7.0
8.5
mA
–
Power-Down Current
IPDN
–
90.0
–
µA
7
TRANSMIT SECTION
Transmit Frequency:
FC
TXM-916-ES
–
916.48
–
MHz
4
TXM-869-ES
–
869.85
–
MHz
4
Center Frequency Accuracy
–
-60
–
+60
kHz
1
Output Power
PO
-4
0
+4
dBm
2,3
Output Power Control Range
–
–
65
–
dB
2,3,7
Harmonic Emissions
PH
–
-55
-47
dBc
2
Frequency Deviation
TXM-916-ES
–
90
110
130
kHz
5
TXM-869-ES
–
–
75
130
kHz
5
Data Rate
–
200
–
56,000
bps
7
Analog/Audio Bandwidth
–
20
–
28,000
Hz
6,7
Data Input:
Logic Low
VIL
0.0
–
0.4
VDC
8
Logic High
VIH
3.0
–
5.2
VDC
8
Power-Down Input:
Logic Low
–
0.0
–
0.7
VDC
–
Logic High
–
1.5
–
VCC
VDC
–
Analog Input
–
0.0
–
5.0
VP-P
9
ANTENNA PORT
RF Output Impedance
ROUT
–50
–
Ω
7
TIMING
Transmitter Turn-On Time
–
0.1
0.5
1.5
mSec
7,10
Max. Time Between Transitions
–
–
–
5.0
mSec
7,11
ENVIRONMENTAL
Operating Temperature Range
–
0
–
+70
°C7
PERFORMANCE DATA
These performance parameters are
based on module operation at 25°C
from
a
3.0VDC
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
PDN
LADJ
VCC
LO_V_D
/CLK SE
/CLK
GND
DATA
ANT
GND
1
2
3
4
56
7
8
9
10
TYPICAL PERFORMANCE GRAPHS
CH1 2.00V
CH2 500mV
100uS
1
2
Tx VCC/PDN
Rx Demodulated Analog Data
RF Output Attenuation (dB)
-8.0
-6.0
-4.0
-2.0
-1.0
-0.4
-0.2
-10
40
35
30
25
20
15
Figure 5: Tx Powerup to Valid Rx Analog
Figure 3: Level Adjust Attenuation
CH1 1.66V
CH2 100mV
250uS
1
2
IN
OUT
Figure 4: Square-Wave Modulation Linearity
CH1 2.00V
CH2 2.00V
1mS
1
2
Tx VCC/PDN
RX Data
Figure 6: Tx Powerup to Valid Rx Data
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