HFA3783 Datasheet, PDF (32/34 Pages) Intersil Corporation – I/Q Modulator/Demodulator and Synthesizer

HFA3783
Typical Performance Curves (Continued)
IF OUTPUT
AT FULL GAIN
CH1
PE1 PE2 = 0
CH1
CH2
CH1, 200mV CH2 2.00V 50ns/DIV
FIGURE 49. TX IF OUTPUT AT POWER UP
-12
-13
-14
-15
-16
-17
REFER TO TEST DIAGRAM
-18
-19
70
170 270 370 470 570 670 770 870
FREQUENCY (MHz)
FIGURE 51. TX OUT POWER vs FREQUENCY, BB AT DC
-30
-40
CTR FREQ = 748MHz
SPAN = 100kHz
-50 ^{RES BW = 1kHz}
VBW = 100Hz
-60
REF LEVEL -30dBm
-70
-80
-90
-100
-110
-120
-130
FIGURE 53. EVAL BOARD TYPICAL SYNTHESIZER OUTPUT
WITH PLL AT 10kHz BW
32
PE1 PE2 = 0
CH2
CH1 200mV CH2 2.00V 50.0ns/DIV
FIGURE 50. TX IF OUTPUT AT POWER DOWN
-30
REF LEVEL
-40 _-30dBm
-50
-60
-70
-80
-90
-100
-110
-120
-130
CTR FREQ = 748kHz
SPAN = 5kHz
RES BW = 100Hz
VBW = 100Hz
-75.5dBc/Hz
FIGURE 52. EVAL BOARD TYPICAL SYNTHESIZER CLOSE IN
PHASE NOISE
-30
CTR FREQ = 748MHz
-40 _{SPAN = 100kHz}
RES BW = 1kHz
-50 _{VBW = 100Hz}
-60
REF LEVEL -30dBm
-70
-80
-90
-100
-110
-120
-130
FIGURE 54. EVAL BOARD TYPICAL SYNTHESIZER OUTPUT
WITH PLL AT 1kHz BW