TRF372017_16 Datasheet, PDF (22/60 Pages) Texas Instruments – Integrated IQ Modulator PLL/VCO

TRF372017
SLWS224E – AUGUST 2010 – REVISED JANUARY 2016
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Typical Characteristics (continued)
V_CM = 1.7 V (internal), V_inBB = 300 mVrms single-ended sine wave in quadrature, V_CC3V = 3.3 V, V_CC5V = 5 V, f_BB = 4.5 MHz
and 5.5 MHz, internal LO, T_A = 25°C; F_PFD = 1.6 MHz (unless otherwise noted).
-34
-39
TA = -40°C
-36
-38
f = 2150 MHz
-40
-41 ^{f = 2700 MHz}
-40
TA = 25°C
-42
-44
TA = 85°C
-46
-42
-43
-44
-45
f = 900 MHz
-46
-48
-47
f = 1500 MHz
-50
-52
2760 2770 2780 2790 2800 2810 2820 2830 2840 2850
Frequency (MHz)
G072
Figure 75. Unadjusted Carrier Suppression
vs Frequency and Temperature at 2850 MHz
2
1.9
-48
f = 750 MHz
TA = 25°C
-49
1.5 1.55 1.6 1.65 1.7 1.75 1.8 1.85 1.9 1.95
Common-Mode Voltage (V)
2
G073
Figure 76. Unadjusted Carrier Suppression
vs Common-Mode Voltage and Frequency
20
TA = -40°C
15
TA = 25°C
TA = 85°C
10
1.8
TA = 25°C
1.7
1.6
1.5
TA = -40°C
TA = 85°C
5
0
DCOFFSET_I = 1
-5
-10
-15
DCOFFSET_I = 3
-20
-25
1.4
0
1
2
3
4
5
6
7
VREF_SEL Setting
G074
Figure 77. Common-Mode Voltage
vs VREF_SEL Setting and Temperature
-30
0
30 60 90 120 150 180 210 240
IOFF Setting
G075
Figure 78. Baseband Voltage Offset
vs IOFF Setting and Temperature
22
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