Datasheet

LTC6957-1/LTC6957-2/
LTC6957-3/LTC6957-4
11
6957f
For more information www.linear.com/LTC6957-1
Typical perForMance characTerisTics
Additive Phase Noise
vs Supply Voltage Additive Phase Noise at 122.88MHz AM to PM Conversion
t
PD
vs Temperature t
PD
vs Temperature
t
PD
vs Supply Voltage and
Termination Voltage
Additive Phase Noise
vs Input Frequency
Additive Phase Noise
vs Amplitude
Additive Phase Noise
vs Temperature
LTC6957-1
OFFSET FREQUENCY (Hz)
100
–165
PHASE NOISE (dBc/Hz)
–145
–140
–130
1k 10k 100k
69571234 G10
–135
–160
–150
–155
1M
300MHz
153.6MHz
100MHz
SINGLE-ENDED SINE WAVE INPUT
AT 7dBm (500mV
RMS
)
FILTA = FILTB = L
OFFSET FREQUENCY (Hz)
100
–165
PHASE NOISE (dBc/Hz)
–145
–140
–130
1k 10k 100k
69571234 G11
–135
–160
–150
–155
1M
0dBm, FILTA = H, FILTB = L
+10dBm, FILTA = FILTB = L
SINGLE-ENDED 100MHz SINE WAVE INPUT
SEE APPLICATIONS INFORMATION
–10dBm, FILTA = L, FILTB = H
OFFSET FREQUENCY (Hz)
100
–165
PHASE NOISE (dBc/Hz)
–145
–140
–130
1k 10k 100k
69571234 G12
–135
–160
–150
–155
1M
25°C
125°C
–55°C
SINGLE-ENDED SINE WAVE INPUT,
100MHz at 7dBm (500mV
RMS
)
FILTA = FILTB = L
OFFSET FREQUENCY (Hz)
100
–165
PHASE NOISE (dBc/Hz)
–145
–140
–130
1k 10k 100k
69571234 G13
–135
–160
–150
–155
1M
3.3V
3.45V
3.15V
SINGLE-ENDED SINE WAVE INPUT,
100MHz at 7dBm (500mV
RMS
)
FILTA = FILTB = L
OFFSET FREQUENCY (Hz)
100
–165
PHASE NOISE (dBc/Hz)
–145
–140
–130
1k 10k 100k
69571234 G14
–135
–160
–150
–155
1M
0dBm, FILTA = H, FILTB = L
7dBm, FILTA = FILTB = L
SINGLE-ENDED SINE WAVE INPUT
INPUT AMPLITUDE (dBm)
–10
–5
NORMALIZED PHASE (DEG)
–1
0
5
–8 –6 –4 –2 0 2 4 6 8
69571234 G15
4
–4
–2
2
3
1
–3
10
–55°C
125°C
25°C
EACH CURVE NORMALIZED TO 0° AT 0dBm
f
IN
= 300MHz
V
+
= 3.3V
TEMPERATURE (°C)
–55
0
t
PD
(ns)
3.5
–35 –15 85 10545 655 25
69571234 G16
0.5
3.0
1.0
125
FILTA = L, FILTB = H
FILTA = H, FILTB = L
FILTA = FILTB = L
FILTA = FILTB = H
TEMPERATURE (°C)
–55
0.450
t
PD
(ns)
0.550
–35 –15 85 10545 655 25
69571234 G17
0.475
0.525
0.500
125
V
+
= 3.6V, 50Ω LOADS TO 1.9V
V
+
= 3.0V, 50Ω LOADS TO 1.3V
V
+
= 3.3V, 50Ω LOADS TO 1.3V
FILTA = FILTB = L
SUPPLY VOLTAGE (V)
3
0.46
t
PD
(ns)
0.56
3.1 3.2 3.53.3 3.4
69571234 G18
0.48
0.52
0.54
0.50
3.6
50Ω LOADS TO V
+
–2V
50Ω LOADS TO FIXED 1.3V
FILTA = FILTB = L