Texas Instruments TRF3722 EVM, Manual

Page: 15 / 69

Frequency (MHz)
NS
D
(dBm/Hz
)
200 600 1000 1400 1800 2200 2600
-170
-168
-166
-164
-162
-160
-158
-156
-154
-152
-150
D049
T
A
= -40 q C
T
A
= 25
q
C
T
A
= 85
q
C
Frequency (MHz)
NS
D
(dBm/Hz
)
200 600 1000 1400 1800 2200 2600
-170
-168
-166
-164
-162
-160
-158
-156
-154
-152
-150
D050
V
CC
= 3.15V, 4.75V
V
CC
= 3.30V, 5.00V
V
CC
= 3.45V, 5.25V
Frequency (MHz)
NS
D
(dBm/Hz
)
200 600 1000 1400 1800 2200 2600
-170
-168
-166
-164
-162
-160
-158
-156
-154
-152
-150
D047
T
A
= -40 q C
T
A
= 25 q C
T
A
= 85
q
C
Frequency (MHz)
NS
D
(dBm/Hz
)
200 600 1000 1400 1800 2200 2600
-170
-168
-166
-164
-162
-160
-158
-156
-154
-152
-150
D048
V
CC
= 3.15V, 4.75V
V
CC
= 3.30V, 5.00V
V
CC
= 3.45V, 5.25V
Frequency (MHz)
NS
D
(dBm/Hz
)
200 600 1000 1400 1800 2200 2600
-170
-168
-166
-164
-162
-160
-158
-156
-154
-152
-150
D045
T
A
= -40 q C
T
A
= 25 q C
T
A
= 85 q C
Frequency (MHz)
NS
D
(dBm/Hz
)
200 600 1000 1400 1800 2200 2600
-170
-168
-166
-164
-162
-160
-158
-156
-154
-152
-150
D046
V
CC
= 3.15V, 4.75V
V
CC
= 3.30V, 5.00V
V
CC
= 3.45V, 5.25V
15
TRF3722
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6.12 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
Ω
and 4.7 pF series capacitor at RFOUT. Optimized bias settings as per Table 16 .
Figure 32. Noise vs Temperature, Typical Operating Mode Figure 33. Noise vs Supply, Typical Operating Mode
Figure 34. Noise vs Temperature, High Gain Mode Figure 35. Noise vs Supply, High Gain Mode
Figure 36. Noise vs Temperature, Low Power Mode Figure 37. Noise vs Supply, Low Power Mode