TRF3722_15 Datasheet, PDF (15/67 Pages) Texas Instruments – TRF3722 Quadrature Modulator with Integrated PLL and VCO

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TRF3722
SLWS245A – MAY 2014 – REVISED JUNE 2014
7.12 Typical Characteristics - Noise
Unless specified all plots were created using TRF3722EVM, VCC = 3.3 V, VCC_TK = 5 V, T_A = 25°C, BB inputs terminated to
50 ohms and 4.7 pF series capacitor at RFOUT. Optimized bias settings as per Table 16.
-150
-150
-152
-152
-154
-154
-156
-156
-158
-158
-160
-160
-162
-162
-164
-164
-166
-168
-170
200
T_A = -40GC
T_A = 25GC
T_A = 85GC
600 1000 1400 1800 2200 2600
Frequency (MHz)
D045
-166
-168
-170
200
V_CC = 3.15V, 4.75V
V_CC = 3.30V, 5.00V
V_CC = 3.45V, 5.25V
600 1000 1400 1800 2200 2600
Frequency (MHz)
D046
Figure 32. Noise vs Temperature, Typical Operating Mode
-150
-152
-154
-156
-158
-160
-162
-164
-166
-168
-170
200
T_A = -40GC
T_A = 25GC
T_A = 85GC
600 1000 1400 1800 2200 2600
Frequency (MHz)
D047
Figure 33. Noise vs Supply, Typical Operating Mode
-150
-152
-154
-156
-158
-160
-162
-164
-166
-168
-170
200
V_CC = 3.15V, 4.75V
V_CC = 3.30V, 5.00V
V_CC = 3.45V, 5.25V
600 1000 1400 1800 2200 2600
Frequency (MHz)
D048
Figure 34. Noise vs Temperature, High Gain Mode
-150
-152
-154
-156
-158
-160
-162
-164
-166
-168
-170
200
T_A = -40GC
T_A = 25GC
T_A = 85GC
600 1000 1400 1800 2200 2600
Frequency (MHz)
D049
Figure 35. Noise vs Supply, High Gain Mode
-150
-152
-154
-156
-158
-160
-162
-164
-166
-168
-170
200
V_CC = 3.15V, 4.75V
V_CC = 3.30V, 5.00V
V_CC = 3.45V, 5.25V
600 1000 1400 1800 2200 2600
Frequency (MHz)
D050
Figure 36. Noise vs Temperature, Low Power Mode
Figure 37. Noise vs Supply, Low Power Mode
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