HFA3783 Datasheet, PDF (31/34 Pages) Intersil Corporation – I/Q Modulator/Demodulator and Synthesizer

HFA3783
Typical Performance Curves (Continued)
0.25
0.8
0.20
0.6
0.15
PHASE ERROR
0.4
0.10
0.05
AMP ERROR
0.2
0
0
-0.05
-0.2
-0.10
-0.4
-0.15
-0.20
-0.6
-0.25
-0.8
-150 -100 -50
0
50 100 150 200
NOMINAL ANGLE
FIGURE 43. TYPICAL TX CARRIER STATIC AMPLITUDE AND
PHASE BALANCE AT 250mV DC DIFFERENTIAL
BB INPUTS
90
80
70
60
50
40
30
20
10
0
-10
0
0.5
1.0
1.5
2.0
2.5
3.0
VAGC (V)
FIGURE 44. TX INSERTION PHASE vs VAGC
CH1
IF OUTPUT
CH1
CH2 VAGC
IF OUTPUT
CH1, 200mV CH2, 1.00V 200ns/DIV
FIGURE 45. TX AGC RESPONSE TIME, FULL GAIN
IF OUTPUT
AT FULL GAIN
PE2 PE1 = 1
CH1
CH2
CH1, 200mV CH2 2.00V 50ns/DIV
FIGURE 47. RX TO TX IF OUTPUT SWITCHING TIME
31
VAGC
CH2
CH1, 200mV CH2, 1.00V 200ns/DIV
FIGURE 46. TX AGC RESPONSE TIME, FULL GAIN
IF OUTPUT
AT FULL GAIN
CH1
PE2 PE1 = 1
CH2
CH1, 200mV CH2 2.00V 50ns/DIV
FIGURE 48. TX TO RX IF OUTPUT SWITCHING TIME