SA1638 Datasheet, PDF (19/26 Pages) NXP Semiconductors – Low voltage IF I/Q transceiver

Philips Semiconductors
Low voltage IF I/Q transceiver
Product specification
SA1638
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Transmitter Output Saturation vs.
Temperature and VccTxRx
-50
-52
-54
-56 ^2.7V
3.0V
-58
-60 ^4.0V
TXIFOUT=TXIFOUTX=VccTxRx–0.3V
-62 5.5V
-64
-66
-68
-70
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
Transmitter RMS Output Current
vs. Temperature and V_CCTxRx
1.1
1.05
1
0.95
IF=400MHz
0.9 5.5V
0.85 ^4.0V
3.0V
0.8 _2.7V
0.75
0.7
0.65
0.6
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
Transmitter DC Output Current vs.
Temperature and V_CCTxRx
2.5
2.4
2.3
2.2
2.1 ^5.5V
4.0V
2
3.0V
1.9 _2.7V
1.8
1.7
1.6
1.5
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
Transmitter LO Suppression vs.
Temperature and VccTxRx
-36.0
-38.0
5.5V
-40.0 _4.0V
-42.0
-44.0
3.0V
2.7V
-46.0
-48.0
-50.0
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
Transmitter Side Band Suppresion vs.
V_CCTxRx and Temperature
-35
-40
5.5V
-45 _4.0V
3.0V
-50 _2.7V
-55
-60
-65
-70
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
Transmit Noise Floor vs Temperature and Supply Voltage
-126
-127
Baseband Input = 1.5V_P-P differential, 30kHz
-128
-129
-130
-131
600kHz from Carrier
5.5V
4V
3V
2.7V
-132
-133
-134
5.5V
4V
3V
2.7V
-135
10MHz from Carrier
-136
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
1997 Sept 03
Figure 12. Typical Performance Characteristics (continued)
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