Linx Technologies TRM-xxx-LT - Manual (Page 5)

– – – – 4 5
LT Series Transceiver Specifications Continued
Parameter Symbol Min. Typ. Max. Units Notes
Transmitter Section
Output Power P
O
+9.2 +11 dBm 1,6
With a 750 Ω resistor
on LADJ
P
O
–4 0.0 4 dBm 2,6
Output Power Control
Range
–30 MAX dB 9
Harmonic Emissions P
H
–36 dBc 6
Antenna Port
RF Input Impedance R
IN
50 Ω 9
Timing
Receiver Turn-On Time
Via V
CC
2.2 ms 8,9
Via PDN 0.25 ms 8,9
Max. Time Between
Transitions
15.0 ms 9
Transmtiter Turn-On Time
Via V
CC
2.0 ms 9
Via PDN 500 µs 9
Modulation Delay 30.0 ns 9
Transmit to Receive
Switch Time
180 400 µs 9
Receive to Transmit
Switch Time
490 1000 µs 9
Dwell Time 290 µs 9,11
Environmental
Operating Temperature
Range
–40 +85 ºC 9
1. With a 0 Ω resistor on LADJ
2. With a 750 Ω resistor on LADJ
3. I
SINK
= 500µA
4. I
SOURCE
= 500µA
5. I
SINK
= 20µA
6. Into a 50 Ω load
7. With a 50% square wave at 1,000bps
8. Time to valid data output
9. Characterized, but not tested
10. Receive Mode on power down (see
Using the PDN Line section)
11. Minimum time before mode change
Figure 4: Electrical Specifications
Typical Performance Graphs
0
1
2
3
4
5
6
7
8
9
10
12.00 9.00 6.00 3.00 0.00 -3.00 -6.00 -9.00 -12.00 -15.00 -18.00 -21.00
Output Power (dBm)
LADJ Resistance (k
Ω
)
Figure 5: Output Power vs. LADJ Resistance
0
2
4
6
8
10
12
14
16
10 8 6 4 2 0 -2 -4 -6 -8 -10 -12 -14
Output Power (dBm)
Supply Current (mA
)
Figure 6: Output Power vs. Current Consumption
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
-115 -110 -105 -100 -95 -90 -85 -80 -75 -70 -65 -60 -55 -50 -45 -40 -35 -30
RF IN (dBm)
VRSSI (V)
Figure 7: RSSI Curve