Texas Instruments TRF3722 EVM, Manual

Page: 23 / 69

Offset Frequency (Hz)
P
ha
se Nois
e (
dBc/H
z)
-175
-150
-125
-100
-75
-50
-25
500 1k 10k 100k 1M 10M 40M
D091
T
A
= -40 q C
T
A
= 25 q C
T
A
= 85
q
C
Offset Frequency (Hz)
P
ha
se Nois
e (
dBc/H
z)
-175
-150
-125
-100
-75
-50
-25
500 1k 10k 100k 1M 10M 40M
D092
V
CC
= 3.15V, 4.75V
V
CC
= 3.30V, 5.00V
V
CC
= 3.45V, 5.25V
Offset Frequency (Hz)
P
ha
se Nois
e (
dBc/H
z)
-175
-150
-125
-100
-75
-50
-25
500 1k 10k 100k 1M 10M 40M
D089
T
A
= -40 q C
T
A
= 25
q
C
T
A
= 85 q C
Offset Frequency (Hz)
P
ha
se Nois
e (
dBc/H
z)
-175
-150
-125
-100
-75
-50
-25
500 1k 10k 100k 1M 10M 40M
D090
V
CC
= 3.15V, 4.75V
V
CC
= 3.30V, 5.00V
V
CC
= 3.45V, 5.25V
Offset Frequency (Hz)
P
ha
se Nois
e (
dBc/H
z)
-175
-150
-125
-100
-75
-50
-25
1k 10k 100k 1M 10M 500 40M
D087
T
A
= -40 q C
T
A
= 25
q
C
T
A
= 85 q C
Offset Frequency (Hz)
P
ha
se Nois
e (
dBc/H
z)
-175
-150
-125
-100
-75
-50
-25
500 1k 10k 100k 1M 10M 40M
D088
V
CC
= 3.15V, 4.75V
V
CC
= 3.30V, 5.00V
V
CC
= 3.45V, 5.25V
23
TRF3722
www.ti.com SLWS245B – MAY 2014 – REVISED FEBRUARY 2017
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6.18 Typical Characteristics - PLL/VCO
Unless specified all plots were created using TRF3722EVM, VCC = 3.3 V, VCC_TK = 5 V, and T
A
= 25°C. Measured at
LO_OUTP with 50
Ω
bias resistor and 47 pF series capacitor. Modulator section powered down. Reference frequency is set
to 61.44 MHz. Optimized bias settings as per Table 16 .
Figure 76. Open Loop Phase Noise at 450 MHz vs
Temperature
Figure 77. Open Loop Phase Noise at 450 MHz vs Supply
Figure 78. Open Loop Phase Noise at 900 MHz vs
Temperature
Figure 79. Open Loop Phase Noise at 900 MHz vs Supply
Figure 80. Open Loop Phase Noise at 1800 MHz vs
Temperature
Figure 81. Open Loop Phase Noise at 1800 MHz vs Supply